/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/loop-lit/gr2006.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:50:22,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:50:22,534 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:50:22,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:50:22,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:50:22,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:50:22,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:50:22,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:50:22,557 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:50:22,557 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:50:22,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:50:22,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:50:22,558 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:50:22,559 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:50:22,559 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:50:22,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:50:22,560 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:50:22,560 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:50:22,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:50:22,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:50:22,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:50:22,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:50:22,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:50:22,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:50:22,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:50:22,566 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:50:22,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:50:22,567 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:50:22,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:50:22,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:50:22,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:50:22,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:50:22,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:50:22,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:50:22,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:50:22,568 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:50:22,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:50:22,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:50:22,569 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:50:22,569 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:50:22,570 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:50:22,570 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:50:22,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:50:22,570 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:50:22,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:50:22,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:50:22,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:50:22,775 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:50:22,776 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:50:22,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gr2006.i [2023-12-16 04:50:23,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:50:24,168 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:50:24,169 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gr2006.i [2023-12-16 04:50:24,175 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1b66de55/e34ca192e63e4592a8b7150b86cc8111/FLAGe7a5f2bcd [2023-12-16 04:50:24,186 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1b66de55/e34ca192e63e4592a8b7150b86cc8111 [2023-12-16 04:50:24,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:50:24,189 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:50:24,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:50:24,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:50:24,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:50:24,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a094338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24, skipping insertion in model container [2023-12-16 04:50:24,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,218 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:50:24,361 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gr2006.i[895,908] [2023-12-16 04:50:24,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:50:24,381 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:50:24,389 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gr2006.i[895,908] [2023-12-16 04:50:24,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:50:24,402 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:50:24,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24 WrapperNode [2023-12-16 04:50:24,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:50:24,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:50:24,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:50:24,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:50:24,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,431 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2023-12-16 04:50:24,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:50:24,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:50:24,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:50:24,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:50:24,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,449 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 04:50:24,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:50:24,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:50:24,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:50:24,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:50:24,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (1/1) ... [2023-12-16 04:50:24,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:50:24,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:50:24,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 04:50:24,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 04:50:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:50:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:50:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:50:24,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:50:24,555 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:50:24,557 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:50:24,648 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:50:24,667 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:50:24,667 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:50:24,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:50:24 BoogieIcfgContainer [2023-12-16 04:50:24,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:50:24,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:50:24,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:50:24,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:50:24,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:50:24" (1/3) ... [2023-12-16 04:50:24,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec43154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:50:24, skipping insertion in model container [2023-12-16 04:50:24,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:50:24" (2/3) ... [2023-12-16 04:50:24,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec43154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:50:24, skipping insertion in model container [2023-12-16 04:50:24,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:50:24" (3/3) ... [2023-12-16 04:50:24,676 INFO L112 eAbstractionObserver]: Analyzing ICFG gr2006.i [2023-12-16 04:50:24,692 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:50:24,692 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:50:24,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:50:24,736 INFO L357 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b349cdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:50:24,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:50:24,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 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) [2023-12-16 04:50:24,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-16 04:50:24,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:24,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-16 04:50:24,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:24,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:24,751 INFO L85 PathProgramCache]: Analyzing trace with hash 68157933, now seen corresponding path program 1 times [2023-12-16 04:50:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:24,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616783088] [2023-12-16 04:50:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:24,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:24,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 04:50:24,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:24,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616783088] [2023-12-16 04:50:24,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616783088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:50:24,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:50:24,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:50:24,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617446557] [2023-12-16 04:50:24,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:50:24,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:50:24,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:24,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:50:24,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:50:24,950 