/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 11:27:50,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 11:27:50,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 11:27:50,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 11:27:50,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 11:27:50,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 11:27:50,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 11:27:50,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 11:27:50,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 11:27:50,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 11:27:50,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 11:27:50,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 11:27:50,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 11:27:50,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 11:27:50,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 11:27:50,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 11:27:50,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 11:27:50,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 11:27:50,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 11:27:50,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 11:27:50,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 11:27:50,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 11:27:50,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 11:27:50,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 11:27:50,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 11:27:50,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 11:27:50,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 11:27:50,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 11:27:50,161 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-16 11:27:50,191 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 11:27:50,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 11:27:50,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 11:27:50,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 11:27:50,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 11:27:50,192 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 11:27:50,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 11:27:50,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 11:27:50,193 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 11:27:50,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 11:27:50,193 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 11:27:50,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 11:27:50,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 11:27:50,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 11:27:50,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 11:27:50,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 11:27:50,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 11:27:50,194 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 11:27:50,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 11:27:50,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 11:27:50,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 11:27:50,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 11:27:50,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 11:27:50,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 11:27:50,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 11:27:50,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 11:27:50,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 11:27:50,196 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 11:27:50,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 11:27:50,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 11:27:50,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 11:27:50,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 11:27:50,196 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 11:27:50,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 11:27:50,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 11:27:50,196 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 11:27:50,197 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 11:27:50,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 11:27:50,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 11:27:50,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 11:27:50,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 11:27:50,379 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 11:27:50,381 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 11:27:50,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl [2022-03-16 11:27:50,382 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl' [2022-03-16 11:27:50,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 11:27:50,401 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 11:27:50,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 11:27:50,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 11:27:50,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 11:27:50,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/1) ... [2022-03-16 11:27:50,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/1) ... [2022-03-16 11:27:50,431 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 11:27:50,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 11:27:50,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 11:27:50,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 11:27:50,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 11:27:50,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/1) ... [2022-03-16 11:27:50,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/1) ... [2022-03-16 11:27:50,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/1) ... [2022-03-16 11:27:50,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/1) ... [2022-03-16 11:27:50,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/1) ... [2022-03-16 11:27:50,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/1) ... [2022-03-16 11:27:50,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/1) ... [2022-03-16 11:27:50,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 11:27:50,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 11:27:50,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 11:27:50,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 11:27:50,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/1) ... [2022-03-16 11:27:50,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 11:27:50,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:27:50,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 11:27:50,494 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 11:27:50,504 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 11:27:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 11:27:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 11:27:50,505 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 11:27:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 11:27:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 11:27:50,505 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 11:27:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 11:27:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 11:27:50,505 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 11:27:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 11:27:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 11:27:50,506 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 11:27:50,548 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 11:27:50,549 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 11:27:50,610 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 11:27:50,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 11:27:50,622 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 11:27:50,623 INFO L202 PluginConnector]: Adding new model three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:27:50 BoogieIcfgContainer [2022-03-16 11:27:50,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 11:27:50,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 11:27:50,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 11:27:50,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 11:27:50,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:27:50" (1/2) ... [2022-03-16 11:27:50,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550d1cbb and model type three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 11:27:50, skipping insertion in model container [2022-03-16 11:27:50,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:27:50" (2/2) ... [2022-03-16 11:27:50,633 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-sum.wvr.bpl [2022-03-16 11:27:50,637 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 11:27:50,637 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 11:27:50,637 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 11:27:50,637 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 11:27:50,659 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 11:27:50,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 11:27:50,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:27:50,701 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 11:27:50,702 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 11:27:50,733 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 11:27:50,737 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=false, mMcrOverapproximateWrwc=true [2022-03-16 11:27:50,737 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 11:27:50,981 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 14495 transitions and produced 4462 states. [2022-03-16 11:27:50,983 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:27:50,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:27:50,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1931308553, now seen corresponding path program 1 times [2022-03-16 11:27:50,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:27:50,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222179077] [2022-03-16 11:27:50,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:27:50,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:27:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:27:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-03-16 11:27:51,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:27:51,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222179077] [2022-03-16 11:27:51,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222179077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 11:27:51,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 11:27:51,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 11:27:51,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869090955] [2022-03-16 11:27:51,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 11:27:51,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 11:27:51,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:27:51,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 