/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 03:33:09,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 03:33:09,521 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 03:33:09,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 03:33:09,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 03:33:09,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 03:33:09,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 03:33:09,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 03:33:09,551 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 03:33:09,551 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 03:33:09,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 03:33:09,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 03:33:09,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 03:33:09,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 03:33:09,552 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 03:33:09,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 03:33:09,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 03:33:09,553 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 03:33:09,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 03:33:09,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 03:33:09,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 03:33:09,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 03:33:09,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 03:33:09,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 03:33:09,560 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 03:33:09,560 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 03:33:09,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 03:33:09,561 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 03:33:09,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 03:33:09,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 03:33:09,562 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 03:33:09,562 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 03:33:09,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 03:33:09,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 03:33:09,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 03:33:09,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 03:33:09,563 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 03:33:09,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 03:33:09,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 03:33:09,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 03:33:09,563 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 03:33:09,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 03:33:09,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 03:33:09,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 03:33:09,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 03:33:09,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 03:33:09,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 03:33:09,784 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 03:33:09,784 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 03:33:09,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label28.c [2023-12-19 03:33:11,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 03:33:11,323 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 03:33:11,324 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label28.c [2023-12-19 03:33:11,356 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/234f4a193/fbe16c7ccf704f8d8a9535debe445839/FLAGf7718b1e1 [2023-12-19 03:33:11,367 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/234f4a193/fbe16c7ccf704f8d8a9535debe445839 [2023-12-19 03:33:11,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 03:33:11,370 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 03:33:11,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 03:33:11,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 03:33:11,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 03:33:11,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:11,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d382fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11, skipping insertion in model container [2023-12-19 03:33:11,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:11,415 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 03:33:11,613 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label28.c[6999,7012] [2023-12-19 03:33:11,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 03:33:11,805 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 03:33:11,849 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label28.c[6999,7012] [2023-12-19 03:33:11,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 03:33:11,923 INFO L206 MainTranslator]: Completed translation [2023-12-19 03:33:11,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11 WrapperNode [2023-12-19 03:33:11,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 03:33:11,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 03:33:11,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 03:33:11,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 03:33:11,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:11,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,058 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2023-12-19 03:33:12,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 03:33:12,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 03:33:12,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 03:33:12,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 03:33:12,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,079 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,124 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]. [2023-12-19 03:33:12,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 03:33:12,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 03:33:12,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 03:33:12,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 03:33:12,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (1/1) ... [2023-12-19 03:33:12,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 03:33:12,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:33:12,226 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) [2023-12-19 03:33:12,246 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 [2023-12-19 03:33:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 03:33:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 03:33:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 03:33:12,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 03:33:12,300 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 03:33:12,301 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 03:33:13,409 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 03:33:13,454 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 03:33:13,454 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 03:33:13,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:33:13 BoogieIcfgContainer [2023-12-19 03:33:13,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 03:33:13,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 03:33:13,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 03:33:13,458 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 03:33:13,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:33:11" (1/3) ... [2023-12-19 03:33:13,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601bae48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:33:13, skipping insertion in model container [2023-12-19 03:33:13,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:33:11" (2/3) ... [2023-12-19 03:33:13,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601bae48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:33:13, skipping insertion in model container [2023-12-19 03:33:13,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:33:13" (3/3) ... [2023-12-19 03:33:13,460 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label28.c [2023-12-19 03:33:13,494 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 03:33:13,494 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 03:33:13,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 03:33:13,531 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;@73c5c46e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 03:33:13,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 03:33:13,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 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) [2023-12-19 03:33:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-19 03:33:13,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:13,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:13,539 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:13,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:13,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1852641105, now seen corresponding path program 1 times [2023-12-19 03:33:13,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:13,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520372714] [2023-12-19 03:33:13,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:13,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:13,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:13,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:13,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520372714] [2023-12-19 03:33:13,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520372714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:13,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:13,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 03:33:13,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675680661] [2023-12-19 03:33:13,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:13,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 03:33:13,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:13,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 03:33:13,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 03:33:13,728 INFO L87 Difference]: Start difference. First operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 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 23.5) internal successors, (47), 2 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) [2023-12-19 03:33:13,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:13,767 INFO L93 Difference]: Finished difference Result 441 states and 839 transitions. [2023-12-19 03:33:13,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 03:33:13,773 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 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 47 [2023-12-19 03:33:13,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:13,780 INFO L225 Difference]: With dead ends: 441 [2023-12-19 03:33:13,780 INFO L226 Difference]: Without dead ends: 219 [2023-12-19 03:33:13,783 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 [2023-12-19 03:33:13,785 INFO L413 NwaCegarLoop]: 355 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, 355 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 [2023-12-19 03:33:13,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 03:33:13,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-19 03:33:13,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-12-19 03:33:13,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.628440366972477) internal successors, (355), 218 states have internal predecessors, (355), 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) [2023-12-19 03:33:13,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 355 transitions. [2023-12-19 03:33:13,818 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 355 transitions. Word has length 47 [2023-12-19 03:33:13,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:13,818 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 355 transitions. [2023-12-19 03:33:13,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 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) [2023-12-19 03:33:13,818 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 355 transitions. [2023-12-19 03:33:13,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-19 03:33:13,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:13,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:13,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 03:33:13,819 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:13,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:13,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1522204629, now seen corresponding path program 1 times [2023-12-19 03:33:13,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:13,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235480527] [2023-12-19 03:33:13,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:13,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:13,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:13,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:13,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235480527] [2023-12-19 03:33:13,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235480527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:13,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:13,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 03:33:13,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061012119] [2023-12-19 03:33:13,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:13,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:13,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:13,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:13,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:13,931 INFO L87 Difference]: Start difference. First operand 219 states and 355 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 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) [2023-12-19 03:33:14,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:14,598 INFO L93 Difference]: Finished difference Result 630 states and 1029 transitions. [2023-12-19 03:33:14,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:14,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 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 47 [2023-12-19 03:33:14,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:14,600 INFO L225 Difference]: With dead ends: 630 [2023-12-19 03:33:14,601 INFO L226 Difference]: Without dead ends: 412 [2023-12-19 03:33:14,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:14,602 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 160 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:14,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 144 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 03:33:14,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-12-19 03:33:14,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2023-12-19 03:33:14,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 409 states have (on average 1.4596577017114913) internal successors, (597), 409 states have internal predecessors, (597), 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) [2023-12-19 03:33:14,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 597 transitions. [2023-12-19 03:33:14,617 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 597 transitions. Word has length 47 [2023-12-19 03:33:14,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:14,618 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 597 transitions. [2023-12-19 03:33:14,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 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) [2023-12-19 03:33:14,618 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 597 transitions. [2023-12-19 03:33:14,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-19 03:33:14,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:14,620 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:14,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 03:33:14,621 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:14,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:14,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2035143027, now seen corresponding path program 1 times [2023-12-19 03:33:14,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:14,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49529926] [2023-12-19 03:33:14,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:14,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:14,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:14,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49529926] [2023-12-19 03:33:14,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49529926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:14,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:14,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 03:33:14,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584318535] [2023-12-19 03:33:14,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:14,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:14,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:14,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:14,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:14,759 INFO L87 Difference]: Start difference. First operand 410 states and 597 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:33:15,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:15,356 INFO L93 Difference]: Finished difference Result 1208 states and 1764 transitions. [2023-12-19 03:33:15,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:15,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-19 03:33:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:15,367 INFO L225 Difference]: With dead ends: 1208 [2023-12-19 03:33:15,367 INFO