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-12-16 04:50:24,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:24,973 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2023-12-16 04:50:24,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:50:24,975 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2023-12-16 04:50:24,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:24,981 INFO L225 Difference]: With dead ends: 16 [2023-12-16 04:50:24,981 INFO L226 Difference]: Without dead ends: 8 [2023-12-16 04:50:24,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:50:24,988 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:24,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:50:25,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-12-16 04:50:25,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-12-16 04:50:25,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2023-12-16 04:50:25,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2023-12-16 04:50:25,017 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2023-12-16 04:50:25,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:25,017 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-12-16 04:50:25,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-12-16 04:50:25,017 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-16 04:50:25,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 04:50:25,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:25,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:50:25,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:50:25,019 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:25,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:25,019 INFO L85 PathProgramCache]: Analyzing trace with hash 693578006, now seen corresponding path program 1 times [2023-12-16 04:50:25,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:25,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58082902] [2023-12-16 04:50:25,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:25,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:25,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 04:50:25,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:25,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58082902] [2023-12-16 04:50:25,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58082902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:50:25,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:50:25,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:50:25,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501817505] [2023-12-16 04:50:25,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:50:25,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:50:25,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:25,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:50:25,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:50:25,128 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-12-16 04:50:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:25,167 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2023-12-16 04:50:25,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:50:25,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2023-12-16 04:50:25,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:25,169 INFO L225 Difference]: With dead ends: 22 [2023-12-16 04:50:25,169 INFO L226 Difference]: Without dead ends: 15 [2023-12-16 04:50:25,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:50:25,170 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:25,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:50:25,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-16 04:50:25,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2023-12-16 04:50:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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) [2023-12-16 04:50:25,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2023-12-16 04:50:25,174 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2023-12-16 04:50:25,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:25,174 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-12-16 04:50:25,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-12-16 04:50:25,174 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-12-16 04:50:25,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 04:50:25,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:25,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:50:25,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 04:50:25,175 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:25,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:25,176 INFO L85 PathProgramCache]: Analyzing trace with hash 691730964, now seen corresponding path program 1 times [2023-12-16 04:50:25,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:25,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225068030] [2023-12-16 04:50:25,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:25,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:25,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 04:50:25,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:25,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225068030] [2023-12-16 04:50:25,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225068030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:50:25,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:50:25,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:50:25,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758720474] [2023-12-16 04:50:25,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:50:25,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:50:25,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:25,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:50:25,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:50:25,250 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-12-16 04:50:25,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:25,281 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2023-12-16 04:50:25,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 04:50:25,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2023-12-16 04:50:25,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:25,282 INFO L225 Difference]: With dead ends: 17 [2023-12-16 04:50:25,282 INFO L226 Difference]: Without dead ends: 13 [2023-12-16 04:50:25,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:50:25,284 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:25,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:50:25,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-12-16 04:50:25,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-12-16 04:50:25,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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) [2023-12-16 04:50:25,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2023-12-16 04:50:25,288 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2023-12-16 04:50:25,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:25,288 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-12-16 04:50:25,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-12-16 04:50:25,288 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-12-16 04:50:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-16 04:50:25,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:25,289 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:50:25,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 04:50:25,289 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:25,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:25,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1437324855, now seen corresponding path program 1 times [2023-12-16 04:50:25,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:25,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330722433] [2023-12-16 04:50:25,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:25,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:25,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 04:50:25,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:25,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330722433] [2023-12-16 04:50:25,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330722433] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:50:25,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887357954] [2023-12-16 04:50:25,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:25,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:25,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:50:25,383 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:50:25,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:50:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:25,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:50:25,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:50:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 04:50:25,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:50:25,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 04:50:25,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887357954] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:50:25,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:50:25,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-12-16 04:50:25,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784774658] [2023-12-16 