11:27:51,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 11:27:51,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:51,303 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:27:51,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 11:27:51,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:51,367 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 337 transitions and produced 243 states. [2022-03-16 11:27:51,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:51,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 11:27:51,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:27:51,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:27:51,369 INFO L85 PathProgramCache]: Analyzing trace with hash -225451273, now seen corresponding path program 2 times [2022-03-16 11:27:51,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:27:51,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997726495] [2022-03-16 11:27:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:27:51,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:27:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:27:51,420 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-03-16 11:27:51,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:27:51,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997726495] [2022-03-16 11:27:51,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997726495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 11:27:51,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 11:27:51,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 11:27:51,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052128100] [2022-03-16 11:27:51,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 11:27:51,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 11:27:51,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:27:51,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 11:27:51,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 11:27:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:51,423 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:27:51,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 11:27:51,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:51,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:51,465 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 275 transitions and produced 216 states. [2022-03-16 11:27:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:51,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 11:27:51,466 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:27:51,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:27:51,468 INFO L85 PathProgramCache]: Analyzing trace with hash 240103357, now seen corresponding path program 1 times [2022-03-16 11:27:51,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:27:51,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051156160] [2022-03-16 11:27:51,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:27:51,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:27:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:27:51,809 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 118 proven. 76 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-16 11:27:51,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:27:51,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051156160] [2022-03-16 11:27:51,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051156160] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:27:51,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138069406] [2022-03-16 11:27:51,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:27:51,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:27:51,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:27:51,813 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 11:27:51,815 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 11:27:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:27:51,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-16 11:27:51,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:27:52,158 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 4 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-03-16 11:27:52,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:27:52,273 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 4 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-03-16 11:27:52,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138069406] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:27:52,273 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:27:52,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 7, 7] total 27 [2022-03-16 11:27:52,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382069949] [2022-03-16 11:27:52,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:27:52,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-16 11:27:52,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:27:52,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-16 11:27:52,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2022-03-16 11:27:52,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:52,277 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:27:52,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.6785714285714284) internal successors, (75), 27 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 11:27:52,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:52,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:52,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:52,515 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 307 transitions and produced 240 states. [2022-03-16 11:27:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:27:52,536 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 11:27:52,731 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,SelfDestructingSolverStorable2 [2022-03-16 11:27:52,731 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:27:52,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:27:52,732 INFO L85 PathProgramCache]: Analyzing trace with hash -330444645, now seen corresponding path program 2 times [2022-03-16 11:27:52,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:27:52,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230405821] [2022-03-16 11:27:52,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:27:52,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:27:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:27:52,840 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 136 proven. 22 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-03-16 11:27:52,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:27:52,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230405821] [2022-03-16 11:27:52,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230405821] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:27:52,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241857072] [2022-03-16 11:27:52,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 11:27:52,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:27:52,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:27:52,843 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 11:27:52,844 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 11:27:52,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 11:27:52,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:27:52,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-16 11:27:52,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:27:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 86 proven. 9 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-16 11:27:53,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:27:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 86 proven. 9 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-16 11:27:53,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241857072] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:27:53,172 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:27:53,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2022-03-16 11:27:53,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263996536] [2022-03-16 11:27:53,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:27:53,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-16 11:27:53,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:27:53,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-16 11:27:53,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-16 11:27:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:53,173 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:27:53,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 18 states have internal predecessors, (63), 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 11:27:53,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:53,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:53,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:27:53,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:53,574 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1578 transitions and produced 780 states. [2022-03-16 11:27:53,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:53,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:53,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:27:53,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:27:53,597 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 11:27:53,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:27:53,779 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:27:53,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:27:53,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1128739321, now seen corresponding path program 3 times [2022-03-16 11:27:53,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:27:53,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741111265] [2022-03-16 11:27:53,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:27:53,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:27:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:27:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 187 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 11:27:53,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:27:53,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741111265] [2022-03-16 11:27:53,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741111265] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:27:53,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233329777] [2022-03-16 11:27:53,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 11:27:53,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:27:53,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:27:53,952 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 11:27:53,953 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 11:27:53,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-03-16 