/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:15:38,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:15:38,323 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:15:38,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:15:38,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:15:38,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:15:38,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:15:38,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:15:38,350 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:15:38,353 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:15:38,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:15:38,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:15:38,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:15:38,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:15:38,355 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:15:38,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:15:38,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:15:38,355 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:15:38,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:15:38,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:15:38,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:15:38,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:15:38,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:15:38,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:15:38,364 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:15:38,365 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:15:38,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:15:38,365 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:15:38,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:15:38,365 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:15:38,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:15:38,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:15:38,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:15:38,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:15:38,367 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:15:38,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:15:38,367 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:15:38,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:15:38,367 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:15:38,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:15:38,367 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:15:38,368 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:15:38,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:15:38,368 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:15:38,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:15:38,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:15:38,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:15:38,655 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:15:38,656 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:15:38,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label10.c [2023-12-16 01:15:39,996 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:15:40,190 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:15:40,190 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label10.c [2023-12-16 01:15:40,210 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac5c6515/49cf1c3ce50143f49a08b91572b5fed6/FLAGbfa674ea1 [2023-12-16 01:15:40,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac5c6515/49cf1c3ce50143f49a08b91572b5fed6 [2023-12-16 01:15:40,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:15:40,226 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:15:40,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:15:40,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:15:40,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:15:40,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b59e588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40, skipping insertion in model container [2023-12-16 01:15:40,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,270 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:15:40,483 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/Problem02_label10.c[20766,20779] [2023-12-16 01:15:40,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:15:40,506 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:15:40,561 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/Problem02_label10.c[20766,20779] [2023-12-16 01:15:40,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:15:40,582 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:15:40,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40 WrapperNode [2023-12-16 01:15:40,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:15:40,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:15:40,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:15:40,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:15:40,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,639 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 669 [2023-12-16 01:15:40,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:15:40,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:15:40,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:15:40,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:15:40,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,680 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,700 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:15:40,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,737 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:15:40,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:15:40,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:15:40,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:15:40,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (1/1) ... [2023-12-16 01:15:40,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:15:40,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:15:40,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 01:15:40,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 01:15:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:15:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:15:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:15:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:15:40,928 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:15:40,940 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:15:42,251 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:15:42,298 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:15:42,298 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 01:15:42,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:15:42 BoogieIcfgContainer [2023-12-16 01:15:42,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:15:42,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:15:42,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:15:42,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:15:42,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:15:40" (1/3) ... [2023-12-16 01:15:42,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c37cf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:15:42, skipping insertion in model container [2023-12-16 01:15:42,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:40" (2/3) ... [2023-12-16 01:15:42,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c37cf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:15:42, skipping insertion in model container [2023-12-16 01:15:42,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:15:42" (3/3) ... [2023-12-16 01:15:42,304 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label10.c [2023-12-16 01:15:42,314 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:15:42,314 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 01:15:42,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:15:42,387 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;@45ff6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:15:42,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 01:15:42,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:42,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 01:15:42,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:42,416 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:42,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:42,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash 47984901, now seen corresponding path program 1 times [2023-12-16 01:15:42,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:42,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120414486] [2023-12-16 