04:50:25,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:50:25,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:50:25,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:25,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:50:25,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:50:25,509 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 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) [2023-12-16 04:50:25,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:25,536 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2023-12-16 04:50:25,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:50:25,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 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) Word has length 10 [2023-12-16 04:50:25,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:25,537 INFO L225 Difference]: With dead ends: 34 [2023-12-16 04:50:25,537 INFO L226 Difference]: Without dead ends: 27 [2023-12-16 04:50:25,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:50:25,539 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:25,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 29 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:50:25,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-12-16 04:50:25,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2023-12-16 04:50:25,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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) [2023-12-16 04:50:25,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2023-12-16 04:50:25,545 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 10 [2023-12-16 04:50:25,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:25,545 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2023-12-16 04:50:25,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 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) [2023-12-16 04:50:25,545 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-12-16 04:50:25,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-16 04:50:25,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:25,546 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-12-16 04:50:25,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 04:50:25,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:25,753 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:25,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:25,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1112727082, now seen corresponding path program 2 times [2023-12-16 04:50:25,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:25,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566654811] [2023-12-16 04:50:25,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:25,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 04:50:25,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:25,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566654811] [2023-12-16 04:50:25,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566654811] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:50:25,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524691743] [2023-12-16 04:50:25,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 04:50:25,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:25,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:50:25,908 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) [2023-12-16 04:50:25,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:50:25,959 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 04:50:25,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 04:50:25,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 04:50:25,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:50:26,054 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 04:50:26,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:50:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 04:50:26,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524691743] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:50:26,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:50:26,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-12-16 04:50:26,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285144068] [2023-12-16 04:50:26,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:50:26,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 04:50:26,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:26,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 04:50:26,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:50:26,137 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 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) [2023-12-16 04:50:26,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:26,263 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2023-12-16 04:50:26,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 04:50:26,264 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 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) Word has length 19 [2023-12-16 04:50:26,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:26,265 INFO L225 Difference]: With dead ends: 46 [2023-12-16 04:50:26,265 INFO L226 Difference]: Without dead ends: 39 [2023-12-16 04:50:26,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2023-12-16 04:50:26,270 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:26,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 36 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:50:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-12-16 04:50:26,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2023-12-16 04:50:26,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 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) [2023-12-16 04:50:26,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2023-12-16 04:50:26,289 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 19 [2023-12-16 04:50:26,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:26,289 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2023-12-16 04:50:26,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 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) [2023-12-16 04:50:26,290 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-12-16 04:50:26,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-16 04:50:26,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:26,291 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 5, 5, 1, 1, 1, 1, 1] [2023-12-16 04:50:26,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:50:26,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:26,502 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:26,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash -934894793, now seen corresponding path program 3 times [2023-12-16 04:50:26,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:26,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122459421] [2023-12-16 04:50:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:26,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 73 proven. 40 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 04:50:26,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122459421] [2023-12-16 04:50:26,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122459421] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:50:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022507368] [2023-12-16 04:50:26,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 04:50:26,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:26,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:50:26,635 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) [2023-12-16 04:50:26,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:50:26,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2023-12-16 04:50:26,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 04:50:26,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 04:50:26,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:50:26,715 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 73 proven. 40 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 04:50:26,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:50:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 73 proven. 