11:27:53,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:27:53,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-03-16 11:27:53,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:27:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-03-16 11:27:54,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:27:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-03-16 11:27:54,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233329777] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:27:54,177 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:27:54,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6, 6] total 23 [2022-03-16 11:27:54,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802278143] [2022-03-16 11:27:54,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:27:54,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-16 11:27:54,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:27:54,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-16 11:27:54,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-03-16 11:27:54,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:54,178 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:27:54,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.608695652173913) internal successors, (83), 23 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 11:27:54,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:54,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:54,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:27:54,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:27:54,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:54,766 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9826 transitions and produced 3911 states. [2022-03-16 11:27:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:27:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:27:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:27:54,785 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 11:27:54,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:27:54,980 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:27:54,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:27:54,980 INFO L85 PathProgramCache]: Analyzing trace with hash -9648347, now seen corresponding path program 4 times [2022-03-16 11:27:54,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:27:54,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104612651] [2022-03-16 11:27:54,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:27:54,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:27:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:27:55,100 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 99 proven. 97 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-16 11:27:55,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:27:55,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104612651] [2022-03-16 11:27:55,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104612651] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:27:55,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38518113] [2022-03-16 11:27:55,101 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 11:27:55,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:27:55,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:27:55,102 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 11:27:55,103 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 11:27:55,152 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 11:27:55,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:27:55,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-16 11:27:55,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:27:55,342 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 126 proven. 25 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-16 11:27:55,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:27:55,443 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 126 proven. 25 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-16 11:27:55,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38518113] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:27:55,444 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:27:55,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 24 [2022-03-16 11:27:55,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666093690] [2022-03-16 11:27:55,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:27:55,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-16 11:27:55,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:27:55,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-16 11:27:55,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2022-03-16 11:27:55,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:55,445 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:27:55,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 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 11:27:55,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:55,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:55,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:27:55,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:27:55,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:27:55,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:55,820 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 318 transitions and produced 265 states. [2022-03-16 11:27:55,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:55,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:55,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:27:55,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:27:55,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:27:55,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:27:55,840 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 11:27:56,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:27:56,022 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:27:56,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:27:56,022 INFO L85 PathProgramCache]: Analyzing trace with hash 84066311, now seen corresponding path program 5 times [2022-03-16 11:27:56,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:27:56,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537882007] [2022-03-16 11:27:56,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:27:56,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:27:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:27:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 16 proven. 188 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-16 11:27:56,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:27:56,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537882007] [2022-03-16 11:27:56,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537882007] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:27:56,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102537678] [2022-03-16 11:27:56,153 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 11:27:56,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:27:56,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:27:56,154 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 11:27:56,155 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 11:27:56,242 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2022-03-16 11:27:56,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:27:56,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-16 11:27:56,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:27:56,600 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 199 proven. 36 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-16 11:27:56,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:27:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 199 proven. 36 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-16 11:27:56,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102537678] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:27:56,915 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:27:56,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21, 21] total 45 [2022-03-16 11:27:56,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112412194] [2022-03-16 11:27:56,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:27:56,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-16 11:27:56,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:27:56,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-16 11:27:56,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1707, Unknown=0, NotChecked=0, Total=2070 [2022-03-16 11:27:56,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:56,917 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:27:56,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.3043478260869565) internal successors, (152), 45 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 11:27:56,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:56,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:56,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:27:56,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:27:56,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:27:56,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:27:56,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:58,445 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 19734 transitions and produced 6794 states. [2022-03-16 11:27:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:27:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:27:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:27:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:27:58,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:27:58,465 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 11:27:58,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:27:58,660 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:27:58,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:27:58,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1129448745, now seen corresponding path program 6 times [2022-03-16 11:27:58,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:27:58,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941612715] [2022-03-16 11:27:58,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:27:58,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:27:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:27:58,889 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 121 proven. 