L226 Difference]: Without dead ends: 799 [2023-12-19 03:33:15,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:15,369 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:15,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 120 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 03:33:15,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-12-19 03:33:15,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 786. [2023-12-19 03:33:15,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.3847133757961783) internal successors, (1087), 785 states have internal predecessors, (1087), 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) [2023-12-19 03:33:15,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1087 transitions. [2023-12-19 03:33:15,390 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1087 transitions. Word has length 115 [2023-12-19 03:33:15,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:15,391 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1087 transitions. [2023-12-19 03:33:15,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:33:15,391 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1087 transitions. [2023-12-19 03:33:15,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 03:33:15,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:15,393 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:15,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 03:33:15,393 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:15,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:15,394 INFO L85 PathProgramCache]: Analyzing trace with hash -926690456, now seen corresponding path program 1 times [2023-12-19 03:33:15,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:15,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527237470] [2023-12-19 03:33:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:15,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:15,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:15,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527237470] [2023-12-19 03:33:15,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527237470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:15,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:15,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 03:33:15,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67559402] [2023-12-19 03:33:15,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:15,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:15,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:15,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:15,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:15,615 INFO L87 Difference]: Start difference. First operand 786 states and 1087 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2023-12-19 03:33:16,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:16,191 INFO L93 Difference]: Finished difference Result 1941 states and 2628 transitions. [2023-12-19 03:33:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:16,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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 117 [2023-12-19 03:33:16,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:16,199 INFO L225 Difference]: With dead ends: 1941 [2023-12-19 03:33:16,200 INFO L226 Difference]: Without dead ends: 1156 [2023-12-19 03:33:16,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:16,202 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:16,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 188 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 03:33:16,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2023-12-19 03:33:16,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1155. [2023-12-19 03:33:16,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1154 states have (on average 1.2772963604852687) internal successors, (1474), 1154 states have internal predecessors, (1474), 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) [2023-12-19 03:33:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1474 transitions. [2023-12-19 03:33:16,226 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1474 transitions. Word has length 117 [2023-12-19 03:33:16,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:16,226 INFO L495 AbstractCegarLoop]: Abstraction has 1155 states and 1474 transitions. [2023-12-19 03:33:16,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2023-12-19 03:33:16,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1474 transitions. [2023-12-19 03:33:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-19 03:33:16,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:16,233 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:16,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 03:33:16,233 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:16,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:16,234 INFO L85 PathProgramCache]: Analyzing trace with hash 989850833, now seen corresponding path program 1 times [2023-12-19 03:33:16,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:16,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613872905] [2023-12-19 03:33:16,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:16,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:16,454 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:16,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:16,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613872905] [2023-12-19 03:33:16,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613872905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:16,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:16,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:33:16,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427263990] [2023-12-19 03:33:16,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:16,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:16,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:16,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:16,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:16,458 INFO L87 Difference]: Start difference. First operand 1155 states and 1474 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-12-19 03:33:17,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:17,060 INFO L93 Difference]: Finished difference Result 2690 states and 3512 transitions. [2023-12-19 03:33:17,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:17,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 159 [2023-12-19 03:33:17,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:17,066 INFO L225 Difference]: With dead ends: 2690 [2023-12-19 03:33:17,066 INFO L226 Difference]: Without dead ends: 1720 [2023-12-19 03:33:17,067 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 [2023-12-19 03:33:17,072 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 158 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:17,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 333 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 03:33:17,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2023-12-19 03:33:17,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1527. [2023-12-19 03:33:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 1.2608125819134994) internal successors, (1924), 1526 states have internal predecessors, (1924), 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) [2023-12-19 03:33:17,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1924 transitions. [2023-12-19 03:33:17,102 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1924 transitions. Word has length 159 [2023-12-19 03:33:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:17,102 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 1924 transitions. [2023-12-19 03:33:17,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-12-19 03:33:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1924 transitions. [2023-12-19 03:33:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-19 03:33:17,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:17,104 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:17,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 03:33:17,105 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:17,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash 776745828, now seen corresponding path program 1 times [2023-12-19 03:33:17,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:17,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228307460] [2023-12-19 03:33:17,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:17,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:17,267 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-19 03:33:17,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:17,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228307460] [2023-12-19 03:33:17,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228307460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:17,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:17,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:33:17,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523775195] [2023-12-19 03:33:17,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:17,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:17,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:17,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:17,269 INFO L87 Difference]: Start difference. First operand 1527 states and 1924 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2023-12-19 03:33:17,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:17,808 INFO L93 Difference]: Finished difference Result 3612 states and 4594 transitions. [2023-12-19 03:33:17,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:17,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 229 [2023-12-19 03:33:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:17,815 INFO L225 Difference]: With dead ends: 3612 [2023-12-19 03:33:17,815 INFO L226 Difference]: Without dead ends: 2086 [2023-12-19 03:33:17,817 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 [2023-12-19 03:33:17,818 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 149 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:17,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 384 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 03:33:17,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2023-12-19 03:33:17,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 1895. [2023-12-19 03:33:17,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1895 states, 1894 states have (on average 1.2481520591341078) internal successors, (2364), 1894 states have internal predecessors, (2364), 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) [2023-12-19 03:33:17,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2364 transitions. [2023-12-19 03:33:17,849 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2364 transitions. Word has length 229 [2023-12-19 03:33:17,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:17,851 INFO L495 AbstractCegarLoop]: Abstraction has 1895 states and 2364 transitions. [2023-12-19 03:33:17,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2023-12-19 03:33:17,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2364 transitions. [2023-12-19 03:33:17,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-19 03:33:17,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:17,853 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:17,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 03:33:17,853 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:17,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:17,854 INFO L85 PathProgramCache]: Analyzing trace with hash 645953507, now seen corresponding path program 1 times [2023-12-19 03:33:17,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:17,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988317044] [2023-12-19 03:33:17,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:17,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:17,973 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-19 03:33:17,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:17,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988317044] [2023-12-19 03:33:17,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988317044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:17,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:17,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 03:33:17,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506789103] [2023-12-19 03:33:17,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:17,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:17,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:17,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:17,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:17,975 INFO L87 Difference]: Start difference. First operand 1895 states and 2364 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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) [2023-12-19 03:33:18,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:18,559 INFO L93 Difference]: Finished difference Result 4893 states and 6198 transitions. [2023-12-19 03:33:18,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:18,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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 240 [2023-12-19 03:33:18,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:18,567 INFO L225 Difference]: With dead ends: 4893 [2023-12-19 03:33:18,568 INFO L226 Difference]: Without dead ends: 2999 [2023-12-19 03:33:18,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:18,571 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:18,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 153 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 03:33:18,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2023-12-19 03:33:18,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2815. [2023-12-19 03:33:18,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2814 states have (on average 1.2054015636105189) internal successors, (3392), 2814 states have internal predecessors, (3392), 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) [2023-12-19 03:33:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3392 transitions. [2023-12-19 03:33:18,609 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3392 transitions. Word has length 240 [2023-12-19 03:33:18,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:18,609 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 3392 transitions. [2023-12-19 03:33:18,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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) [2023-12-19 03:33:18,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3392 transitions. [2023-12-19 03:33:18,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-19 03:33:18,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:18,612 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:18,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 03:33:18,612 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:18,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:18,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1404504761, now seen corresponding path program 1 times [2023-12-19 03:33:18,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:18,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435501558] [2023-12-19 03:33:18,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:18,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:18,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:18,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435501558] [2023-12-19 03:33:18,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435501558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:18,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:18,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:33:18,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323958717] [2023-12-19 03:33:18,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:18,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:18,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:18,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:18,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:18,810 INFO L87 Difference]: Start difference. First operand 2815 states and 3392 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-12-19 03:33:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:19,507 INFO L93 Difference]: Finished difference Result 6930 states and 8402 transitions. [2023-12-19 03:33:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:19,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 256 [2023-12-19 03:33:19,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:19,518 INFO L225 Difference]: With dead ends: 6930 [2023-12-19 03:33:19,518 INFO L226 Difference]: Without dead ends: 4116 [2023-12-19 03:33:19,521 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 [2023-12-19 03:33:19,523 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 122 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:19,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 154 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 03:33:19,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2023-12-19 03:33:19,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 4112. [2023-12-19 03:33:19,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4112 states, 4111 states have (on average 1.1943566042325469) internal successors, (4910), 4111 states have internal predecessors, (4910), 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) [2023-12-19 03:33:19,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 4910 transitions. [2023-12-19 03:33:19,584 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 4910 transitions. Word has length 256 [2023-12-19 03:33:19,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:19,584 INFO L495 AbstractCegarLoop]: Abstraction has 4112 states and 4910 transitions. [2023-12-19 03:33:19,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-12-19 03:33:19,585 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 4910 transitions. [2023-12-19 03:33:19,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-19 03:33:19,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:19,588 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:19,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 03:33:19,588 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:19,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:19,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1489914742, now seen corresponding path program 1 times [2023-12-19 03:33:19,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:19,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298917509] [2023-12-19 03:33:19,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:19,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:19,931 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:19,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:19,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298917509] [2023-12-19 03:33:19,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298917509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:19,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:19,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:33:19,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292724003] [2023-12-19 03:33:19,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:19,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 03:33:19,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:19,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 03:33:19,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:33:19,934 INFO L87 Difference]: Start difference. First operand 4112 states and 4910 transitions. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:33:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:21,018 INFO L93 Difference]: Finished difference Result 12100 states and 14578 transitions. [2023-12-19 03:33:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 03:33:21,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2023-12-19 03:33:21,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:21,046 INFO L225 Difference]: With dead ends: 12100 [2023-12-19 03:33:21,047 INFO L226 Difference]: Without dead ends: 7989 [2023-12-19 03:33:21,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:33:21,057 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 229 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:21,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 137 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 03:33:21,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7989 states. [2023-12-19 03:33:21,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7989 to 7984. [2023-12-19 03:33:21,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7984 states, 7983 states have (on average 1.189402480270575) internal successors, (9495), 7983 states have internal predecessors, (9495), 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) [2023-12-19 03:33:21,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7984 states to 7984 states and 9495 transitions. [2023-12-19 03:33:21,194 INFO L78 Accepts]: Start accepts. Automaton has 7984 states and 9495 transitions. Word has length 262 [2023-12-19 03:33:21,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:21,194 INFO L495 AbstractCegarLoop]: Abstraction has 7984 states and 9495 transitions. [2023-12-19 03:33:21,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:33:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 7984 states and 9495 transitions. [2023-12-19 03:33:21,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-12-19 03:33:21,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:21,199 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:21,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 03:33:21,199 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:21,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:21,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1101136451, now seen corresponding path program 1 times [2023-12-19 03:33:21,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:21,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607672030] [2023-12-19 03:33:21,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:21,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 144 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:21,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:21,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607672030] [2023-12-19 03:33:21,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607672030] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:33:21,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830117545] [2023-12-19 03:33:21,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:21,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:21,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:33:21,894 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) [2023-12-19 03:33:21,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 03:33:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:22,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 03:33:22,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:33:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-19 03:33:22,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:33:22,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830117545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:22,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:33:22,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-19 03:33:22,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585717834] [2023-12-19 03:33:22,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:22,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 03:33:22,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:22,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 03:33:22,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 03:33:22,461 INFO L87 Difference]: Start difference. First operand 7984 states and 9495 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 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) [2023-12-19 03:33:23,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:23,746 INFO L93 Difference]: Finished difference Result 20955 states and 24755 transitions. [2023-12-19 03:33:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 03:33:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 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 265 [2023-12-19 03:33:23,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:23,789 INFO L225 Difference]: With dead ends: 20955 [2023-12-19 03:33:23,789 INFO L226 Difference]: Without dead ends: 13340 [2023-12-19 03:33:23,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 03:33:23,800 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 275 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:23,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 175 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 03:33:23,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13340 states. [2023-12-19 03:33:23,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13340 to 10752. [2023-12-19 03:33:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10752 states, 10751 states have (on average 1.1776578922890895) internal successors, (12661), 10751 states have internal predecessors, (12661), 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) [2023-12-19 03:33:23,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10752 states to 10752 states and 12661 transitions. [2023-12-19 03:33:23,967 INFO L78 Accepts]: Start accepts. Automaton has 10752 states and 12661 transitions. Word has length 265 [2023-12-19 03:33:23,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:23,968 INFO L495 AbstractCegarLoop]: Abstraction has 10752 states and 12661 transitions. [2023-12-19 03:33:23,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 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) [2023-12-19 03:33:23,968 INFO L276 IsEmpty]: Start isEmpty. Operand 10752 states and 12661 transitions. [2023-12-19 03:33:23,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-19 03:33:23,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:23,973 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:23,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 03:33:24,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 03:33:24,180 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:24,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:24,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1628502395, now seen corresponding path program 1 times [2023-12-19 03:33:24,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:24,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834584194] [2023-12-19 03:33:24,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:24,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:24,319 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-19 03:33:24,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:24,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834584194] [2023-12-19 03:33:24,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834584194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:24,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:24,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:33:24,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281859205] [2023-12-19 03:33:24,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:24,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:24,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:24,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:24,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:24,321 INFO L87 Difference]: Start difference. First operand 10752 states and 12661 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2023-12-19 03:33:24,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:24,945 INFO L93 Difference]: Finished difference Result 21133 states and 24933 transitions. [2023-12-19 03:33:24,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:24,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 277 [2023-12-19 03:33:24,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:24,960 INFO L225 Difference]: With dead ends: 21133 [2023-12-19 03:33:24,960 INFO L226 Difference]: Without dead ends: 10750 [2023-12-19 03:33:24,970 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 [2023-12-19 03:33:24,971 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 187 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:24,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 301 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 03:33:24,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10750 states. [2023-12-19 03:33:25,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10750 to 10750. [2023-12-19 03:33:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10750 states, 10749 states have (on average 1.1469904177132757) internal successors, (12329), 10749 states have internal predecessors, (12329), 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) [2023-12-19 03:33:25,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10750 states to 10750 states and 12329 transitions. [2023-12-19 03:33:25,093 INFO L78 Accepts]: Start accepts. Automaton has 10750 states and 12329 transitions. Word has length 277 [2023-12-19 03:33:25,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:25,093 INFO L495 AbstractCegarLoop]: Abstraction has 10750 states and 12329 transitions. [2023-12-19 03:33:25,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2023-12-19 03:33:25,094 INFO L276 IsEmpty]: Start isEmpty. Operand 10750 states and 12329 transitions. [2023-12-19 03:33:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-19 03:33:25,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:25,098 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:25,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 03:33:25,098 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:25,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:25,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1565029386, now seen corresponding path program 1 times [2023-12-19 03:33:25,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:25,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173601609] [2023-12-19 03:33:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:25,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:25,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:25,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173601609] [2023-12-19 03:33:25,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173601609] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:33:25,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087355000] [2023-12-19 03:33:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:25,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:25,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:33:25,436 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) [2023-12-19 03:33:25,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 03:33:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:25,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 03:33:25,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:33:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:25,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:33:25,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087355000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:25,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:33:25,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 03:33:25,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529881311] [2023-12-19 03:33:25,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:25,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:25,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:25,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:25,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:33:25,785 INFO L87 Difference]: Start difference. First operand 10750 states and 12329 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2023-12-19 03:33:26,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:26,415 INFO L93 Difference]: Finished difference Result 22625 states and 26089 transitions. [2023-12-19 03:33:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:26,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 280 [2023-12-19 03:33:26,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:26,434 INFO L225 Difference]: With dead ends: 22625 [2023-12-19 03:33:26,434 INFO L226 Difference]: Without dead ends: 12244 [2023-12-19 03:33:26,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:33:26,446 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 99 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:26,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 323 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 03:33:26,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12244 states. [2023-12-19 03:33:26,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12244 to 12233. [2023-12-19 03:33:26,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12233 states, 12232 states have (on average 1.1472367560497057) internal successors, (14033), 12232 states have internal predecessors, (14033), 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) [2023-12-19 03:33:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12233 states to 12233 states and 14033 transitions. [2023-12-19 03:33:26,678 INFO L78 Accepts]: Start accepts. Automaton has 12233 states and 14033 transitions. Word has length 280 [2023-12-19 03:33:26,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:26,678 INFO L495 AbstractCegarLoop]: Abstraction has 12233 states and 14033 transitions. [2023-12-19 03:33:26,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2023-12-19 03:33:26,678 INFO L276 IsEmpty]: Start isEmpty. Operand 12233 states and 14033 transitions. [2023-12-19 03:33:26,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-19 03:33:26,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:26,694 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:26,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 03:33:26,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 03:33:26,900 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:26,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1052374930, now seen corresponding path program 1 times [2023-12-19 03:33:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:26,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712498397] [2023-12-19 03:33:26,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:26,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-19 03:33:27,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:27,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712498397] [2023-12-19 03:33:27,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712498397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:27,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:27,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:33:27,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432612116] [2023-12-19 