40 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 04:50:26,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022507368] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:50:26,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:50:26,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-12-16 04:50:26,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388590647] [2023-12-16 04:50:26,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:50:26,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 04:50:26,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:26,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 04:50:26,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:50:26,813 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 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) [2023-12-16 04:50:26,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:26,867 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions. [2023-12-16 04:50:26,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:50:26,867 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 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) Word has length 34 [2023-12-16 04:50:26,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:26,869 INFO L225 Difference]: With dead ends: 79 [2023-12-16 04:50:26,869 INFO L226 Difference]: Without dead ends: 59 [2023-12-16 04:50:26,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:50:26,872 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:26,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:50:26,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-16 04:50:26,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2023-12-16 04:50:26,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 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) [2023-12-16 04:50:26,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2023-12-16 04:50:26,881 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 34 [2023-12-16 04:50:26,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:26,881 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2023-12-16 04:50:26,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 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) [2023-12-16 04:50:26,882 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2023-12-16 04:50:26,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 04:50:26,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:26,883 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 12, 5, 1, 1, 1, 1, 1] [2023-12-16 04:50:26,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 04:50:27,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:27,084 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:27,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:27,085 INFO L85 PathProgramCache]: Analyzing trace with hash -563127658, now seen corresponding path program 4 times [2023-12-16 04:50:27,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:27,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211969760] [2023-12-16 04:50:27,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:27,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:27,340 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 164 proven. 222 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 04:50:27,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:27,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211969760] [2023-12-16 04:50:27,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211969760] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:50:27,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488732272] [2023-12-16 04:50:27,341 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-16 04:50:27,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:27,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:50:27,342 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) [2023-12-16 04:50:27,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:50:27,406 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-16 04:50:27,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 04:50:27,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 04:50:27,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:50:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 62 proven. 345 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 04:50:27,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:50:27,936 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 62 proven. 345 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 04:50:27,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488732272] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:50:27,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:50:27,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 17] total 34 [2023-12-16 04:50:27,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635873717] [2023-12-16 04:50:27,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:50:27,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-16 04:50:27,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:27,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-16 04:50:27,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 04:50:27,941 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 35 states, 35 states have (on average 3.085714285714286) internal successors, (108), 34 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 04:50:28,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:28,042 INFO L93 Difference]: Finished difference Result 139 states and 169 transitions. [2023-12-16 04:50:28,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-16 04:50:28,043 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.085714285714286) internal successors, (108), 34 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-16 04:50:28,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:28,046 INFO L225 Difference]: With dead ends: 139 [2023-12-16 04:50:28,047 INFO L226 Difference]: Without dead ends: 119 [2023-12-16 04:50:28,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 04:50:28,048 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:28,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 57 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:50:28,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-16 04:50:28,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 116. [2023-12-16 04:50:28,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.0521739130434782) internal successors, (121), 115 states have internal predecessors, (121), 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) [2023-12-16 04:50:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2023-12-16 04:50:28,078 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 55 [2023-12-16 04:50:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:28,078 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2023-12-16 04:50:28,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.085714285714286) internal successors, (108), 34 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 04:50:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2023-12-16 04:50:28,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 04:50:28,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:28,081 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 32, 5, 1, 1, 1, 1, 1] [2023-12-16 04:50:28,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 04:50:28,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:28,296 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:28,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:28,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1394046550, now seen corresponding path program 5 times [2023-12-16 04:50:28,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:28,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177275101] [2023-12-16 04:50:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:28,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1998 backedges. 424 proven. 1552 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 04:50:29,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:29,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177275101] [2023-12-16 04:50:29,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177275101] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:50:29,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477853968] [2023-12-16 04:50:29,164 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-16 04:50:29,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:29,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:50:29,169 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) [2023-12-16 04:50:29,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:50:29,263 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2023-12-16 04:50:29,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 04:50:29,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-16 04:50:29,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:50:29,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1998 backedges. 424 proven. 1552 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 04:50:29,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:50:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1998 backedges. 424 proven. 1552 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 04:50:30,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477853968] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:50:30,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:50:30,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 52 [2023-12-16 04:50:30,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474748625] [2023-12-16 04:50:30,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:50:30,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-12-16 04:50:30,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:30,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-12-16 04:50:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2023-12-16 04:50:30,487 INFO L87 Difference]: Start difference. First operand 116 states and 121 transitions. Second operand has 53 states, 53 states have (on average 3.0754716981132075) internal successors, (163), 52 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) [2023-12-16 04:50:30,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:30,616 INFO L93 Difference]: Finished difference Result 193 states and 221 transitions. [2023-12-16 04:50:30,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-16 04:50:30,617 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.0754716981132075) internal successors, (163), 52 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) Word has length 115 [2023-12-16 04:50:30,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:30,618 INFO L225 Difference]: With dead ends: 193 [2023-12-16 04:50:30,618 INFO L226 