402 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-16 11:27:58,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:27:58,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941612715] [2022-03-16 11:27:58,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941612715] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:27:58,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676853632] [2022-03-16 11:27:58,889 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 11:27:58,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:27:58,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:27:58,892 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 11:27:58,893 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 11:27:59,003 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-03-16 11:27:59,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:27:59,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-16 11:27:59,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:27:59,193 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 115 proven. 9 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2022-03-16 11:27:59,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:27:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 115 proven. 9 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2022-03-16 11:27:59,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676853632] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:27:59,303 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:27:59,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 8, 8] total 29 [2022-03-16 11:27:59,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641617719] [2022-03-16 11:27:59,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:27:59,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-16 11:27:59,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:27:59,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-16 11:27:59,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2022-03-16 11:27:59,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:59,305 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:27:59,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.586206896551724) internal successors, (104), 29 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 11:27:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:27:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:27:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:27:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:27:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:27:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:27:59,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:01,802 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 70226 transitions and produced 20061 states. [2022-03-16 11:28:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:01,824 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 11:28:02,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:28:02,008 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:28:02,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:28:02,008 INFO L85 PathProgramCache]: Analyzing trace with hash -350888373, now seen corresponding path program 7 times [2022-03-16 11:28:02,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:28:02,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075758608] [2022-03-16 11:28:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:28:02,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:28:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:28:02,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 121 proven. 835 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-16 11:28:02,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:28:02,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075758608] [2022-03-16 11:28:02,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075758608] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:28:02,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634409242] [2022-03-16 11:28:02,300 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 11:28:02,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:28:02,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:28:02,302 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 11:28:02,303 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 11:28:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:28:02,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-16 11:28:02,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:28:03,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 603 proven. 169 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-03-16 11:28:03,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:28:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 603 proven. 169 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-03-16 11:28:03,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634409242] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:28:03,259 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:28:03,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 29, 29] total 55 [2022-03-16 11:28:03,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389201451] [2022-03-16 11:28:03,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:28:03,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-03-16 11:28:03,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:28:03,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-03-16 11:28:03,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=2645, Unknown=0, NotChecked=0, Total=3080 [2022-03-16 11:28:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:03,261 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:28:03,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 3.1607142857142856) internal successors, (177), 55 states have internal predecessors, (177), 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 11:28:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:03,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:03,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:03,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:03,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:06,094 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 70195 transitions and produced 20275 states. [2022-03-16 11:28:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:28:06,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-16 11:28:06,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-16 11:28:06,295 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:28:06,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:28:06,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1527840493, now seen corresponding path program 8 times [2022-03-16 11:28:06,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:28:06,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419735166] [2022-03-16 11:28:06,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:28:06,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:28:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:28:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 144 proven. 876 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-16 11:28:06,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:28:06,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419735166] [2022-03-16 11:28:06,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419735166] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:28:06,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552641685] [2022-03-16 11:28:06,639 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 11:28:06,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:28:06,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:28:06,640 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 11:28:06,640 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 11:28:06,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 11:28:06,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:28:06,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 31 conjunts are in the unsatisfiable core [2022-03-16 11:28:06,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:28:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 645 proven. 196 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-03-16 11:28:07,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:28:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 645 proven. 196 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-03-16 11:28:07,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552641685] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:28:07,678 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:28:07,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 31, 31] total 59 [2022-03-16 11:28:07,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920102990] [2022-03-16 11:28:07,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:28:07,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-03-16 11:28:07,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:28:07,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-03-16 11:28:07,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=3044, Unknown=0, NotChecked=0, Total=3540 [2022-03-16 11:28:07,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:07,680 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:28:07,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.1166666666666667) internal successors, (187), 59 states have internal predecessors, (187), 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 11:28:07,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:07,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:07,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:07,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:07,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:07,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:07,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:07,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:07,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:28:07,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:10,755 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 77704 transitions and produced 22361 states. [2022-03-16 11:28:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:10,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:28:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:28:10,778 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 11:28:10,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-16 11:28:10,963 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:28:10,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:28:10,964 INFO L85 PathProgramCache]: Analyzing trace with hash -291375929, now seen corresponding path program 9 times [2022-03-16 11:28:10,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:28:10,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889100849] [2022-03-16 11:28:10,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:28:10,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:28:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:28:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 169 proven. 