01:15:42,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:42,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:42,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:42,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:42,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120414486] [2023-12-16 01:15:42,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120414486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:42,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:42,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:15:42,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278681338] [2023-12-16 01:15:42,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:42,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 01:15:42,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:42,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 01:15:42,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:15:42,774 INFO L87 Difference]: Start difference. First operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 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 67.0) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:42,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:42,815 INFO L93 Difference]: Finished difference Result 329 states and 625 transitions. [2023-12-16 01:15:42,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 01:15:42,817 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 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 134 [2023-12-16 01:15:42,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:42,824 INFO L225 Difference]: With dead ends: 329 [2023-12-16 01:15:42,825 INFO L226 Difference]: Without dead ends: 163 [2023-12-16 01:15:42,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:15:42,832 INFO L413 NwaCegarLoop]: 248 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, 248 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:42,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 01:15:42,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-16 01:15:42,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-12-16 01:15:42,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5308641975308641) internal successors, (248), 162 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 248 transitions. [2023-12-16 01:15:42,870 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 248 transitions. Word has length 134 [2023-12-16 01:15:42,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:42,871 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 248 transitions. [2023-12-16 01:15:42,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:42,871 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 248 transitions. [2023-12-16 01:15:42,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 01:15:42,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:42,875 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:42,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:15:42,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:42,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:42,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2119655307, now seen corresponding path program 1 times [2023-12-16 01:15:42,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:42,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974613335] [2023-12-16 01:15:42,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:42,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:43,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:43,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974613335] [2023-12-16 01:15:43,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974613335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:43,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:43,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:15:43,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310510937] [2023-12-16 01:15:43,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:43,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:43,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:43,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:43,065 INFO L87 Difference]: Start difference. First operand 163 states and 248 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:43,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:43,649 INFO L93 Difference]: Finished difference Result 471 states and 717 transitions. [2023-12-16 01:15:43,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:43,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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 134 [2023-12-16 01:15:43,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:43,656 INFO L225 Difference]: With dead ends: 471 [2023-12-16 01:15:43,656 INFO L226 Difference]: Without dead ends: 309 [2023-12-16 01:15:43,658 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 [2023-12-16 01:15:43,659 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 65 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:43,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 79 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:15:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-12-16 01:15:43,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2023-12-16 01:15:43,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.4383116883116882) internal successors, (443), 308 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:43,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 443 transitions. [2023-12-16 01:15:43,700 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 443 transitions. Word has length 134 [2023-12-16 01:15:43,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:43,702 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 443 transitions. [2023-12-16 01:15:43,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:43,703 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 443 transitions. [2023-12-16 01:15:43,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 01:15:43,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:43,706 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-16 01:15:43,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:15:43,707 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:43,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:43,708 INFO L85 PathProgramCache]: Analyzing trace with hash 251904106, now seen corresponding path program 1 times [2023-12-16 01:15:43,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:43,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762019843] [2023-12-16 01:15:43,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:43,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:44,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:44,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762019843] [2023-12-16 01:15:44,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762019843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:44,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:44,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:15:44,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068480683] [2023-12-16 01:15:44,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:44,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:44,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:44,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:44,092 INFO L87 Difference]: Start difference. First operand 309 states and 443 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:44,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:44,714 INFO L93 Difference]: Finished difference Result 912 states and 1313 transitions. [2023-12-16 01:15:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:44,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-12-16 01:15:44,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:44,716 INFO L225 Difference]: With dead ends: 912 [2023-12-16 01:15:44,716 INFO L226 Difference]: Without dead ends: 604 [2023-12-16 01:15:44,717 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 [2023-12-16 01:15:44,717 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 158 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:44,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 95 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:15:44,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2023-12-16 01:15:44,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 597. [2023-12-16 01:15:44,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 596 states have (on average 1.3976510067114094) internal successors, (833), 596 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:44,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 833 transitions. [2023-12-16 01:15:44,736 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 833 transitions. Word has length 152 [2023-12-16 