Difference]: Without dead ends: 173 [2023-12-16 04:50:30,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 195 SyntacticMatches, 16 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2023-12-16 04:50:30,620 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:30,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 69 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:50:30,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-16 04:50:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2023-12-16 04:50:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 1.0355029585798816) internal successors, (175), 169 states have internal predecessors, (175), 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) [2023-12-16 04:50:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 175 transitions. [2023-12-16 04:50:30,630 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 175 transitions. Word has length 115 [2023-12-16 04:50:30,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:30,630 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 175 transitions. [2023-12-16 04:50:30,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.0754716981132075) internal successors, (163), 52 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) [2023-12-16 04:50:30,630 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 175 transitions. [2023-12-16 04:50:30,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 04:50:30,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:30,632 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 50, 5, 1, 1, 1, 1, 1] [2023-12-16 04:50:30,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 04:50:30,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:30,839 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:30,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:30,840 INFO L85 PathProgramCache]: Analyzing trace with hash 239577526, now seen corresponding path program 6 times [2023-12-16 04:50:30,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:30,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351084453] [2023-12-16 04:50:30,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:30,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:31,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 1416 proven. 57 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2023-12-16 04:50:31,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:31,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351084453] [2023-12-16 04:50:31,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351084453] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:50:31,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276293539] [2023-12-16 04:50:31,121 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-16 04:50:31,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:31,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:50:31,123 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) [2023-12-16 04:50:31,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 04:50:31,208 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 29 check-sat command(s) [2023-12-16 04:50:31,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 04:50:31,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 04:50:31,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:50:31,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 1416 proven. 57 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2023-12-16 04:50:31,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:50:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 1416 proven. 57 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2023-12-16 04:50:31,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276293539] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:50:31,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:50:31,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2023-12-16 04:50:31,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999769654] [2023-12-16 04:50:31,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:50:31,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:50:31,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:31,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:50:31,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:50:31,350 INFO L87 Difference]: Start difference. First operand 170 states and 175 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 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) [2023-12-16 04:50:31,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:31,383 INFO L93 Difference]: Finished difference Result 190 states and 200 transitions. [2023-12-16 04:50:31,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:50:31,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 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) Word has length 169 [2023-12-16 04:50:31,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:31,387 INFO L225 Difference]: With dead ends: 190 [2023-12-16 04:50:31,387 INFO L226 Difference]: Without dead ends: 186 [2023-12-16 04:50:31,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 333 SyntacticMatches, 10 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:50:31,389 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:31,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:50:31,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-12-16 04:50:31,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 173. [2023-12-16 04:50:31,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 1.0406976744186047) internal successors, (179), 172 states have internal predecessors, (179), 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) [2023-12-16 04:50:31,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 179 transitions. [2023-12-16 04:50:31,403 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 179 transitions. Word has length 169 [2023-12-16 04:50:31,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:31,404 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 179 transitions. [2023-12-16 04:50:31,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 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) [2023-12-16 04:50:31,404 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 179 transitions. [2023-12-16 04:50:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 04:50:31,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:31,406 INFO L195 NwaCegarLoop]: trace histogram [56, 55, 50, 6, 1, 1, 1, 1, 1] [2023-12-16 04:50:31,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 04:50:31,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:31,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:31,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:31,612 INFO L85 PathProgramCache]: Analyzing trace with hash 351693653, now seen corresponding path program 7 times [2023-12-16 04:50:31,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:31,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038966759] [2023-12-16 04:50:31,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:31,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:31,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 1681 proven. 86 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2023-12-16 04:50:31,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:31,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038966759] [2023-12-16 04:50:31,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038966759] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:50:31,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581740542] [2023-12-16 04:50:31,866 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-16 04:50:31,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:31,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:50:31,867 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) [2023-12-16 04:50:31,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 04:50:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:31,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-16 04:50:31,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:50:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 4518 proven. 86 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 04:50:33,183 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:50:34,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 4518 proven. 