920 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-16 11:28:11,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:28:11,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889100849] [2022-03-16 11:28:11,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889100849] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:28:11,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648402244] [2022-03-16 11:28:11,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 11:28:11,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:28:11,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:28:11,313 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:28:11,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 11:28:11,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-03-16 11:28:11,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:28:11,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-16 11:28:11,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:28:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 504 proven. 130 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2022-03-16 11:28:11,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:28:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 504 proven. 130 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2022-03-16 11:28:11,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648402244] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:28:11,883 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:28:11,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 14, 14] total 38 [2022-03-16 11:28:11,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141099231] [2022-03-16 11:28:11,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:28:11,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-16 11:28:11,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:28:11,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-16 11:28:11,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1127, Unknown=0, NotChecked=0, Total=1406 [2022-03-16 11:28:11,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:11,884 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:28:11,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 38 states have internal predecessors, (145), 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 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:28:11,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:18,281 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 234187 transitions and produced 61416 states. [2022-03-16 11:28:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:28:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:28:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-03-16 11:28:18,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-16 11:28:18,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-16 11:28:18,486 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:28:18,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:28:18,486 INFO L85 PathProgramCache]: Analyzing trace with hash 888557433, now seen corresponding path program 10 times [2022-03-16 11:28:18,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:28:18,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511784028] [2022-03-16 11:28:18,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:28:18,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:28:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:28:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 538 proven. 639 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-03-16 11:28:18,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:28:18,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511784028] [2022-03-16 11:28:18,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511784028] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:28:18,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981223] [2022-03-16 11:28:18,896 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 11:28:18,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:28:18,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:28:18,897 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:28:18,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 11:28:19,016 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 11:28:19,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:28:19,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-16 11:28:19,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:28:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 740 proven. 225 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-03-16 11:28:19,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:28:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 740 proven. 225 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-03-16 11:28:19,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981223] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:28:19,754 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:28:19,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33, 33] total 55 [2022-03-16 11:28:19,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304621932] [2022-03-16 11:28:19,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:28:19,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-03-16 11:28:19,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:28:19,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-03-16 11:28:19,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=479, Invalid=2601, Unknown=0, NotChecked=0, Total=3080 [2022-03-16 11:28:19,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:19,756 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:28:19,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 2.9107142857142856) internal successors, (163), 55 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 11:28:19,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:19,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:19,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:19,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:19,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:19,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:19,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:19,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:19,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:28:19,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:28:19,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-03-16 11:28:19,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:20,877 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 619 transitions and produced 516 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:28:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-03-16 11:28:20,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 11:28:20,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-16 11:28:21,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-16 11:28:21,079 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:28:21,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:28:21,080 INFO L85 PathProgramCache]: Analyzing trace with hash 387056859, now seen corresponding path program 11 times [2022-03-16 11:28:21,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:28:21,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636301842] [2022-03-16 11:28:21,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:28:21,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:28:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:28:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 196 proven. 1051 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-03-16 11:28:21,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:28:21,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636301842] [2022-03-16 11:28:21,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636301842] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:28:21,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965970178] [2022-03-16 11:28:21,448 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 11:28:21,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:28:21,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:28:21,449 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:28:21,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-16 11:28:21,906 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2022-03-16 11:28:21,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:28:21,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-16 11:28:21,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:28:23,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 1008 proven. 256 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-16 11:28:23,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:28:23,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 1008 proven. 256 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-16 11:28:23,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965970178] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:28:23,888 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:28:23,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 45, 45] total 97 [2022-03-16 11:28:23,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739367481] [2022-03-16 11:28:23,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:28:23,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-03-16 11:28:23,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:28:23,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-03-16 11:28:23,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1435, Invalid=8071, Unknown=0, NotChecked=0, Total=9506 [2022-03-16 11:28:23,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:23,892 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:28:23,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 3.142857142857143) internal successors, (308), 97 states have internal predecessors, (308), 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 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:28:23,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-03-16 11:28:23,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-16 11:28:23,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:30,506 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 264696 transitions and produced 70035 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-03-16 11:28:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 11:28:30,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-03-16 11:28:30,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-16 11:28:30,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-16 11:28:30,710 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:28:30,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:28:30,711 INFO L85 PathProgramCache]: Analyzing trace with hash 323512747, now seen corresponding path program 12 times [2022-03-16 11:28:30,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:28:30,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193363159] [2022-03-16 11:28:30,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:28:30,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:28:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:28:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1834 backedges. 