01:15:44,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:44,740 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 833 transitions. [2023-12-16 01:15:44,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:44,745 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 833 transitions. [2023-12-16 01:15:44,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 01:15:44,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:44,747 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-16 01:15:44,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:15:44,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:44,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:44,747 INFO L85 PathProgramCache]: Analyzing trace with hash -537329286, now seen corresponding path program 1 times [2023-12-16 01:15:44,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:44,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116617185] [2023-12-16 01:15:44,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:44,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:44,843 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:44,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:44,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116617185] [2023-12-16 01:15:44,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116617185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:44,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:44,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:15:44,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061306126] [2023-12-16 01:15:44,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:44,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:44,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:44,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:44,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:44,845 INFO L87 Difference]: Start difference. First operand 597 states and 833 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:45,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:45,040 INFO L93 Difference]: Finished difference Result 1180 states and 1649 transitions. [2023-12-16 01:15:45,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:45,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2023-12-16 01:15:45,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:45,042 INFO L225 Difference]: With dead ends: 1180 [2023-12-16 01:15:45,043 INFO L226 Difference]: Without dead ends: 584 [2023-12-16 01:15:45,045 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 [2023-12-16 01:15:45,052 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 195 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:45,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 21 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 01:15:45,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-16 01:15:45,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2023-12-16 01:15:45,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 583 states have (on average 1.2984562607204118) internal successors, (757), 583 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:45,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 757 transitions. [2023-12-16 01:15:45,068 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 757 transitions. Word has length 153 [2023-12-16 01:15:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:45,068 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 757 transitions. [2023-12-16 01:15:45,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 757 transitions. [2023-12-16 01:15:45,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-16 01:15:45,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:45,070 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 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] [2023-12-16 01:15:45,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:15:45,070 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:45,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:45,071 INFO L85 PathProgramCache]: Analyzing trace with hash -605580449, now seen corresponding path program 1 times [2023-12-16 01:15:45,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:45,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962086818] [2023-12-16 01:15:45,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:45,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:45,259 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 01:15:45,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:45,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962086818] [2023-12-16 01:15:45,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962086818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:45,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:45,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:15:45,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579876720] [2023-12-16 01:15:45,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:45,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:45,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:45,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:45,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:45,261 INFO L87 Difference]: Start difference. First operand 584 states and 757 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:45,546 INFO L93 Difference]: Finished difference Result 1447 states and 1853 transitions. [2023-12-16 01:15:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:45,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 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 156 [2023-12-16 01:15:45,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:45,550 INFO L225 Difference]: With dead ends: 1447 [2023-12-16 01:15:45,550 INFO L226 Difference]: Without dead ends: 864 [2023-12-16 01:15:45,551 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 [2023-12-16 01:15:45,551 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 139 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:45,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 93 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:15:45,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2023-12-16 01:15:45,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2023-12-16 01:15:45,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 1.2132097334878331) internal successors, (1047), 863 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:45,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1047 transitions. [2023-12-16 01:15:45,563 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1047 transitions. Word has length 156 [2023-12-16 01:15:45,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:45,563 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1047 transitions. [2023-12-16 01:15:45,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:45,563 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1047 transitions. [2023-12-16 01:15:45,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 01:15:45,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:45,565 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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, 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] [2023-12-16 01:15:45,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:15:45,565 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:45,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:45,566 INFO L85 PathProgramCache]: Analyzing trace with hash 825915300, now seen corresponding path program 1 times [2023-12-16 01:15:45,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:45,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263283819] [2023-12-16 01:15:45,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:45,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 01:15:45,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:45,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263283819] [2023-12-16 01:15:45,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263283819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:45,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:45,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:15:45,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326390020] [2023-12-16 01:15:45,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:45,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:45,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:45,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:45,689 INFO L87 Difference]: Start difference. First operand 864 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:45,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:45,996 INFO L93 Difference]: Finished difference Result 2009 states and 2477 transitions. [2023-12-16 