86 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 04:50:34,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581740542] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:50:34,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:50:34,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 52, 52] total 97 [2023-12-16 04:50:34,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67953271] [2023-12-16 04:50:34,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:50:34,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-12-16 04:50:34,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:34,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-12-16 04:50:34,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-12-16 04:50:34,352 INFO L87 Difference]: Start difference. First operand 173 states and 179 transitions. Second operand has 97 states, 97 states have (on average 3.1649484536082473) internal successors, (307), 97 states have internal predecessors, (307), 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) [2023-12-16 04:50:35,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:35,001 INFO L93 Difference]: Finished difference Result 1032 states and 1352 transitions. [2023-12-16 04:50:35,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-16 04:50:35,001 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 3.1649484536082473) internal successors, (307), 97 states have internal predecessors, (307), 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) Word has length 172 [2023-12-16 04:50:35,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:35,005 INFO L225 Difference]: With dead ends: 1032 [2023-12-16 04:50:35,005 INFO L226 Difference]: Without dead ends: 1028 [2023-12-16 04:50:35,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 250 SyntacticMatches, 12 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4964 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-12-16 04:50:35,009 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 16 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:35,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 236 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:50:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2023-12-16 04:50:35,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 308. [2023-12-16 04:50:35,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.1693811074918568) internal successors, (359), 307 states have internal predecessors, (359), 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) [2023-12-16 04:50:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 359 transitions. [2023-12-16 04:50:35,029 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 359 transitions. Word has length 172 [2023-12-16 04:50:35,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:35,030 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 359 transitions. [2023-12-16 04:50:35,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.1649484536082473) internal successors, (307), 97 states have internal predecessors, (307), 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) [2023-12-16 04:50:35,030 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 359 transitions. [2023-12-16 04:50:35,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-16 04:50:35,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:35,034 INFO L195 NwaCegarLoop]: trace histogram [101, 100, 51, 50, 1, 1, 1, 1, 1] [2023-12-16 04:50:35,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 04:50:35,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:35,240 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:35,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:35,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1656397546, now seen corresponding path program 8 times [2023-12-16 04:50:35,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:35,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126305745] [2023-12-16 04:50:35,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:35,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:40,877 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 0 proven. 15150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 04:50:40,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:40,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126305745] [2023-12-16 04:50:40,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126305745] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:50:40,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487824387] [2023-12-16 04:50:40,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 04:50:40,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:40,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:50:40,879 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) [2023-12-16 04:50:40,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 04:50:41,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 04:50:41,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 04:50:41,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 208 conjunts are in the unsatisfiable core [2023-12-16 04:50:41,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:50:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 0 proven. 15150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 04:50:44,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:50:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 0 proven. 15150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 04:50:44,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487824387] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:50:44,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:50:44,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 103, 103] total 154 [2023-12-16 04:50:44,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678784949] [2023-12-16 04:50:44,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:50:44,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2023-12-16 04:50:44,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:44,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2023-12-16 04:50:44,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2858, Invalid=21012, Unknown=0, NotChecked=0, Total=23870 [2023-12-16 04:50:44,501 INFO L87 Difference]: Start difference. First operand 308 states and 359 transitions. Second operand has 155 states, 155 states have (on average 2.9612903225806453) internal successors, (459), 154 states have internal predecessors, (459), 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) [2023-12-16 04:50:50,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:50,919 INFO L93 Difference]: Finished difference Result 4541 states and 5920 transitions. [2023-12-16 04:50:50,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2023-12-16 04:50:50,920 INFO L78 Accepts]: Start accepts. Automaton has has 155 states, 155 states have (on average 2.9612903225806453) internal successors, (459), 154 states have internal predecessors, (459), 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) Word has length 307 [2023-12-16 04:50:50,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:50,935 INFO L225 Difference]: With dead ends: 4541 [2023-12-16 04:50:50,935 INFO L226 Difference]: Without dead ends: 4381 [2023-12-16 04:50:50,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7652 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2863, Invalid=21317, Unknown=0, NotChecked=0, Total=24180 [2023-12-16 04:50:50,945 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 197 mSDsluCounter, 18375 mSDsCounter, 0 mSdLazyCounter, 19620 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 18626 SdHoareTripleChecker+Invalid, 19672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 19620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:50,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 18626 Invalid, 19672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 19620 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-16 04:50:50,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2023-12-16 04:50:51,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 4185. [2023-12-16 04:50:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4185 states, 4184 states have (on average 1.0241395793499044) internal successors, (4285), 4184 states have internal predecessors, (4285), 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) [2023-12-16 04:50:51,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4185 states to 4185 states and 4285 transitions. [2023-12-16 04:50:51,190 INFO L78 Accepts]: Start accepts. Automaton has 4185 states and 4285 transitions. Word has length 307 [2023-12-16 04:50:51,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:51,191 INFO L495 AbstractCegarLoop]: Abstraction has 4185 states and 4285 transitions. [2023-12-16 04:50:51,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 2.9612903225806453) internal successors, (459), 154 states have internal predecessors, (459), 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) [2023-12-16 04:50:51,191 INFO L276 IsEmpty]: Start isEmpty. Operand 4185 states and 4285 transitions. [2023-12-16 04:50:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-12-16 04:50:51,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:50:51,194 INFO L195 NwaCegarLoop]: trace histogram [102, 101, 52, 50, 1, 1, 1, 1, 1] [2023-12-16 04:50:51,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 04:50:51,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-16 04:50:51,407 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:50:51,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:50:51,408 INFO L85 PathProgramCache]: Analyzing trace with hash 473233397, now seen corresponding path program 9 times [2023-12-16 04:50:51,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:50:51,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403141798] [2023-12-16 04:50:51,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:50:51,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:50:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:50:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7403 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-12-16 04:50:54,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:50:54,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403141798] [2023-12-16 04:50:54,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403141798] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:50:54,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019741618] [2023-12-16 04:50:54,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 04:50:54,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:54,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:50:54,621 