03:33:27,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:27,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:27,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:27,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:27,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:27,077 INFO L87 Difference]: Start difference. First operand 12233 states and 14033 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-12-19 03:33:27,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:27,774 INFO L93 Difference]: Finished difference Result 27224 states and 31312 transitions. [2023-12-19 03:33:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:27,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 309 [2023-12-19 03:33:27,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:27,796 INFO L225 Difference]: With dead ends: 27224 [2023-12-19 03:33:27,796 INFO L226 Difference]: Without dead ends: 15360 [2023-12-19 03:33:27,808 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 [2023-12-19 03:33:27,809 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 152 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:27,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 360 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 03:33:27,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15360 states. [2023-12-19 03:33:28,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15360 to 14256. [2023-12-19 03:33:28,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14256 states, 14255 states have (on average 1.137144861452122) internal successors, (16210), 14255 states have internal predecessors, (16210), 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) [2023-12-19 03:33:28,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14256 states to 14256 states and 16210 transitions. [2023-12-19 03:33:28,176 INFO L78 Accepts]: Start accepts. Automaton has 14256 states and 16210 transitions. Word has length 309 [2023-12-19 03:33:28,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:28,177 INFO L495 AbstractCegarLoop]: Abstraction has 14256 states and 16210 transitions. [2023-12-19 03:33:28,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-12-19 03:33:28,177 INFO L276 IsEmpty]: Start isEmpty. Operand 14256 states and 16210 transitions. [2023-12-19 03:33:28,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-12-19 03:33:28,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:28,195 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:28,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 03:33:28,196 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:28,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:28,196 INFO L85 PathProgramCache]: Analyzing trace with hash -434072225, now seen corresponding path program 1 times [2023-12-19 03:33:28,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:28,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293302525] [2023-12-19 03:33:28,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:28,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 242 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:29,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:29,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293302525] [2023-12-19 03:33:29,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293302525] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:33:29,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250260690] [2023-12-19 03:33:29,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:29,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:29,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:33:29,908 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) [2023-12-19 03:33:29,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 03:33:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:30,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 03:33:30,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:33:30,232 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-19 03:33:30,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:33:30,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250260690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:30,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:33:30,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-19 03:33:30,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432550600] [2023-12-19 03:33:30,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:30,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:30,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:30,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:30,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-19 03:33:30,233 INFO L87 Difference]: Start difference. First operand 14256 states and 16210 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-12-19 03:33:30,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:30,797 INFO L93 Difference]: Finished difference Result 29624 states and 33705 transitions. [2023-12-19 03:33:30,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:30,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 334 [2023-12-19 03:33:30,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:30,817 INFO L225 Difference]: With dead ends: 29624 [2023-12-19 03:33:30,818 INFO L226 Difference]: Without dead ends: 15553 [2023-12-19 03:33:30,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-19 03:33:30,831 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 84 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:30,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 366 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 03:33:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15553 states. [2023-12-19 03:33:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15553 to 15182. [2023-12-19 03:33:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15182 states, 15181 states have (on average 1.132534088663461) internal successors, (17193), 15181 states have internal predecessors, (17193), 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) [2023-12-19 03:33:31,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15182 states to 15182 states and 17193 transitions. [2023-12-19 03:33:31,050 INFO L78 Accepts]: Start accepts. Automaton has 15182 states and 17193 transitions. Word has length 334 [2023-12-19 03:33:31,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:31,051 INFO L495 AbstractCegarLoop]: Abstraction has 15182 states and 17193 transitions. [2023-12-19 03:33:31,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-12-19 03:33:31,051 INFO L276 IsEmpty]: Start isEmpty. Operand 15182 states and 17193 transitions. [2023-12-19 03:33:31,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2023-12-19 03:33:31,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:31,058 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:31,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 03:33:31,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:31,264 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:31,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:31,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1961341026, now seen corresponding path program 1 times [2023-12-19 03:33:31,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:31,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314876840] [2023-12-19 03:33:31,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:31,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:31,482 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2023-12-19 03:33:31,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:31,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314876840] [2023-12-19 03:33:31,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314876840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:31,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:33:31,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:33:31,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123142078] [2023-12-19 03:33:31,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:31,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:31,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:31,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:31,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:33:31,484 INFO L87 Difference]: Start difference. First operand 15182 states and 17193 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:33:31,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:31,924 INFO L93 Difference]: Finished difference Result 17760 states and 20102 transitions. [2023-12-19 03:33:31,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:31,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 343 [2023-12-19 03:33:31,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:31,967 INFO L225 Difference]: With dead ends: 17760 [2023-12-19 03:33:31,967 INFO L226 Difference]: Without dead ends: 17758 [2023-12-19 03:33:31,992 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 [2023-12-19 03:33:31,993 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 170 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:31,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 148 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 03:33:32,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17758 states. [2023-12-19 03:33:32,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17758 to 16838. [2023-12-19 03:33:32,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16838 states, 16837 states have (on average 1.1343469739264715) internal successors, (19099), 16837 states have internal predecessors, (19099), 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) [2023-12-19 03:33:32,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16838 states to 16838 states and 19099 transitions. [2023-12-19 03:33:32,512 INFO L78 Accepts]: Start accepts. Automaton has 16838 states and 19099 transitions. Word has length 343 [2023-12-19 03:33:32,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:32,512 INFO L495 AbstractCegarLoop]: Abstraction has 16838 states and 19099 transitions. [2023-12-19 03:33:32,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:33:32,513 INFO L276 IsEmpty]: Start isEmpty. Operand 16838 states and 19099 transitions. [2023-12-19 03:33:32,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-12-19 03:33:32,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:32,536 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:32,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 03:33:32,537 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:32,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:32,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1054045732, now seen corresponding path program 1 times [2023-12-19 03:33:32,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:32,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746490271] [2023-12-19 03:33:32,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:32,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:33,377 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 252 proven. 51 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-12-19 03:33:33,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:33,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746490271] [2023-12-19 03:33:33,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746490271] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:33:33,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030280694] [2023-12-19 03:33:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:33,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:33,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:33:33,378 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) [2023-12-19 03:33:33,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 03:33:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:33,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 03:33:33,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:33:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-12-19 03:33:33,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:33:33,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030280694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:33,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:33:33,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 03:33:33,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069343535] [2023-12-19 03:33:33,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:33,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:33,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:33,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:33,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:33:33,690 INFO L87 Difference]: Start difference. First operand 16838 states and 19099 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-12-19 03:33:34,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:34,249 INFO L93 Difference]: Finished difference Result 33861 states and 38389 transitions. [2023-12-19 03:33:34,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:34,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 355 [2023-12-19 03:33:34,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:34,294 INFO L225 Difference]: With dead ends: 33861 [2023-12-19 03:33:34,295 INFO L226 Difference]: Without dead ends: 17024 [2023-12-19 03:33:34,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:33:34,324 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 90 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:34,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 167 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 03:33:34,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17024 states. [2023-12-19 03:33:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17024 to 15918. [2023-12-19 03:33:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15918 states, 15917 states have (on average 1.1276622479110385) internal successors, (17949), 15917 states have internal predecessors, (17949), 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) [2023-12-19 03:33:34,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15918 states to 15918 states and 17949 transitions. [2023-12-19 03:33:34,704 INFO L78 Accepts]: Start accepts. Automaton has 15918 states and 17949 transitions. Word has length 355 [2023-12-19 03:33:34,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:34,704 INFO L495 AbstractCegarLoop]: Abstraction has 15918 states and 17949 transitions. [2023-12-19 03:33:34,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-12-19 03:33:34,705 INFO L276 IsEmpty]: Start isEmpty. Operand 15918 states and 17949 transitions. [2023-12-19 03:33:34,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2023-12-19 03:33:34,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:34,713 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:34,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 03:33:34,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-19 03:33:34,914 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:34,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:34,914 INFO L85 PathProgramCache]: Analyzing trace with hash -940622702, now seen corresponding path program 1 times [2023-12-19 03:33:34,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:34,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961209617] [2023-12-19 03:33:34,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:34,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 281 proven. 