01:15:45,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:45,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 161 [2023-12-16 01:15:45,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:46,000 INFO L225 Difference]: With dead ends: 2009 [2023-12-16 01:15:46,000 INFO L226 Difference]: Without dead ends: 1286 [2023-12-16 01:15:46,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:46,002 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 143 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:46,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 220 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:15:46,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2023-12-16 01:15:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1284. [2023-12-16 01:15:46,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 1283 states have (on average 1.170693686671863) internal successors, (1502), 1283 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1502 transitions. [2023-12-16 01:15:46,020 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1502 transitions. Word has length 161 [2023-12-16 01:15:46,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:46,021 INFO L495 AbstractCegarLoop]: Abstraction has 1284 states and 1502 transitions. [2023-12-16 01:15:46,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1502 transitions. [2023-12-16 01:15:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 01:15:46,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:46,023 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 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] [2023-12-16 01:15:46,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:15:46,023 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:46,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:46,024 INFO L85 PathProgramCache]: Analyzing trace with hash 475353662, now seen corresponding path program 1 times [2023-12-16 01:15:46,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:46,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119125277] [2023-12-16 01:15:46,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:46,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:46,108 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:46,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:46,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119125277] [2023-12-16 01:15:46,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119125277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:46,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:46,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:15:46,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485361695] [2023-12-16 01:15:46,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:46,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:46,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:46,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:46,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:46,110 INFO L87 Difference]: Start difference. First operand 1284 states and 1502 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:46,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:46,399 INFO L93 Difference]: Finished difference Result 2704 states and 3179 transitions. [2023-12-16 01:15:46,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:46,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2023-12-16 01:15:46,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:46,403 INFO L225 Difference]: With dead ends: 2704 [2023-12-16 01:15:46,403 INFO L226 Difference]: Without dead ends: 1561 [2023-12-16 01:15:46,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:46,405 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 141 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:46,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 53 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:15:46,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2023-12-16 01:15:46,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1421. [2023-12-16 01:15:46,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1420 states have (on average 1.15) internal successors, (1633), 1420 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:46,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1633 transitions. [2023-12-16 01:15:46,422 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1633 transitions. Word has length 163 [2023-12-16 01:15:46,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:46,423 INFO L495 AbstractCegarLoop]: Abstraction has 1421 states and 1633 transitions. [2023-12-16 01:15:46,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:46,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1633 transitions. [2023-12-16 01:15:46,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-16 01:15:46,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:46,425 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-16 01:15:46,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:15:46,425 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:46,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:46,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1477751288, now seen corresponding path program 1 times [2023-12-16 01:15:46,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:46,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9272441] [2023-12-16 01:15:46,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:46,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:46,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:46,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9272441] [2023-12-16 01:15:46,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9272441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:46,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:46,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:15:46,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094485862] [2023-12-16 01:15:46,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:46,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:46,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:46,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:46,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:46,484 INFO L87 Difference]: Start difference. First operand 1421 states and 1633 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:47,021 INFO L93 Difference]: Finished difference Result 2561 states and 2972 transitions. [2023-12-16 01:15:47,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:47,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 167 [2023-12-16 01:15:47,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:47,024 INFO L225 Difference]: With dead ends: 2561 [2023-12-16 01:15:47,024 INFO L226 Difference]: Without dead ends: 1139 [2023-12-16 01:15:47,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:47,027 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 138 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:47,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 221 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:15:47,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-16 01:15:47,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1136. [2023-12-16 01:15:47,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 1.1295154185022027) internal successors, (1282), 1135 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:47,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1282 transitions. [2023-12-16 01:15:47,049 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1282 transitions. Word has length 167 [2023-12-16 01:15:47,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:47,049 INFO L495 AbstractCegarLoop]: Abstraction has 1136 states and 1282 transitions. [2023-12-16 01:15:47,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:47,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1282 transitions. [2023-12-16 01:15:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-16 01:15:47,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:47,052 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:47,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:15:47,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:47,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:47,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1770121184, now seen corresponding path program 1 times [2023-12-16 01:15:47,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:47,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067265793] [2023-12-16 01:15:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:47,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 01:15:47,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:47,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067265793] [2023-12-16 