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) [2023-12-16 04:50:54,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 04:50:54,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 102 check-sat command(s) [2023-12-16 04:50:54,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 04:50:54,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 103 conjunts are in the unsatisfiable core [2023-12-16 04:50:54,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:50:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7401 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-12-16 04:50:55,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:50:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7401 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-12-16 04:50:57,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019741618] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:50:57,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 04:50:57,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 53, 53] total 54 [2023-12-16 04:50:57,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892752720] [2023-12-16 04:50:57,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 04:50:57,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-12-16 04:50:57,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:50:57,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-12-16 04:50:57,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=1486, Unknown=0, NotChecked=0, Total=2970 [2023-12-16 04:50:57,320 INFO L87 Difference]: Start difference. First operand 4185 states and 4285 transitions. Second operand has 55 states, 55 states have (on average 3.890909090909091) internal successors, (214), 54 states have internal predecessors, (214), 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) [2023-12-16 04:50:57,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:50:57,541 INFO L93 Difference]: Finished difference Result 4336 states and 4436 transitions. [2023-12-16 04:50:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-16 04:50:57,542 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 3.890909090909091) internal successors, (214), 54 states have internal predecessors, (214), 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) Word has length 310 [2023-12-16 04:50:57,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:50:57,543 INFO L225 Difference]: With dead ends: 4336 [2023-12-16 04:50:57,543 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 04:50:57,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 566 SyntacticMatches, 102 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3338 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1484, Invalid=1486, Unknown=0, NotChecked=0, Total=2970 [2023-12-16 04:50:57,548 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:50:57,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:50:57,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 04:50:57,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 04:50:57,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-12-16 04:50:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 04:50:57,549 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 310 [2023-12-16 04:50:57,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:50:57,549 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 04:50:57,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 3.890909090909091) internal successors, (214), 54 states have internal predecessors, (214), 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) [2023-12-16 04:50:57,549 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 04:50:57,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 04:50:57,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:50:57,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 04:50:57,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:50:57,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 04:50:59,466 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 04:50:59,466 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2023-12-16 04:50:59,466 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 28 36) no Hoare annotation was computed. [2023-12-16 04:50:59,466 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-16 04:50:59,466 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 04:50:59,468 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 36) the Hoare annotation is: (let ((.cse8 (= |ULTIMATE.start_main_~y~0#1| 13)) (.cse11 (= 23 |ULTIMATE.start_main_~y~0#1|)) (.cse1 (= 44 |ULTIMATE.start_main_~y~0#1|)) (.cse22 (= |ULTIMATE.start_main_~y~0#1| 8)) (.cse15 (= |ULTIMATE.start_main_~y~0#1| 26)) (.cse14 (= |ULTIMATE.start_main_~y~0#1| 24)) (.cse6 (= 35 |ULTIMATE.start_main_~y~0#1|)) (.cse31 (= 49 |ULTIMATE.start_main_~y~0#1|)) (.cse7 (= |ULTIMATE.start_main_~y~0#1| 10)) (.cse10 (= |ULTIMATE.start_main_~y~0#1| 37)) (.cse18 (= |ULTIMATE.start_main_~y~0#1| 25)) (.cse28 (= |ULTIMATE.start_main_~y~0#1| 11)) (.cse37 (= 3 |ULTIMATE.start_main_~y~0#1|)) (.cse13 (= |ULTIMATE.start_main_~y~0#1| 28)) (.cse12 (= 14 |ULTIMATE.start_main_~y~0#1|)) (.cse3 (= |ULTIMATE.start_main_~y~0#1| 39)) (.cse21 (= 40 |ULTIMATE.start_main_~y~0#1|)) (.cse20 (= 22 |ULTIMATE.start_main_~y~0#1|)) (.cse16 (= 7 |ULTIMATE.start_main_~y~0#1|)) (.cse30 (= 31 |ULTIMATE.start_main_~y~0#1|)) (.cse32 (= |ULTIMATE.start_main_~y~0#1| 27)) (.cse17 (= |ULTIMATE.start_main_~y~0#1| 12)) (.cse33 (= 47 |ULTIMATE.start_main_~y~0#1|)) (.cse0 (= 2 |ULTIMATE.start_main_~y~0#1|)) (.cse42 (= 32 |ULTIMATE.start_main_~y~0#1|)) (.cse40 (= |ULTIMATE.start_main_~y~0#1| 17)) (.cse43 (= 9 |ULTIMATE.start_main_~y~0#1|)) (.cse27 (= 46 |ULTIMATE.start_main_~y~0#1|)) (.cse41 (= 30 |ULTIMATE.start_main_~y~0#1|)) (.cse23 (= |ULTIMATE.start_main_~y~0#1| 34)) (.cse38 (= 5 |ULTIMATE.start_main_~y~0#1|)) (.cse36 (= 42 |ULTIMATE.start_main_~y~0#1|)) (.cse34 (= |ULTIMATE.start_main_~y~0#1| 18)) (.cse39 (= 41 |ULTIMATE.start_main_~y~0#1|)) (.cse47 (= |ULTIMATE.start_main_~y~0#1| 20)) (.cse26 (= |ULTIMATE.start_main_~y~0#1| 43)) (.cse19 (= 21 |ULTIMATE.start_main_~y~0#1|)) (.cse45 (= 29 |ULTIMATE.start_main_~y~0#1|)) (.cse35 (= |ULTIMATE.start_main_~y~0#1| 4)) (.cse29 (= 16 |ULTIMATE.start_main_~y~0#1|)) (.cse2 (= |ULTIMATE.start_main_~y~0#1| 15)) (.cse9 (= |ULTIMATE.start_main_~y~0#1| 1)) (.cse44 (= |ULTIMATE.start_main_~y~0#1| 0)) (.cse5 (= 6 |ULTIMATE.start_main_~y~0#1|)) (.cse24 (= 19 |ULTIMATE.start_main_~y~0#1|)) (.cse48 (= |ULTIMATE.start_main_~y~0#1| 45)) (.cse46 (= |ULTIMATE.start_main_~y~0#1| 48)) (.cse49 (= |ULTIMATE.start_main_~y~0#1| 38)) (.cse25 (= |ULTIMATE.start_main_~y~0#1| 36)) (.cse4 (= |ULTIMATE.start_main_~y~0#1| 33))) (or (and .cse0 (= 98 |ULTIMATE.start_main_~x~0#1|)) (and .cse1 (= 44 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 15) .cse2) (and .cse3 (= |ULTIMATE.start_main_~x~0#1| 39)) (and .cse4 (= |ULTIMATE.start_main_~x~0#1| 33)) (and .cse5 (= 6 |ULTIMATE.start_main_~x~0#1|)) (and .cse6 (= |ULTIMATE.start_main_~x~0#1| 65)) (and .cse7 (= |ULTIMATE.start_main_~x~0#1| 90)) (and (= 87 |ULTIMATE.start_main_~x~0#1|) .cse8) (and (= |ULTIMATE.start_main_~x~0#1| 1) .cse9) (and (= |ULTIMATE.start_main_~x~0#1| 63) .cse10) (and .cse11 (= 23 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 86) .cse12) (and .cse13 (= |ULTIMATE.start_main_~x~0#1| 28)) (and (= |ULTIMATE.start_main_~x~0#1| 24) .cse14) (and (= |ULTIMATE.start_main_~x~0#1| 13) .cse8) (and (= |ULTIMATE.start_main_~x~0#1| 26) .cse15) (and .cse16 (= 7 |ULTIMATE.start_main_~x~0#1|)) (and .cse11 (= 77 |ULTIMATE.start_main_~x~0#1|)) (and .cse17 (= 88 |ULTIMATE.start_main_~x~0#1|)) (and (= 56 |ULTIMATE.start_main_~x~0#1|) .cse1) (and (= |ULTIMATE.start_main_~x~0#1| 25) .cse18) (and .cse19 (= 21 |ULTIMATE.start_main_~x~0#1|)) (and .cse20 (= |ULTIMATE.start_main_~x~0#1| 78)) (and .cse21 (= 40 |ULTIMATE.start_main_~x~0#1|)) (and (= 92 |ULTIMATE.start_main_~x~0#1|) .cse22) (and (= |ULTIMATE.start_main_~x~0#1| 8) .cse22) (and (= |ULTIMATE.start_main_~x~0#1| 34) .cse23) (and .cse15 (= |ULTIMATE.start_main_~x~0#1| 74)) (and (= 19 |ULTIMATE.start_main_~x~0#1|) .cse24) (and (= |ULTIMATE.start_main_~x~0#1| 36) .cse25) (and .cse26 (= 57 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 54) .cse27) (and (= |ULTIMATE.start_main_~x~0#1| 11) .cse28) (and (= 16 |ULTIMATE.start_main_~x~0#1|) .cse29) (and (= 69 |ULTIMATE.start_main_~x~0#1|) .cse30) (and (= 49 |ULTIMATE.start_main_~x~0#1|) .cse31) (and (= 76 |ULTIMATE.start_main_~x~0#1|) .cse14) (and (= |ULTIMATE.start_main_~x~0#1| 73) .cse32) (and .cse33 (= 47 |ULTIMATE.start_main_~x~0#1|)) (and .cse6 (= 35 |ULTIMATE.start_main_~x~0#1|)) (and (= 51 |ULTIMATE.start_main_~x~0#1|) .cse31) (and .cse34 (= 82 |ULTIMATE.start_main_~x~0#1|)) (and .cse7 (= |ULTIMATE.start_main_~x~0#1| 10)) (and (= |ULTIMATE.start_main_~x~0#1| 96) .cse35) (and (= |ULTIMATE.start_main_~x~0#1| 58) .cse36) (and .cse37 (= 97 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 37) .cse10) (and (= |ULTIMATE.start_main_~x~0#1| 75) .cse18) (and (= 89 |ULTIMATE.start_main_~x~0#1|) .cse28) (and (= 3 |ULTIMATE.start_main_~x~0#1|) .cse37) (and (= 5 |ULTIMATE.start_main_~x~0#1|) .cse38) (and .cse39 (= 59 |ULTIMATE.start_main_~x~0#1|)) (and .cse40 (= |ULTIMATE.start_main_~x~0#1| 17)) (and .cse13 (= 72 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 70) .cse41) (and .cse12 (= 14 |ULTIMATE.start_main_~x~0#1|)) (and .cse3 (= |ULTIMATE.start_main_~x~0#1| 61)) (and .cse42 (= 32 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 