58 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-19 03:33:35,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:35,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961209617] [2023-12-19 03:33:35,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961209617] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:33:35,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184236507] [2023-12-19 03:33:35,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:35,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:35,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:33:35,685 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) [2023-12-19 03:33:35,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 03:33:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:35,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 03:33:35,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:33:36,257 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 137 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-12-19 03:33:36,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 03:33:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 137 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-12-19 03:33:36,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184236507] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 03:33:36,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 03:33:36,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2023-12-19 03:33:36,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365319969] [2023-12-19 03:33:36,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 03:33:36,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 03:33:36,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:36,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 03:33:36,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-19 03:33:36,655 INFO L87 Difference]: Start difference. First operand 15918 states and 17949 transitions. Second operand has 9 states, 9 states have (on average 55.0) internal successors, (495), 8 states have internal predecessors, (495), 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) [2023-12-19 03:33:40,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:40,674 INFO L93 Difference]: Finished difference Result 41603 states and 46967 transitions. [2023-12-19 03:33:40,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 03:33:40,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 55.0) internal successors, (495), 8 states have internal predecessors, (495), 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 372 [2023-12-19 03:33:40,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:40,725 INFO L225 Difference]: With dead ends: 41603 [2023-12-19 03:33:40,725 INFO L226 Difference]: Without dead ends: 25502 [2023-12-19 03:33:40,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2023-12-19 03:33:40,739 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 1685 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 5491 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 6107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 5491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:40,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 197 Invalid, 6107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 5491 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-19 03:33:40,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25502 states. [2023-12-19 03:33:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25502 to 17381. [2023-12-19 03:33:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17381 states, 17380 states have (on average 1.1222094361334867) internal successors, (19504), 17380 states have internal predecessors, (19504), 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) [2023-12-19 03:33:41,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17381 states to 17381 states and 19504 transitions. [2023-12-19 03:33:41,075 INFO L78 Accepts]: Start accepts. Automaton has 17381 states and 19504 transitions. Word has length 372 [2023-12-19 03:33:41,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:41,076 INFO L495 AbstractCegarLoop]: Abstraction has 17381 states and 19504 transitions. [2023-12-19 03:33:41,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 55.0) internal successors, (495), 8 states have internal predecessors, (495), 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) [2023-12-19 03:33:41,076 INFO L276 IsEmpty]: Start isEmpty. Operand 17381 states and 19504 transitions. [2023-12-19 03:33:41,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-12-19 03:33:41,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:41,085 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:41,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 03:33:41,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-19 03:33:41,291 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:41,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:41,291 INFO L85 PathProgramCache]: Analyzing trace with hash -976829358, now seen corresponding path program 1 times [2023-12-19 03:33:41,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:41,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079151924] [2023-12-19 03:33:41,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:41,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 137 proven. 211 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-12-19 03:33:41,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:41,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079151924] [2023-12-19 03:33:41,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079151924] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:33:41,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825927042] [2023-12-19 03:33:41,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:41,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:41,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:33:41,670 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) [2023-12-19 03:33:41,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 03:33:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:41,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 03:33:41,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:33:41,975 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-12-19 03:33:41,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:33:41,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825927042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:41,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:33:41,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 03:33:41,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773809091] [2023-12-19 03:33:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:41,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:33:41,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:41,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:33:41,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:33:41,978 INFO L87 Difference]: Start difference. First operand 17381 states and 19504 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2023-12-19 03:33:42,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:42,606 INFO L93 Difference]: Finished difference Result 38474 states and 43322 transitions. [2023-12-19 03:33:42,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:33:42,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 392 [2023-12-19 03:33:42,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:42,631 INFO L225 Difference]: With dead ends: 38474 [2023-12-19 03:33:42,631 INFO L226 Difference]: Without dead ends: 21462 [2023-12-19 03:33:42,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:33:42,645 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 105 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:42,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 298 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 03:33:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21462 states. [2023-12-19 03:33:42,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21462 to 20717. [2023-12-19 03:33:42,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20717 states, 20716 states have (on average 1.1254585827379804) internal successors, (23315), 20716 states have internal predecessors, (23315), 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) [2023-12-19 03:33:42,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20717 states to 20717 states and 23315 transitions. [2023-12-19 03:33:42,883 INFO L78 Accepts]: Start accepts. Automaton has 20717 states and 23315 transitions. Word has length 392 [2023-12-19 03:33:42,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:42,884 INFO L495 AbstractCegarLoop]: Abstraction has 20717 states and 23315 transitions. [2023-12-19 03:33:42,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2023-12-19 03:33:42,884 INFO L276 IsEmpty]: Start isEmpty. Operand 20717 states and 23315 transitions. [2023-12-19 03:33:42,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2023-12-19 03:33:42,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:42,895 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:42,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 03:33:43,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-19 03:33:43,100 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:43,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1963339131, now seen corresponding path program 1 times [2023-12-19 03:33:43,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:43,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086181033] [2023-12-19 03:33:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:43,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 137 proven. 229 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-19 03:33:43,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:43,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086181033] [2023-12-19 03:33:43,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086181033] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:33:43,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185757510] [2023-12-19 03:33:43,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:43,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:43,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:33:43,437 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) [2023-12-19 03:33:43,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 03:33:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:43,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 03:33:43,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:33:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 242 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:44,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 03:33:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 242 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 03:33:46,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185757510] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 03:33:46,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 03:33:46,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2023-12-19 03:33:46,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852129711] [2023-12-19 03:33:46,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 03:33:46,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 03:33:46,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:46,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 03:33:46,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-19 03:33:46,678 INFO L87 Difference]: Start difference. First operand 20717 states and 23315 transitions. Second operand has 12 states, 12 states have (on average 80.33333333333333) internal successors, (964), 11 states have internal predecessors, (964), 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) [2023-12-19 03:33:52,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:52,280 INFO L93 Difference]: Finished difference Result 53648 states and 60178 transitions. [2023-12-19 03:33:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-19 03:33:52,281 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 80.33333333333333) internal successors, (964), 11 states have internal predecessors, (964), 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 414 [2023-12-19 03:33:52,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:52,324 INFO L225 Difference]: With dead ends: 53648 [2023-12-19 03:33:52,325 INFO L226 Difference]: Without dead ends: 33116 [2023-12-19 03:33:52,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 856 GetRequests, 820 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2023-12-19 03:33:52,351 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3817 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 6976 mSolverCounterSat, 1436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3817 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 8412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1436 IncrementalHoareTripleChecker+Valid, 6976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:52,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3817 Valid, 182 Invalid, 8412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1436 Valid, 6976 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-19 03:33:52,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33116 states. [2023-12-19 03:33:52,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33116 to 19227. [2023-12-19 03:33:52,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19227 states, 19226 states have (on average 1.0961718506189535) internal successors, (21075), 19226 states have internal predecessors, (21075), 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) [2023-12-19 03:33:52,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19227 states to 19227 states and 21075 transitions. [2023-12-19 03:33:52,595 INFO L78 Accepts]: Start accepts. Automaton has 19227 states and 21075 transitions. Word has length 414 [2023-12-19 03:33:52,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:52,595 INFO L495 AbstractCegarLoop]: Abstraction has 19227 states and 21075 transitions. [2023-12-19 03:33:52,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 80.33333333333333) internal successors, (964), 11 states have internal predecessors, (964), 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) [2023-12-19 03:33:52,595 INFO L276 IsEmpty]: Start isEmpty. Operand 19227 states and 21075 transitions. [2023-12-19 03:33:52,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2023-12-19 03:33:52,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:52,614 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:52,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-19 03:33:52,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:52,820 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:52,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1630197706, now seen corresponding path program 1 times [2023-12-19 03:33:52,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:52,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007272049] [2023-12-19 03:33:52,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:52,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:53,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 229 proven. 516 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2023-12-19 03:33:53,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:53,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007272049] [2023-12-19 03:33:53,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007272049] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:33:53,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279950664] [2023-12-19 03:33:53,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:53,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:53,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:33:53,349 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) [2023-12-19 03:33:53,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 03:33:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:53,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 03:33:53,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:33:53,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-12-19 03:33:53,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:33:53,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279950664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:33:53,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:33:53,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 03:33:53,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380077014] [2023-12-19 03:33:53,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:33:53,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 03:33:53,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:53,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 03:33:53,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 03:33:53,852 INFO L87 Difference]: Start difference. First operand 19227 states and 21075 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 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) [2023-12-19 03:33:54,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:33:54,685 INFO L93 Difference]: Finished difference Result 39007 states and 42738 transitions. [2023-12-19 03:33:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 03:33:54,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 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 551 [2023-12-19 03:33:54,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:33:54,705 INFO L225 Difference]: With dead ends: 39007 [2023-12-19 03:33:54,706 INFO L226 Difference]: Without dead ends: 19965 [2023-12-19 03:33:54,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 03:33:54,717 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 209 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 03:33:54,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 106 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 03:33:54,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19965 states. [2023-12-19 03:33:54,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19965 to 19779. [2023-12-19 03:33:54,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19779 states, 19778 states have (on average 1.09434725452523) internal successors, (21644), 19778 states have internal predecessors, (21644), 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) [2023-12-19 03:33:54,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19779 states to 19779 states and 21644 transitions. [2023-12-19 03:33:54,890 INFO L78 Accepts]: Start accepts. Automaton has 19779 states and 21644 transitions. Word has length 551 [2023-12-19 03:33:54,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:33:54,891 INFO L495 AbstractCegarLoop]: Abstraction has 19779 states and 21644 transitions. [2023-12-19 03:33:54,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 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) [2023-12-19 03:33:54,891 INFO L276 IsEmpty]: Start isEmpty. Operand 19779 states and 21644 transitions. [2023-12-19 03:33:54,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2023-12-19 03:33:54,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:33:54,910 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:33:54,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 03:33:55,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:55,116 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:33:55,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:33:55,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1910306941, now seen corresponding path program 1 times [2023-12-19 03:33:55,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:33:55,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660057036] [2023-12-19 03:33:55,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:55,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:33:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 183 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-12-19 03:33:55,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:33:55,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660057036] [2023-12-19 03:33:55,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660057036] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:33:55,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997904133] [2023-12-19 03:33:55,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:33:55,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:33:55,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:33:55,530 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) [2023-12-19 03:33:55,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 03:33:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:33:55,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 03:33:55,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:33:56,356 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 235 proven. 