01:15:47,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067265793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:47,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:47,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:15:47,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160895869] [2023-12-16 01:15:47,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:47,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:47,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:47,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:47,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:47,190 INFO L87 Difference]: Start difference. First operand 1136 states and 1282 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) [2023-12-16 01:15:47,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:47,692 INFO L93 Difference]: Finished difference Result 2131 states and 2418 transitions. [2023-12-16 01:15:47,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:47,692 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 185 [2023-12-16 01:15:47,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:47,695 INFO L225 Difference]: With dead ends: 2131 [2023-12-16 01:15:47,695 INFO L226 Difference]: Without dead ends: 1136 [2023-12-16 01:15:47,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:47,697 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 110 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:47,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 218 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:15:47,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-12-16 01:15:47,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1136. [2023-12-16 01:15:47,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 1.1162995594713656) internal successors, (1267), 1135 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1267 transitions. [2023-12-16 01:15:47,709 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1267 transitions. Word has length 185 [2023-12-16 01:15:47,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:47,710 INFO L495 AbstractCegarLoop]: Abstraction has 1136 states and 1267 transitions. [2023-12-16 01:15:47,710 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) [2023-12-16 01:15:47,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1267 transitions. [2023-12-16 01:15:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-16 01:15:47,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:47,712 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-16 01:15:47,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:15:47,712 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:47,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:47,713 INFO L85 PathProgramCache]: Analyzing trace with hash -679216882, now seen corresponding path program 1 times [2023-12-16 01:15:47,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:47,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493442673] [2023-12-16 01:15:47,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:47,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 01:15:47,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:47,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493442673] [2023-12-16 01:15:47,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493442673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:47,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:47,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:15:47,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144539056] [2023-12-16 01:15:47,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:47,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:47,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:47,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:47,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:47,994 INFO L87 Difference]: Start difference. First operand 1136 states and 1267 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:48,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:48,540 INFO L93 Difference]: Finished difference Result 2553 states and 2895 transitions. [2023-12-16 01:15:48,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:48,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 206 [2023-12-16 01:15:48,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:48,544 INFO L225 Difference]: With dead ends: 2553 [2023-12-16 01:15:48,544 INFO L226 Difference]: Without dead ends: 1558 [2023-12-16 01:15:48,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:48,545 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 129 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:48,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 186 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:15:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2023-12-16 01:15:48,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1557. [2023-12-16 01:15:48,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1556 states have (on average 1.1201799485861184) internal successors, (1743), 1556 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:48,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 1743 transitions. [2023-12-16 01:15:48,564 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 1743 transitions. Word has length 206 [2023-12-16 01:15:48,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:48,564 INFO L495 AbstractCegarLoop]: Abstraction has 1557 states and 1743 transitions. [2023-12-16 01:15:48,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:48,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 1743 transitions. [2023-12-16 01:15:48,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-16 01:15:48,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:48,568 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-16 01:15:48,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 01:15:48,568 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:48,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:48,568 INFO L85 PathProgramCache]: Analyzing trace with hash 722851693, now seen corresponding path program 1 times [2023-12-16 01:15:48,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:48,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719536993] [2023-12-16 01:15:48,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:48,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:48,680 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 01:15:48,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:48,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719536993] [2023-12-16 01:15:48,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719536993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:48,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:48,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:15:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880230014] [2023-12-16 01:15:48,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:48,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:48,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:48,682 INFO L87 Difference]: Start difference. First operand 1557 states and 1743 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:48,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:48,949 INFO L93 Difference]: Finished difference Result 3672 states and 4129 transitions. [2023-12-16 01:15:48,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:48,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 219 [2023-12-16 01:15:48,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:48,956 INFO L225 Difference]: With dead ends: 3672 [2023-12-16 01:15:48,956 INFO L226 Difference]: Without dead ends: 2256 [2023-12-16 01:15:48,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:48,959 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 146 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:48,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 33 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 01:15:48,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2023-12-16 01:15:48,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 1696. [2023-12-16 01:15:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.1315634218289086) internal successors, (1918), 1695 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:48,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 1918 transitions. [2023-12-16 01:15:48,982 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 1918 transitions. Word has length 219 [2023-12-16 01:15:48,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:48,983 INFO L495 AbstractCegarLoop]: Abstraction has 1696 states and 1918 transitions. [2023-12-16 