60) .cse21) (and .cse20 (= 22 |ULTIMATE.start_main_~x~0#1|)) (and (= 91 |ULTIMATE.start_main_~x~0#1|) .cse43) (and .cse16 (= |ULTIMATE.start_main_~x~0#1| 93)) (and (= 31 |ULTIMATE.start_main_~x~0#1|) .cse30) (and .cse32 (= |ULTIMATE.start_main_~x~0#1| 27)) (and .cse44 (= |ULTIMATE.start_main_~x~0#1| 0)) (and .cse17 (= |ULTIMATE.start_main_~x~0#1| 12)) (and (= 71 |ULTIMATE.start_main_~x~0#1|) .cse45) (and .cse33 (= 53 |ULTIMATE.start_main_~x~0#1|)) (and (= 2 |ULTIMATE.start_main_~x~0#1|) .cse0) (and .cse42 (= 68 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 83) .cse40) (and (= 9 |ULTIMATE.start_main_~x~0#1|) .cse43) (and .cse27 (= 46 |ULTIMATE.start_main_~x~0#1|)) (and (= 30 |ULTIMATE.start_main_~x~0#1|) .cse41) (and .cse23 (= 66 |ULTIMATE.start_main_~x~0#1|)) (and .cse46 (= 52 |ULTIMATE.start_main_~x~0#1|)) (and .cse38 (= 95 |ULTIMATE.start_main_~x~0#1|)) (and .cse47 (= |ULTIMATE.start_main_~x~0#1| 20)) (and .cse36 (= 42 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 18) .cse34) (and .cse48 (= |ULTIMATE.start_main_~x~0#1| 55)) (and .cse49 (= 62 |ULTIMATE.start_main_~x~0#1|)) (and .cse39 (= 41 |ULTIMATE.start_main_~x~0#1|)) (and .cse47 (= |ULTIMATE.start_main_~x~0#1| 80)) (and .cse26 (= |ULTIMATE.start_main_~x~0#1| 43)) (and (= |ULTIMATE.start_main_~x~0#1| 79) .cse19) (and (= 29 |ULTIMATE.start_main_~x~0#1|) .cse45) (and .cse35 (= |ULTIMATE.start_main_~x~0#1| 4)) (and .cse29 (= 84 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 85) .cse2) (and (= |ULTIMATE.start_main_~x~0#1| 99) .cse9) (and (= |ULTIMATE.start_main_~x~0#1| 100) .cse44) (and (= |ULTIMATE.start_main_~y~0#1| 50) (= |ULTIMATE.start_main_~x~0#1| 50)) (and .cse5 (= 94 |ULTIMATE.start_main_~x~0#1|)) (and (= 81 |ULTIMATE.start_main_~x~0#1|) .cse24) (and .cse48 (= |ULTIMATE.start_main_~x~0#1| 45)) (and .cse46 (= |ULTIMATE.start_main_~x~0#1| 48)) (and (= |ULTIMATE.start_main_~x~0#1| 38) .cse49) (and (= 64 |ULTIMATE.start_main_~x~0#1|) .cse25) (and .cse4 (= 67 |ULTIMATE.start_main_~x~0#1|)))) [2023-12-16 04:50:59,468 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 36) no Hoare annotation was computed. [2023-12-16 04:50:59,468 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-16 04:50:59,468 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2023-12-16 04:50:59,468 INFO L899 garLoopResultBuilder]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2023-12-16 04:50:59,471 INFO L445 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1] [2023-12-16 04:50:59,473 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:50:59,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:50:59 BoogieIcfgContainer [2023-12-16 04:50:59,493 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:50:59,494 INFO L158 Benchmark]: Toolchain (without parser) took 35304.83ms. Allocated memory was 188.7MB in the beginning and 580.9MB in the end (delta: 392.2MB). Free memory was 137.5MB in the beginning and 344.0MB in the end (delta: -206.5MB). Peak memory consumption was 333.0MB. Max. memory is 8.0GB. [2023-12-16 04:50:59,494 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:50:59,494 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.88ms. Allocated memory is still 188.7MB. Free memory was 137.5MB in the beginning and 126.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 04:50:59,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.06ms. Allocated memory is still 188.7MB. Free memory was 126.5MB in the beginning and 124.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 04:50:59,495 INFO L158 Benchmark]: Boogie Preprocessor took 24.09ms. Allocated memory is still 188.7MB. Free memory was 124.9MB in the beginning and 123.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 04:50:59,495 INFO L158 Benchmark]: RCFGBuilder took 210.83ms. Allocated memory is still 188.7MB. Free memory was 123.3MB in the beginning and 113.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 04:50:59,495 INFO L158 Benchmark]: TraceAbstraction took 34823.10ms. Allocated memory was 188.7MB in the beginning and 580.9MB in the end (delta: 392.2MB). Free memory was 112.8MB in the beginning and 344.0MB in the end (delta: -231.2MB). Peak memory consumption was 308.8MB. Max. memory is 8.0GB. [2023-12-16 04:50:59,496 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 212.88ms. Allocated memory is still 188.7MB. Free memory was 137.5MB in the beginning and 126.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.06ms. Allocated memory is still 188.7MB. Free memory was 126.5MB in the beginning and 124.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.09ms. Allocated memory is still 188.7MB. Free memory was 124.9MB in the beginning and 123.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 210.83ms. Allocated memory is still 188.7MB. Free memory was 123.3MB in the beginning and 113.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 34823.10ms. Allocated memory was 188.7MB in the beginning and 580.9MB in the end (delta: 392.2MB). Free memory was 112.8MB in the beginning and 344.0MB in the end (delta: -231.2MB). Peak memory consumption was 308.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.8s, OverallIterations: 12, TraceHistogramMax: 102, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 244 mSDsluCounter, 19183 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18812 mSDsCounter, 195 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20827 IncrementalHoareTripleChecker+Invalid, 21022 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 195 mSolverCounterUnsat, 371 mSDtfsCounter, 20827 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2681 GetRequests, 2104 SyntacticMatches, 142 SemanticMatches, 435 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16695 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4185occurred in iteration=11, InterpolantAutomatonStates: 355, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 952 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 102 NumberOfFragments, 708 HoareAnnotationTreeSize, 1 FormulaSimplifications, 5508 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 1 FormulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 21.2s InterpolantComputationTime, 2401 NumberOfCodeBlocks, 2323 NumberOfCodeBlocksAsserted, 198 NumberOfCheckSat, 3562 ConstructedInterpolants, 0 QuantifiedInterpolants, 9502 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2747 ConjunctsInSsa, 449 ConjunctsInUnsatCore, 30 InterpolantComputations, 3 PerfectInterpolantSequences, 52950/126756 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2 == y) && (98 == x)) || ((44 == y) && (44 == x))) || ((x == 15) && (y == 15))) || ((y == 39) && (x == 39))) || ((y == 33) && (x == 33))) || ((6 == y) && (6 == x))) || ((35 == y) && (x == 65))) || ((y == 10) && (x == 90))) || ((87 == x) && (y == 13))) || ((x == 1) && (y == 1))) || ((x == 63) && (y == 37))) || ((23 == y) && (23 == x))) || ((x == 86) && (14 == y))) || ((y == 28) && (x == 28))) || ((x == 24) && (y == 24))) || ((x == 13) && (y == 13))) || ((x == 26) && (y == 26))) || ((7 == y) && (7 == x))) || ((23 == y) && (77 == x))) || ((y == 12) && (88 == x))) || ((56 == x) && (44 == y))) || ((x == 25) && (y == 25))) || ((21 == y) && (21 == x))) || ((22 == y) && (x == 78))) || ((40 == y) && (40 == x))) || ((92 == x) && (y == 8))) || ((x == 8) && (y == 8))) || ((x == 34) && (y == 34))) || ((y == 26) && (x == 74))) || ((19 == x) && (19 == y))) || ((x == 36) && (y == 36))) || ((y == 43) && (57 == x))) || ((x == 54) && (46 == y))) || ((x == 11) && (y == 11))) || ((16 == x) && (16 == y))) || ((69 == x) && (31 == y))) || ((49 == x) && (49 == y))) || ((76 == x) && (y == 24))) || ((x == 73) && (y == 27))) || ((47 == y) && (47 == x))) || ((35 == y) && (35 == x))) || ((51 == x) && (49 == y))) || ((y == 18) && (82 == x))) || ((y == 10) && (x == 10))) || ((x == 96) && (y == 4))) || ((x == 58) && (42 == y))) || ((3 == y) && (97 == x))) || ((x == 37) && (y == 37))) || ((x == 75) && (y == 25))) || ((89 == x) && (y == 11))) || ((3 == x) && (3 == y))) || ((5 == x) && (5 == y))) || ((41 == y) && (59 == x))) || ((y == 17) && (x == 17))) || ((y == 28) && (72 == x))) || ((x == 70) && (30 == y))) || ((14 == y) && (14 == x))) || ((y == 39) && (x == 61))) || ((32 == y) && (32 == x))) || ((x == 60) && (40 == y))) || ((22 == y) && (22 == x))) || ((91 == x) && (9 == y))) || ((7 == y) && (x == 93))) || ((31 == x) && (31 == y))) || ((y == 27) && (x == 27))) || ((y == 0) && (x == 0))) || ((y == 12) && (x == 12))) || ((71 == x) && (29 == y))) || ((47 == y) && (53 == x))) || ((2 == x) && (2 == y))) || ((32 == y) && (68 == x))) || ((x == 83) && (y == 17))) || ((9 == x) && (9 == y))) || ((46 == y) && (46 == x))) || ((30 == x) && (30 == y))) || ((y == 34) && (66 == x))) || ((y == 48) && (52 == x))) || ((5 == y) && (95 == x))) || ((y == 20) && (x == 20))) || ((42 == y) && (42 == x))) || ((x == 18) && (y == 18))) || ((y == 45) && (x == 55))) || ((y == 38) && (62 == x))) || ((41 == y) && (41 == x))) || ((y == 20) && (x == 80))) || ((y == 43) && (x == 43))) || ((x == 79) && (21 == y))) || ((29 == x) && (29 == y))) || ((y == 4) && (x == 4))) || ((16 == y) && (84 == x))) || ((x == 85) && (y == 15))) || ((x == 99) && (y == 1))) || ((x == 100) && (y == 0))) || ((y == 50) && (x == 50))) || ((6 == y) && (94 == x))) || ((81 == x) && (19 == y))) || ((y == 45) && (x == 45))) || ((y == 48) && (x == 48))) || ((x == 38) && (y == 38))) || ((64 == x) && (y == 36))) || ((y == 33) && (67 == x))) RESULT: Ultimate proved your program to be correct! [2023-12-16 04:50:59,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...