452 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-19 03:33:56,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 03:33:57,559 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 183 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-12-19 03:33:57,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997904133] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 03:33:57,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 03:33:57,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 9 [2023-12-19 03:33:57,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597259889] [2023-12-19 03:33:57,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 03:33:57,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 03:33:57,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:33:57,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 03:33:57,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-12-19 03:33:57,562 INFO L87 Difference]: Start difference. First operand 19779 states and 21644 transitions. Second operand has 10 states, 10 states have (on average 79.8) internal successors, (798), 9 states have internal predecessors, (798), 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) [2023-12-19 03:34:00,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:34:00,097 INFO L93 Difference]: Finished difference Result 59666 states and 64980 transitions. [2023-12-19 03:34:00,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 03:34:00,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 79.8) internal successors, (798), 9 states have internal predecessors, (798), 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 569 [2023-12-19 03:34:00,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:34:00,146 INFO L225 Difference]: With dead ends: 59666 [2023-12-19 03:34:00,146 INFO L226 Difference]: Without dead ends: 40256 [2023-12-19 03:34:00,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1140 GetRequests, 1132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-12-19 03:34:00,168 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1032 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 3742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 03:34:00,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 121 Invalid, 3742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 03:34:00,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40256 states. [2023-12-19 03:34:00,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40256 to 24765. [2023-12-19 03:34:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24765 states, 24764 states have (on average 1.0914230334356323) internal successors, (27028), 24764 states have internal predecessors, (27028), 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) [2023-12-19 03:34:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24765 states to 24765 states and 27028 transitions. [2023-12-19 03:34:00,508 INFO L78 Accepts]: Start accepts. Automaton has 24765 states and 27028 transitions. Word has length 569 [2023-12-19 03:34:00,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:34:00,509 INFO L495 AbstractCegarLoop]: Abstraction has 24765 states and 27028 transitions. [2023-12-19 03:34:00,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 79.8) internal successors, (798), 9 states have internal predecessors, (798), 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) [2023-12-19 03:34:00,509 INFO L276 IsEmpty]: Start isEmpty. Operand 24765 states and 27028 transitions. [2023-12-19 03:34:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2023-12-19 03:34:00,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:34:00,523 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:34:00,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 03:34:00,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:34:00,728 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:34:00,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:34:00,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1422350216, now seen corresponding path program 1 times [2023-12-19 03:34:00,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:34:00,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665984953] [2023-12-19 03:34:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:00,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:34:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:01,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 896 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-12-19 03:34:01,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:34:01,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665984953] [2023-12-19 03:34:01,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665984953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:34:01,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:34:01,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:34:01,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375272892] [2023-12-19 03:34:01,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:34:01,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 03:34:01,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:34:01,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 03:34:01,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:34:01,455 INFO L87 Difference]: Start difference. First operand 24765 states and 27028 transitions. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-12-19 03:34:02,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:34:02,495 INFO L93 Difference]: Finished difference Result 59678 states and 65003 transitions. [2023-12-19 03:34:02,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 03:34:02,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 3 states have internal predecessors, (363), 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 583 [2023-12-19 03:34:02,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:34:02,533 INFO L225 Difference]: With dead ends: 59678 [2023-12-19 03:34:02,534 INFO L226 Difference]: Without dead ends: 34358 [2023-12-19 03:34:02,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 03:34:02,554 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 203 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 03:34:02,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 61 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 03:34:02,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34358 states. [2023-12-19 03:34:02,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34358 to 28625. [2023-12-19 03:34:02,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28625 states, 28624 states have (on average 1.0883174958077138) internal successors, (31152), 28624 states have internal predecessors, (31152), 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) [2023-12-19 03:34:02,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28625 states to 28625 states and 31152 transitions. [2023-12-19 03:34:02,852 INFO L78 Accepts]: Start accepts. Automaton has 28625 states and 31152 transitions. Word has length 583 [2023-12-19 03:34:02,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:34:02,852 INFO L495 AbstractCegarLoop]: Abstraction has 28625 states and 31152 transitions. [2023-12-19 03:34:02,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-12-19 03:34:02,852 INFO L276 IsEmpty]: Start isEmpty. Operand 28625 states and 31152 transitions. [2023-12-19 03:34:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2023-12-19 03:34:02,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:34:02,893 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:34:02,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 03:34:02,894 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:34:02,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:34:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1726817024, now seen corresponding path program 1 times [2023-12-19 03:34:02,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:34:02,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723549721] [2023-12-19 03:34:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:02,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:34:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:04,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 873 proven. 172 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-12-19 03:34:04,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:34:04,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723549721] [2023-12-19 03:34:04,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723549721] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:34:04,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320712510] [2023-12-19 03:34:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:04,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:34:04,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:34:04,020 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 03:34:04,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 03:34:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:04,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 03:34:04,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:34:04,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 953 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-12-19 03:34:04,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:34:04,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320712510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:34:04,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:34:04,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-12-19 03:34:04,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559427503] [2023-12-19 03:34:04,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:34:04,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:34:04,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:34:04,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:34:04,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-19 03:34:04,346 INFO L87 Difference]: Start difference. First operand 28625 states and 31152 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2023-12-19 03:34:05,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:34:05,047 INFO L93 Difference]: Finished difference Result 57070 states and 62118 transitions. [2023-12-19 03:34:05,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:34:05,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 609 [2023-12-19 03:34:05,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:34:05,083 INFO L225 Difference]: With dead ends: 57070 [2023-12-19 03:34:05,083 INFO L226 Difference]: Without dead ends: 28630 [2023-12-19 03:34:05,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-19 03:34:05,108 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 67 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:34:05,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 325 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 03:34:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28630 states. [2023-12-19 03:34:05,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28630 to 28625. [2023-12-19 03:34:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28625 states, 28624 states have (on average 1.0762996087199552) internal successors, (30808), 28624 states have internal predecessors, (30808), 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) [2023-12-19 03:34:05,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28625 states to 28625 states and 30808 transitions. [2023-12-19 03:34:05,410 INFO L78 Accepts]: Start accepts. Automaton has 28625 states and 30808 transitions. Word has length 609 [2023-12-19 03:34:05,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:34:05,410 INFO L495 AbstractCegarLoop]: Abstraction has 28625 states and 30808 transitions. [2023-12-19 03:34:05,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2023-12-19 03:34:05,410 INFO L276 IsEmpty]: Start isEmpty. Operand 28625 states and 30808 transitions. [2023-12-19 03:34:05,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2023-12-19 03:34:05,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:34:05,470 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:34:05,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 03:34:05,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-12-19 03:34:05,671 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:34:05,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:34:05,671 INFO L85 PathProgramCache]: Analyzing trace with hash -601666934, now seen corresponding path program 1 times [2023-12-19 03:34:05,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:34:05,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730217775] [2023-12-19 03:34:05,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:05,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:34:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 844 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2023-12-19 03:34:06,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:34:06,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730217775] [2023-12-19 03:34:06,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730217775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:34:06,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:34:06,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:34:06,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028304858] [2023-12-19 03:34:06,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:34:06,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:34:06,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:34:06,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:34:06,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:34:06,415 INFO L87 Difference]: Start difference. First operand 28625 states and 30808 transitions. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2023-12-19 03:34:07,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:34:07,133 INFO L93 Difference]: Finished difference Result 58728 states and 63214 transitions. [2023-12-19 03:34:07,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:34:07,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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 625 [2023-12-19 03:34:07,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:34:07,171 INFO L225 Difference]: With dead ends: 58728 [2023-12-19 03:34:07,171 INFO L226 Difference]: Without dead ends: 32314 [2023-12-19 03:34:07,190 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 [2023-12-19 03:34:07,191 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 105 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:34:07,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 69 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 03:34:07,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32314 states. [2023-12-19 03:34:07,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32314 to 27879. [2023-12-19 03:34:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27879 states, 27878 states have (on average 1.073606428007748) internal successors, (29930), 27878 states have internal predecessors, (29930), 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) [2023-12-19 03:34:07,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27879 states to 27879 states and 29930 transitions. [2023-12-19 03:34:07,512 INFO L78 Accepts]: Start accepts. Automaton has 27879 states and 29930 transitions. Word has length 625 [2023-12-19 03:34:07,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:34:07,513 INFO L495 AbstractCegarLoop]: Abstraction has 27879 states and 29930 transitions. [2023-12-19 03:34:07,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2023-12-19 03:34:07,513 INFO L276 IsEmpty]: Start isEmpty. Operand 27879 states and 29930 transitions. [2023-12-19 03:34:07,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2023-12-19 03:34:07,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:34:07,535 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:34:07,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-19 03:34:07,535 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:34:07,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:34:07,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2056593939, now seen corresponding path program 1 times [2023-12-19 03:34:07,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:34:07,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395142232] [2023-12-19 03:34:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:07,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:34:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2123 backedges. 