625 proven. 1141 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-03-16 11:28:31,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:28:31,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193363159] [2022-03-16 11:28:31,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193363159] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:28:31,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014123106] [2022-03-16 11:28:31,366 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 11:28:31,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:28:31,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:28:31,367 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:28:31,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-16 11:28:31,607 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2022-03-16 11:28:31,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:28:31,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-16 11:28:31,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:28:32,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1834 backedges. 718 proven. 315 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2022-03-16 11:28:32,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:28:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1834 backedges. 718 proven. 315 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2022-03-16 11:28:32,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014123106] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:28:32,697 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:28:32,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 22, 22] total 73 [2022-03-16 11:28:32,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060434275] [2022-03-16 11:28:32,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:28:32,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-03-16 11:28:32,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:28:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-03-16 11:28:32,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=925, Invalid=4331, Unknown=0, NotChecked=0, Total=5256 [2022-03-16 11:28:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:32,700 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:28:32,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 3.589041095890411) internal successors, (262), 73 states have internal predecessors, (262), 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 11:28:32,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:32,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:28:32,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 175 states. [2022-03-16 11:28:32,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:29:40,909 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3686900 transitions and produced 918707 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-03-16 11:29:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 655 states. [2022-03-16 11:29:40,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-16 11:29:41,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-16 11:29:41,120 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:29:41,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:29:41,120 INFO L85 PathProgramCache]: Analyzing trace with hash -944362109, now seen corresponding path program 13 times [2022-03-16 11:29:41,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:29:41,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701697713] [2022-03-16 11:29:41,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:29:41,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:29:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:29:42,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 1899 proven. 729 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-03-16 11:29:42,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:29:42,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701697713] [2022-03-16 11:29:42,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701697713] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:29:42,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585084128] [2022-03-16 11:29:42,300 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 11:29:42,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:29:42,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:29:42,302 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:29:42,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-16 11:29:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:29:42,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-16 11:29:42,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:29:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 1589 proven. 729 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2022-03-16 11:29:42,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:29:43,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 1589 proven. 729 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2022-03-16 11:29:43,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585084128] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:29:43,074 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:29:43,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 57, 57] total 66 [2022-03-16 11:29:43,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504427417] [2022-03-16 11:29:43,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:29:43,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-03-16 11:29:43,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:29:43,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-03-16 11:29:43,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1167, Invalid=3255, Unknown=0, NotChecked=0, Total=4422 [2022-03-16 11:29:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:29:43,076 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:29:43,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.701492537313433) internal successors, (181), 66 states have internal predecessors, (181), 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 11:29:43,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:29:43,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:29:43,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:29:43,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:29:43,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:29:43,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:29:43,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:29:43,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:29:43,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:29:43,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:29:43,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-03-16 11:29:43,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-16 11:29:43,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 175 states. [2022-03-16 11:29:43,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 655 states. [2022-03-16 11:29:43,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:29:44,068 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 928 transitions and produced 764 states. [2022-03-16 11:29:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:29:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 655 states. [2022-03-16 11:29:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 11:29:44,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-03-16 11:29:44,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:29:44,270 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:29:44,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:29:44,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1406156955, now seen corresponding path program 14 times [2022-03-16 11:29:44,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:29:44,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312098343] [2022-03-16 11:29:44,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:29:44,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:29:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:29:45,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 676 proven. 2227 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-03-16 11:29:45,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:29:45,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312098343] [2022-03-16 11:29:45,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312098343] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:29:45,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47841399] [2022-03-16 11:29:45,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 11:29:45,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:29:45,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:29:45,143 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:29:45,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-16 11:29:45,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 11:29:45,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:29:45,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 59 conjunts are in the unsatisfiable core [2022-03-16 11:29:45,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:29:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 1648 proven. 784 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-03-16 11:29:47,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:29:47,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 1648 proven. 784 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-03-16 11:29:47,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47841399] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:29:47,731 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:29:47,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 59, 59] total 115 [2022-03-16 11:29:47,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515250245] [2022-03-16 11:29:47,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:29:47,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-03-16 11:29:47,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:29:47,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-03-16 11:29:47,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=11570, Unknown=0, NotChecked=0, Total=13340 [2022-03-16 11:29:47,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:29:47,736 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:29:47,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 2.7413793103448274) internal successors, (318), 115 states have internal predecessors, (318), 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 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 175 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 655 states. [2022-03-16 11:29:47,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-16 11:29:47,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.