01:15:48,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:48,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 1918 transitions. [2023-12-16 01:15:48,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-16 01:15:48,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:48,986 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:48,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:15:48,987 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:48,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:48,987 INFO L85 PathProgramCache]: Analyzing trace with hash -140818224, now seen corresponding path program 1 times [2023-12-16 01:15:48,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:48,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557236900] [2023-12-16 01:15:48,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:48,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:49,091 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 01:15:49,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:49,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557236900] [2023-12-16 01:15:49,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557236900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:49,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:49,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:15:49,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143302200] [2023-12-16 01:15:49,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:49,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:49,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:49,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:49,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:49,093 INFO L87 Difference]: Start difference. First operand 1696 states and 1918 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:49,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:49,971 INFO L93 Difference]: Finished difference Result 3811 states and 4302 transitions. [2023-12-16 01:15:49,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:49,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 221 [2023-12-16 01:15:49,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:49,974 INFO L225 Difference]: With dead ends: 3811 [2023-12-16 01:15:49,974 INFO L226 Difference]: Without dead ends: 1132 [2023-12-16 01:15:49,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:49,976 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 96 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:49,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 226 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:15:49,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-12-16 01:15:50,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1132. [2023-12-16 01:15:50,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1131 states have (on average 1.0557029177718833) internal successors, (1194), 1131 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:50,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1194 transitions. [2023-12-16 01:15:50,010 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1194 transitions. Word has length 221 [2023-12-16 01:15:50,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:50,010 INFO L495 AbstractCegarLoop]: Abstraction has 1132 states and 1194 transitions. [2023-12-16 01:15:50,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:50,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1194 transitions. [2023-12-16 01:15:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-16 01:15:50,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:50,013 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:50,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 01:15:50,013 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:50,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2101429598, now seen corresponding path program 1 times [2023-12-16 01:15:50,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:50,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760896398] [2023-12-16 01:15:50,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:50,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:50,473 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:50,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:50,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760896398] [2023-12-16 01:15:50,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760896398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:50,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:50,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:15:50,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681221799] [2023-12-16 01:15:50,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:50,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:15:50,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:50,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:15:50,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:15:50,475 INFO L87 Difference]: Start difference. First operand 1132 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:51,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:51,084 INFO L93 Difference]: Finished difference Result 2125 states and 2248 transitions. [2023-12-16 01:15:51,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:15:51,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 232 [2023-12-16 01:15:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:51,088 INFO L225 Difference]: With dead ends: 2125 [2023-12-16 01:15:51,088 INFO L226 Difference]: Without dead ends: 1134 [2023-12-16 01:15:51,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:15:51,089 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 256 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:51,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 210 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:15:51,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2023-12-16 01:15:51,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1132. [2023-12-16 01:15:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1131 states have (on average 1.0530503978779842) internal successors, (1191), 1131 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1191 transitions. [2023-12-16 01:15:51,101 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1191 transitions. Word has length 232 [2023-12-16 01:15:51,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:51,101 INFO L495 AbstractCegarLoop]: Abstraction has 1132 states and 1191 transitions. [2023-12-16 01:15:51,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1191 transitions. [2023-12-16 01:15:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-12-16 01:15:51,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:51,103 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 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] [2023-12-16 01:15:51,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:15:51,104 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:51,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:51,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1676755148, now seen corresponding path program 1 times [2023-12-16 01:15:51,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:51,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217624385] [2023-12-16 01:15:51,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:51,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:51,433 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 93 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:51,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:51,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217624385] [2023-12-16 01:15:51,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217624385] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:15:51,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740119440] [2023-12-16 01:15:51,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:51,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:15:51,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:15:51,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:15:51,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:15:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:51,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:15:51,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:15:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-12-16 01:15:51,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:15:51,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740119440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:51,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:15:51,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-12-16 