1462 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2023-12-19 03:34:07,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:34:07,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395142232] [2023-12-19 03:34:07,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395142232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:34:07,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:34:07,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:34:07,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922700905] [2023-12-19 03:34:07,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:34:07,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:34:07,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:34:07,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:34:07,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:34:07,929 INFO L87 Difference]: Start difference. First operand 27879 states and 29930 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2023-12-19 03:34:08,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:34:08,743 INFO L93 Difference]: Finished difference Result 58513 states and 62809 transitions. [2023-12-19 03:34:08,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:34:08,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 742 [2023-12-19 03:34:08,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:34:08,778 INFO L225 Difference]: With dead ends: 58513 [2023-12-19 03:34:08,779 INFO L226 Difference]: Without dead ends: 31003 [2023-12-19 03:34:08,799 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 [2023-12-19 03:34:08,800 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 121 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:34:08,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 311 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 03:34:08,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31003 states. [2023-12-19 03:34:09,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31003 to 24183. [2023-12-19 03:34:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 24182 states have (on average 1.0739392936895211) internal successors, (25970), 24182 states have internal predecessors, (25970), 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) [2023-12-19 03:34:09,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 25970 transitions. [2023-12-19 03:34:09,120 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 25970 transitions. Word has length 742 [2023-12-19 03:34:09,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:34:09,120 INFO L495 AbstractCegarLoop]: Abstraction has 24183 states and 25970 transitions. [2023-12-19 03:34:09,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2023-12-19 03:34:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 25970 transitions. [2023-12-19 03:34:09,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2023-12-19 03:34:09,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:34:09,138 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:34:09,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-19 03:34:09,139 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:34:09,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:34:09,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2050978614, now seen corresponding path program 1 times [2023-12-19 03:34:09,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:34:09,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116115301] [2023-12-19 03:34:09,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:09,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:34:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:09,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 1274 proven. 64 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-12-19 03:34:09,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:34:09,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116115301] [2023-12-19 03:34:09,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116115301] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:34:09,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181242973] [2023-12-19 03:34:09,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:09,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:34:09,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:34:09,715 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 03:34:09,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 03:34:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:10,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 03:34:10,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:34:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 1111 proven. 0 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2023-12-19 03:34:10,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:34:10,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181242973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:34:10,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:34:10,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 03:34:10,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112601113] [2023-12-19 03:34:10,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:34:10,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:34:10,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:34:10,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:34:10,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:34:10,143 INFO L87 Difference]: Start difference. First operand 24183 states and 25970 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2023-12-19 03:34:10,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:34:10,761 INFO L93 Difference]: Finished difference Result 48745 states and 52374 transitions. [2023-12-19 03:34:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:34:10,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 758 [2023-12-19 03:34:10,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:34:10,790 INFO L225 Difference]: With dead ends: 48745 [2023-12-19 03:34:10,790 INFO L226 Difference]: Without dead ends: 26403 [2023-12-19 03:34:10,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 757 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:34:10,803 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 121 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 03:34:10,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 57 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 03:34:10,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26403 states. [2023-12-19 03:34:11,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26403 to 24183. [2023-12-19 03:34:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 24182 states have (on average 1.0739392936895211) internal successors, (25970), 24182 states have internal predecessors, (25970), 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) [2023-12-19 03:34:11,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 25970 transitions. [2023-12-19 03:34:11,075 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 25970 transitions. Word has length 758 [2023-12-19 03:34:11,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:34:11,075 INFO L495 AbstractCegarLoop]: Abstraction has 24183 states and 25970 transitions. [2023-12-19 03:34:11,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2023-12-19 03:34:11,075 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 25970 transitions. [2023-12-19 03:34:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2023-12-19 03:34:11,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:34:11,098 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:34:11,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-19 03:34:11,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-19 03:34:11,304 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:34:11,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:34:11,304 INFO L85 PathProgramCache]: Analyzing trace with hash 638337189, now seen corresponding path program 1 times [2023-12-19 03:34:11,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:34:11,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517579750] [2023-12-19 03:34:11,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:11,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:34:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1273 proven. 64 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-12-19 03:34:11,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:34:11,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517579750] [2023-12-19 03:34:11,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517579750] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:34:11,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979828315] [2023-12-19 03:34:11,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:11,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:34:11,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:34:11,925 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 03:34:11,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 03:34:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:12,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 03:34:12,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:34:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1337 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-12-19 03:34:12,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 03:34:12,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979828315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:34:12,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 03:34:12,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 03:34:12,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015572737] [2023-12-19 03:34:12,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:34:12,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:34:12,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:34:12,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:34:12,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:34:12,395 INFO L87 Difference]: Start difference. First operand 24183 states and 25970 transitions. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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) [2023-12-19 03:34:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:34:12,971 INFO L93 Difference]: Finished difference Result 47271 states and 50756 transitions. [2023-12-19 03:34:12,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:34:12,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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 759 [2023-12-19 03:34:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:34:13,002 INFO L225 Difference]: With dead ends: 47271 [2023-12-19 03:34:13,002 INFO L226 Difference]: Without dead ends: 24929 [2023-12-19 03:34:13,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 03:34:13,023 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 77 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 03:34:13,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 346 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 03:34:13,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24929 states. [2023-12-19 03:34:13,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24929 to 21965. [2023-12-19 03:34:13,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21965 states, 21964 states have (on average 1.0735294117647058) internal successors, (23579), 21964 states have internal predecessors, (23579), 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) [2023-12-19 03:34:13,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21965 states to 21965 states and 23579 transitions. [2023-12-19 03:34:13,268 INFO L78 Accepts]: Start accepts. Automaton has 21965 states and 23579 transitions. Word has length 759 [2023-12-19 03:34:13,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:34:13,269 INFO L495 AbstractCegarLoop]: Abstraction has 21965 states and 23579 transitions. [2023-12-19 03:34:13,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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) [2023-12-19 03:34:13,269 INFO L276 IsEmpty]: Start isEmpty. Operand 21965 states and 23579 transitions. [2023-12-19 03:34:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2023-12-19 03:34:13,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:34:13,286 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:34:13,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 03:34:13,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-19 03:34:13,492 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:34:13,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:34:13,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1837297058, now seen corresponding path program 1 times [2023-12-19 03:34:13,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:34:13,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727352520] [2023-12-19 03:34:13,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:13,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:34:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1794 backedges. 1187 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2023-12-19 03:34:14,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:34:14,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727352520] [2023-12-19 03:34:14,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727352520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 03:34:14,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 03:34:14,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 03:34:14,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717769435] [2023-12-19 03:34:14,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 03:34:14,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 03:34:14,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:34:14,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 03:34:14,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 03:34:14,017 INFO L87 Difference]: Start difference. First operand 21965 states and 23579 transitions. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:34:14,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:34:14,772 INFO L93 Difference]: Finished difference Result 42828 states and 45874 transitions. [2023-12-19 03:34:14,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 03:34:14,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 800 [2023-12-19 03:34:14,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:34:14,809 INFO L225 Difference]: With dead ends: 42828 [2023-12-19 03:34:14,809 INFO L226 Difference]: Without dead ends: 22704 [2023-12-19 03:34:14,814 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 [2023-12-19 03:34:14,814 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 147 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 03:34:14,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 55 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 03:34:14,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22704 states. [2023-12-19 03:34:14,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22704 to 20491. [2023-12-19 03:34:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20491 states, 20490 states have (on average 1.0707662274280136) internal successors, (21940), 20490 states have internal predecessors, (21940), 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) [2023-12-19 03:34:15,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20491 states to 20491 states and 21940 transitions. [2023-12-19 03:34:15,019 INFO L78 Accepts]: Start accepts. Automaton has 20491 states and 21940 transitions. Word has length 800 [2023-12-19 03:34:15,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:34:15,020 INFO L495 AbstractCegarLoop]: Abstraction has 20491 states and 21940 transitions. [2023-12-19 03:34:15,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 03:34:15,020 INFO L276 IsEmpty]: Start isEmpty. Operand 20491 states and 21940 transitions. [2023-12-19 03:34:15,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2023-12-19 03:34:15,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 03:34:15,045 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:34:15,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-19 03:34:15,046 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 03:34:15,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 03:34:15,046 INFO L85 PathProgramCache]: Analyzing trace with hash 544710191, now seen corresponding path program 1 times [2023-12-19 03:34:15,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 03:34:15,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711378421] [2023-12-19 03:34:15,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:15,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 03:34:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:15,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 1250 proven. 96 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2023-12-19 03:34:15,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 03:34:15,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711378421] [2023-12-19 03:34:15,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711378421] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 03:34:15,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862029658] [2023-12-19 03:34:15,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 03:34:15,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 03:34:15,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 03:34:15,866 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 03:34:15,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 03:34:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 03:34:16,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 03:34:16,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 03:34:16,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 1250 proven. 