01:15:51,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534337848] [2023-12-16 01:15:51,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:51,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:51,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:51,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:51,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:15:51,860 INFO L87 Difference]: Start difference. First operand 1132 states and 1191 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:51,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:51,980 INFO L93 Difference]: Finished difference Result 2120 states and 2237 transitions. [2023-12-16 01:15:51,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:51,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 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 264 [2023-12-16 01:15:51,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:51,981 INFO L225 Difference]: With dead ends: 2120 [2023-12-16 01:15:51,981 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 01:15:51,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:15:51,983 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:51,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 11 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:15:51,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 01:15:51,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 01:15:51,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 01:15:51,984 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 264 [2023-12-16 01:15:51,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:51,984 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 01:15:51,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:15:51,984 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 01:15:51,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 01:15:51,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 01:15:51,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 01:15:52,196 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,SelfDestructingSolverStorable13 [2023-12-16 01:15:52,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2023-12-16 01:15:52,603 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2023-12-16 01:15:52,604 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2023-12-16 01:15:52,605 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 587) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2023-12-16 01:15:52,606 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2023-12-16 01:15:52,607 INFO L899 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2023-12-16 01:15:52,608 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2023-12-16 01:15:52,608 INFO L899 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,608 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,608 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2023-12-16 01:15:52,608 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L610(lines 610 627) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2023-12-16 01:15:52,611 INFO L899 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse0 (= ~a11~0 1))) (let ((.cse1 (= ~a28~0 10)) (.cse9 (<= 9 ~a28~0)) (.cse2 (<= ~a17~0 8)) (.cse5 (= ~a19~0 1)) (.cse3 (= ~a25~0 0)) (.cse7 (= ~a17~0 8)) (.cse4 (= ~a25~0 1)) (.cse8 (<= ~a28~0 10)) (.cse6 (not .cse0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse2 .cse5 (<= ~a28~0 7)) (and .cse1 .cse2 .cse5) (and (<= 11 ~a28~0) .cse4 .cse2 .cse5 .cse6) (and .cse7 .cse8 .cse3) (and .cse9 .cse4 .cse0 .cse2 .cse8) (and .cse9 .cse4 .cse2 .cse8 .cse5) (and .cse9 .cse0 .cse2 .cse8 .cse5 .cse3) (and .cse7 .cse4 .cse8 .cse6)))) [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2023-12-16 01:15:52,612 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2023-12-16 01:15:52,613 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2023-12-16 01:15:52,615 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:52,616 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:15:52,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:15:52 BoogieIcfgContainer [2023-12-16 01:15:52,645 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:15:52,645 INFO L158 Benchmark]: Toolchain (without parser) took 12418.86ms. Allocated memory was 244.3MB in the beginning and 377.5MB in the end (delta: 133.2MB). Free memory was 189.8MB in the beginning and 233.8MB in the end (delta: -44.1MB). Peak memory consumption was 89.6MB. Max. memory is 8.0GB. [2023-12-16 01:15:52,645 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 164.6MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:15:52,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.75ms. Allocated memory is still 244.3MB. Free memory was 189.3MB in the beginning and 162.5MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 01:15:52,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.68ms. Allocated memory is still 244.3MB. Free memory was 162.5MB in the beginning and 156.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 01:15:52,646 INFO L158 Benchmark]: Boogie Preprocessor took 105.54ms. Allocated memory is still 244.3MB. Free memory was 156.8MB in the beginning and 151.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 01:15:52,646 INFO L158 Benchmark]: RCFGBuilder took 1553.34ms. Allocated memory is still 244.3MB. Free memory was 151.5MB in the beginning and 138.4MB in the end (delta: 13.1MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-16 01:15:52,646 INFO L158 Benchmark]: TraceAbstraction took 10344.62ms. Allocated memory was 244.3MB in the beginning and 377.5MB in the end (delta: 133.2MB). Free memory was 137.9MB in the beginning and 233.8MB in the end (delta: -96.0MB). Peak memory consumption was 37.2MB. Max. memory is 8.0GB. [2023-12-16 01:15:52,647 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 164.6MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 355.75ms. Allocated memory is still 244.3MB. Free memory was 189.3MB in the beginning and 162.5MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.68ms. Allocated memory is still 244.3MB. Free memory was 162.5MB in the beginning and 156.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 105.54ms. Allocated memory is still 244.3MB. Free memory was 156.8MB in the beginning and 151.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1553.34ms. Allocated memory is still 244.3MB. Free memory was 151.5MB in the beginning and 138.4MB in the end (delta: 13.1MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 10344.62ms. Allocated memory was 244.3MB in the beginning and 377.5MB in the end (delta: 133.2MB). Free memory was 137.9MB in the beginning and 233.8MB in the end (delta: -96.0MB). Peak memory consumption was 37.2MB. 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: 587]: 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, 165 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1751 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1751 mSDsluCounter, 1914 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 556 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4333 IncrementalHoareTripleChecker+Invalid, 4889 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 556 mSolverCounterUnsat, 1758 mSDtfsCounter, 4333 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1696occurred in iteration=11, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 715 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 18 NumberOfFragments, 132 HoareAnnotationTreeSize, 1 FormulaSimplifications, 194 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 1 FormulaSimplificationsInter, 269 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 2811 NumberOfCodeBlocks, 2811 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2796 ConstructedInterpolants, 0 QuantifiedInterpolants, 6817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 406 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 1085/1186 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: 616]: Loop Invariant Derived loop invariant: ((((((((((((a11 == 1) && (a28 == 10)) && (a17 <= 8)) && (a25 == 0)) || (((((a25 == 1) && (a11 == 1)) && (a17 <= 8)) && (a19 == 1)) && (a28 <= 7))) || (((a28 == 10) && (a17 <= 8)) && (a19 == 1))) || (((((11 <= a28) && (a25 == 1)) && (a17 <= 8)) && (a19 == 1)) && !((a11 == 1)))) || (((a17 == 8) && (a28 <= 10)) && (a25 == 0))) || (((((9 <= a28) && (a25 == 1)) && (a11 == 1)) && (a17 <= 8)) && (a28 <= 10))) || (((((9 <= a28) && (a25 == 1)) && (a17 <= 8)) && (a28 <= 10)) && (a19 == 1))) || ((((((9 <= a28) && (a11 == 1)) && (a17 <= 8)) && (a28 <= 10)) && (a19 == 1)) && (a25 == 0))) || ((((a17 == 8) && (a25 == 1)) && (a28 <= 10)) && !((a11 == 1)))) RESULT: Ultimate proved your program to be correct! [2023-12-16 01:15:52,682 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...