96 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2023-12-19 03:34:16,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 03:34:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 1250 proven. 96 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2023-12-19 03:34:16,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862029658] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 03:34:16,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 03:34:16,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-12-19 03:34:16,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284148383] [2023-12-19 03:34:16,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 03:34:16,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 03:34:16,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 03:34:16,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 03:34:16,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-19 03:34:16,952 INFO L87 Difference]: Start difference. First operand 20491 states and 21940 transitions. Second operand has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 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) [2023-12-19 03:34:18,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 03:34:18,835 INFO L93 Difference]: Finished difference Result 45408 states and 48531 transitions. [2023-12-19 03:34:18,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 03:34:18,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 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 822 [2023-12-19 03:34:18,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 03:34:18,836 INFO L225 Difference]: With dead ends: 45408 [2023-12-19 03:34:18,836 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 03:34:18,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1647 GetRequests, 1639 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-19 03:34:18,852 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 982 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-19 03:34:18,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 97 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-19 03:34:18,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 03:34:18,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 03:34:18,852 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) [2023-12-19 03:34:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 03:34:18,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 822 [2023-12-19 03:34:18,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 03:34:18,853 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 03:34:18,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 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) [2023-12-19 03:34:18,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 03:34:18,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 03:34:18,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 03:34:18,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 03:34:19,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-19 03:34:19,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 03:35:02,880 WARN L293 SmtUtils]: Spent 43.78s on a formula simplification. DAG size of input: 1059 DAG size of output: 1694 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 03:35:11,974 WARN L293 SmtUtils]: Spent 9.08s on a formula simplification. DAG size of input: 1694 DAG size of output: 135 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-19 03:35:11,978 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2023-12-19 03:35:11,978 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,978 INFO L899 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2023-12-19 03:35:11,978 INFO L899 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,978 INFO L899 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,978 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,978 INFO L899 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,978 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,978 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,979 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,979 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,979 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,979 INFO L899 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,980 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,980 INFO L899 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,980 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,980 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,981 INFO L899 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,981 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,981 INFO L899 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,981 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2023-12-19 03:35:11,982 INFO L899 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L1038(lines 1038 1054) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,983 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L895 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse22 (= ~a25~0 11)) (.cse4 (= ~a3~0 1)) (.cse5 (= ~a4~0 1)) (.cse6 (= ~a8~0 15))) (let ((.cse23 (and .cse22 .cse4 .cse5 .cse6)) (.cse3 (= ~a25~0 12))) (let ((.cse8 (<= 260 ~a29~0)) (.cse9 (<= ~a29~0 275)) (.cse14 (<= 0 (+ 1254739 ~a23~0))) (.cse25 (or (< ~a29~0 141) (< 138 ~a23~0))) (.cse24 (<= ~a29~0 220)) (.cse15 (<= (+ 119992 ~a23~0) 0)) (.cse17 (<= ~a25~0 9)) (.cse21 (<= 0 (+ ~a23~0 577842))) (.cse29 (<= 0 (+ ~a23~0 437803))) (.cse10 (<= ~a4~0 0)) (.cse13 (not .cse5)) (.cse2 (<= ~a23~0 312)) (.cse11 (<= (+ ~a23~0 43) 0)) (.cse16 (<= 0 (+ ~a23~0 599772))) (.cse7 (<= ~a29~0 130)) (.cse26 (= ~a25~0 10)) (.cse19 (= ~a25~0 13)) (.cse12 (<= ~a29~0 274)) (.cse1 (<= 139 ~a23~0)) (.cse20 (<= 130 ~a29~0)) (.cse0 (or .cse23 (and .cse3 (or (< ~a23~0 307) (< ~a29~0 278)) .cse4 .cse5 .cse6))) (.cse28 (<= 246 ~a29~0)) (.cse18 (<= 0 (+ ~a23~0 42)))) (or (and .cse0 .cse1 .cse2) (and .cse3 (<= 437900 ~a23~0) .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse3 .cse4 .cse6 .cse10) (and .cse11 .cse3 .cse12 (<= 141 ~a29~0) .cse4 .cse13 .cse6 .cse14) (and (or (and .cse4 .cse15 .cse6 .cse14 .cse7) (and .cse16 .cse4 .cse2 .cse6 .cse7)) .cse17) (and .cse11 (<= 10250 ~a29~0) .cse4 .cse17 .cse6) (and .cse3 .cse4 .cse2 .cse6 .cse18 .cse7) (and .cse19 .cse11 .cse4 .cse5 .cse6 .cse20) (and .cse8 .cse21 .cse22 .cse4 .cse15 .cse6) (and .cse9 (or .cse23 (and .cse3 .cse4 .cse5 .cse6)) (<= 312 ~a23~0) .cse20) (and .cse4 .cse24 .cse2 .cse25 .cse6 .cse18 .cse26) (let ((.cse27 (+ (div ~a23~0 5) 553330))) (and .cse11 .cse22 .cse4 .cse13 .cse6 (or (not (= (mod ~a23~0 5) 0)) (< 0 .cse27)) (<= 0 .cse27) .cse7)) (and (or .cse23 (and .cse3 .cse16 .cse4 .cse5 .cse6)) .cse15 .cse20) (and .cse4 .cse6 .cse10 .cse26 .cse14 .cse7) (and .cse4 .cse24 .cse2 .cse25 .cse17 .cse6 .cse18) (and .cse11 .cse3 .cse12 .cse4 .cse13 .cse6 .cse28) (and .cse29 .cse22 .cse4 .cse24 .cse15 .cse13 .cse6) (and .cse19 (<= 306 ~a23~0) .cse4 .cse5 .cse6) (and .cse4 .cse5 .cse17 .cse6) (and .cse19 .cse4 .cse13 .cse2 .cse6 .cse18) (and .cse29 .cse22 .cse12 .cse4 .cse13 .cse2 .cse6 .cse28) (and .cse5 .cse17 .cse7) (and .cse11 .cse3 .cse21 .cse4 .cse13 .cse6) (and .cse11 (<= ~a25~0 10) .cse5) (and .cse3 .cse29 .cse12 .cse4 .cse6 .cse10) (and .cse19 .cse1 (<= ~a23~0 262) .cse4 .cse6) (and .cse3 .cse4 .cse13 .cse2 .cse6 .cse18) (and .cse11 .cse3 .cse16 .cse4 .cse5 .cse6 .cse7) (and .cse4 .cse5 .cse6 .cse26) (and .cse19 .cse12 .cse1 .cse4 .cse5 .cse6 .cse20) (and .cse0 .cse28 .cse18))))) [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,984 INFO L899 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,985 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,986 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,987 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,988 INFO L899 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,989 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,989 INFO L899 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,989 INFO L899 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,989 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,989 INFO L899 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,989 INFO L899 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,990 INFO L899 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2023-12-19 03:35:11,991 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2023-12-19 03:35:11,992 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,993 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2023-12-19 03:35:11,996 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 03:35:11,998 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 03:35:12,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:35:12 BoogieIcfgContainer [2023-12-19 03:35:12,026 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 03:35:12,030 INFO L158 Benchmark]: Toolchain (without parser) took 120660.30ms. Allocated memory was 186.6MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 134.8MB in the beginning and 930.2MB in the end (delta: -795.4MB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-19 03:35:12,031 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 03:35:12,031 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.03ms. Allocated memory is still 186.6MB. Free memory was 134.8MB in the beginning and 89.0MB in the end (delta: 45.8MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2023-12-19 03:35:12,031 INFO L158 Benchmark]: Boogie Procedure Inliner took 135.29ms. Allocated memory was 186.6MB in the beginning and 240.1MB in the end (delta: 53.5MB). Free memory was 89.0MB in the beginning and 197.0MB in the end (delta: -108.0MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. [2023-12-19 03:35:12,031 INFO L158 Benchmark]: Boogie Preprocessor took 142.41ms. Allocated memory is still 240.1MB. Free memory was 197.0MB in the beginning and 171.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-19 03:35:12,031 INFO L158 Benchmark]: RCFGBuilder took 1251.51ms. Allocated memory is still 240.1MB. Free memory was 171.8MB in the beginning and 97.3MB in the end (delta: 74.5MB). Peak memory consumption was 74.0MB. Max. memory is 8.0GB. [2023-12-19 03:35:12,031 INFO L158 Benchmark]: TraceAbstraction took 118570.12ms. Allocated memory was 240.1MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 96.8MB in the beginning and 930.2MB in the end (delta: -833.4MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-19 03:35:12,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 552.03ms. Allocated memory is still 186.6MB. Free memory was 134.8MB in the beginning and 89.0MB in the end (delta: 45.8MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 135.29ms. Allocated memory was 186.6MB in the beginning and 240.1MB in the end (delta: 53.5MB). Free memory was 89.0MB in the beginning and 197.0MB in the end (delta: -108.0MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 142.41ms. Allocated memory is still 240.1MB. Free memory was 197.0MB in the beginning and 171.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1251.51ms. Allocated memory is still 240.1MB. Free memory was 171.8MB in the beginning and 97.3MB in the end (delta: 74.5MB). Peak memory consumption was 74.0MB. Max. memory is 8.0GB. * TraceAbstraction took 118570.12ms. Allocated memory was 240.1MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 96.8MB in the beginning and 930.2MB in the end (delta: -833.4MB). Peak memory consumption was 1.8GB. 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: 160]: 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, 221 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 118.5s, OverallIterations: 29, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 32.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 52.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10922 SdHoareTripleChecker+Valid, 26.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10922 mSDsluCounter, 6033 SdHoareTripleChecker+Invalid, 22.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 945 mSDsCounter, 5188 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32852 IncrementalHoareTripleChecker+Invalid, 38040 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5188 mSolverCounterUnsat, 5088 mSDtfsCounter, 32852 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8781 GetRequests, 8652 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28625occurred in iteration=22, InterpolantAutomatonStates: 140, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.6s AutomataMinimizationTime, 29 MinimizatonAttempts, 69515 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 159 NumberOfFragments, 774 HoareAnnotationTreeSize, 1 FormulaSimplifications, 889793 FormulaSimplificationTreeSizeReduction, 43.8s HoareSimplificationTime, 1 FormulaSimplificationsInter, 44020 FormulaSimplificationTreeSizeReductionInter, 9.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 20.2s InterpolantComputationTime, 18111 NumberOfCodeBlocks, 18111 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 20242 ConstructedInterpolants, 0 QuantifiedInterpolants, 80242 SizeOfPredicates, 12 NumberOfNonLiveVariables, 8601 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 46 InterpolantComputations, 25 PerfectInterpolantSequences, 31665/35610 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: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((a25 == 11) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) || (((((a25 == 12) && ((a23 < 307) || (a29 < 278))) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) && (139 <= a23)) && (a23 <= 312)) || ((((((a25 == 12) && (437900 <= a23)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (a29 <= 130))) || ((((((260 <= a29) && (a29 <= 275)) && (a25 == 12)) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0))) || (((((((((a23 + 43) <= 0) && (a25 == 12)) && (a29 <= 274)) && (141 <= a29)) && (a3 == 1)) && !((a4 == 1))) && (a8 == 15)) && (0 <= (1254739 + a23)))) || (((((((a3 == 1) && ((119992 + a23) <= 0)) && (a8 == 15)) && (0 <= (1254739 + a23))) && (a29 <= 130)) || (((((0 <= (a23 + 599772)) && (a3 == 1)) && (a23 <= 312)) && (a8 == 15)) && (a29 <= 130))) && (a25 <= 9))) || ((((((a23 + 43) <= 0) && (10250 <= a29)) && (a3 == 1)) && (a25 <= 9)) && (a8 == 15))) || ((((((a25 == 12) && (a3 == 1)) && (a23 <= 312)) && (a8 == 15)) && (0 <= (a23 + 42))) && (a29 <= 130))) || ((((((a25 == 13) && ((a23 + 43) <= 0)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (130 <= a29))) || ((((((260 <= a29) && (0 <= (a23 + 577842))) && (a25 == 11)) && (a3 == 1)) && ((119992 + a23) <= 0)) && (a8 == 15))) || ((((a29 <= 275) && (((((a25 == 11) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) || ((((a25 == 12) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)))) && (312 <= a23)) && (130 <= a29))) || (((((((a3 == 1) && (a29 <= 220)) && (a23 <= 312)) && ((a29 < 141) || (138 < a23))) && (a8 == 15)) && (0 <= (a23 + 42))) && (a25 == 10))) || (((((((((a23 + 43) <= 0) && (a25 == 11)) && (a3 == 1)) && !((a4 == 1))) && (a8 == 15)) && (!(((a23 % 5) == 0)) || (0 < ((a23 / 5) + 553330)))) && (0 <= ((a23 / 5) + 553330))) && (a29 <= 130))) || (((((((a25 == 11) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) || (((((a25 == 12) && (0 <= (a23 + 599772))) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) && ((119992 + a23) <= 0)) && (130 <= a29))) || ((((((a3 == 1) && (a8 == 15)) && (a4 <= 0)) && (a25 == 10)) && (0 <= (1254739 + a23))) && (a29 <= 130))) || (((((((a3 == 1) && (a29 <= 220)) && (a23 <= 312)) && ((a29 < 141) || (138 < a23))) && (a25 <= 9)) && (a8 == 15)) && (0 <= (a23 + 42)))) || ((((((((a23 + 43) <= 0) && (a25 == 12)) && (a29 <= 274)) && (a3 == 1)) && !((a4 == 1))) && (a8 == 15)) && (246 <= a29))) || (((((((0 <= (a23 + 437803)) && (a25 == 11)) && (a3 == 1)) && (a29 <= 220)) && ((119992 + a23) <= 0)) && !((a4 == 1))) && (a8 == 15))) || (((((a25 == 13) && (306 <= a23)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || ((((a3 == 1) && (a4 == 1)) && (a25 <= 9)) && (a8 == 15))) || ((((((a25 == 13) && (a3 == 1)) && !((a4 == 1))) && (a23 <= 312)) && (a8 == 15)) && (0 <= (a23 + 42)))) || ((((((((0 <= (a23 + 437803)) && (a25 == 11)) && (a29 <= 274)) && (a3 == 1)) && !((a4 == 1))) && (a23 <= 312)) && (a8 == 15)) && (246 <= a29))) || (((a4 == 1) && (a25 <= 9)) && (a29 <= 130))) || (((((((a23 + 43) <= 0) && (a25 == 12)) && (0 <= (a23 + 577842))) && (a3 == 1)) && !((a4 == 1))) && (a8 == 15))) || ((((a23 + 43) <= 0) && (a25 <= 10)) && (a4 == 1))) || ((((((a25 == 12) && (0 <= (a23 + 437803))) && (a29 <= 274)) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0))) || (((((a25 == 13) && (139 <= a23)) && (a23 <= 262)) && (a3 == 1)) && (a8 == 15))) || ((((((a25 == 12) && (a3 == 1)) && !((a4 == 1))) && (a23 <= 312)) && (a8 == 15)) && (0 <= (a23 + 42)))) || ((((((((a23 + 43) <= 0) && (a25 == 12)) && (0 <= (a23 + 599772))) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (a29 <= 130))) || ((((a3 == 1) && (a4 == 1)) && (a8 == 15)) && (a25 == 10))) || (((((((a25 == 13) && (a29 <= 274)) && (139 <= a23)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (130 <= a29))) || (((((((a25 == 11) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) || (((((a25 == 12) && ((a23 < 307) || (a29 < 278))) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) && (246 <= a29)) && (0 <= (a23 + 42)))) RESULT: Ultimate proved your program to be correct! [2023-12-19 03:35:12,049 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...