/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/combinations/Problem05_label41+token_ring.12.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 00:32:33,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 00:32:33,976 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 00:32:33,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 00:32:33,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 00:32:34,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 00:32:34,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 00:32:34,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 00:32:34,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 00:32:34,014 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 00:32:34,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 00:32:34,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 00:32:34,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 00:32:34,016 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 00:32:34,016 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 00:32:34,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 00:32:34,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 00:32:34,017 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 00:32:34,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 00:32:34,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 00:32:34,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 00:32:34,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 00:32:34,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 00:32:34,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 00:32:34,018 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 00:32:34,018 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 00:32:34,019 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 00:32:34,019 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 00:32:34,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 00:32:34,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 00:32:34,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 00:32:34,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 00:32:34,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:32:34,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 00:32:34,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 00:32:34,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 00:32:34,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 00:32:34,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 00:32:34,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 00:32:34,022 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 00:32:34,022 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 00:32:34,022 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 00:32:34,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 00:32:34,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 00:32:34,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 00:32:34,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 00:32:34,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 00:32:34,286 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 00:32:34,286 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 00:32:34,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label41+token_ring.12.cil-2.c [2023-12-16 00:32:35,417 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 00:32:36,012 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 00:32:36,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.12.cil-2.c [2023-12-16 00:32:36,056 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f53d368/2ca140dacb6b457395525dd6ed85450d/FLAG321ff851c [2023-12-16 00:32:36,070 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f53d368/2ca140dacb6b457395525dd6ed85450d [2023-12-16 00:32:36,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 00:32:36,074 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 00:32:36,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 00:32:36,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 00:32:36,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 00:32:36,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:32:36" (1/1) ... [2023-12-16 00:32:36,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cf3395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36, skipping insertion in model container [2023-12-16 00:32:36,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:32:36" (1/1) ... [2023-12-16 00:32:36,259 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 00:32:37,839 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.12.cil-2.c[376251,376264] [2023-12-16 00:32:37,873 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.12.cil-2.c[383339,383352] [2023-12-16 00:32:38,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:32:38,134 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 00:32:38,817 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.12.cil-2.c[376251,376264] [2023-12-16 00:32:38,824 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.12.cil-2.c[383339,383352] [2023-12-16 00:32:38,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:32:38,904 INFO L206 MainTranslator]: Completed translation [2023-12-16 00:32:38,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38 WrapperNode [2023-12-16 00:32:38,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 00:32:38,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 00:32:38,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 00:32:38,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 00:32:38,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:39,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:39,440 INFO L138 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13233 [2023-12-16 00:32:39,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 00:32:39,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 00:32:39,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 00:32:39,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 00:32:39,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:39,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:39,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:39,590 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 00:32:39,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:39,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:39,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:39,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:39,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:39,942 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:40,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 00:32:40,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 00:32:40,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 00:32:40,018 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 00:32:40,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (1/1) ... [2023-12-16 00:32:40,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:32:40,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:32:40,049 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 00:32:40,077 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 00:32:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 00:32:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 00:32:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 00:32:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 00:32:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 00:32:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 00:32:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 00:32:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 00:32:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 00:32:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 00:32:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 00:32:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 00:32:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 00:32:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 00:32:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 00:32:40,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 00:32:40,201 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 00:32:40,203 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 00:32:47,235 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 00:32:47,326 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 00:32:47,326 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-12-16 00:32:47,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:32:47 BoogieIcfgContainer [2023-12-16 00:32:47,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 00:32:47,329 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 00:32:47,329 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 00:32:47,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 00:32:47,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:32:36" (1/3) ... [2023-12-16 00:32:47,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12eba36a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:32:47, skipping insertion in model container [2023-12-16 00:32:47,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:38" (2/3) ... [2023-12-16 00:32:47,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12eba36a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:32:47, skipping insertion in model container [2023-12-16 00:32:47,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:32:47" (3/3) ... [2023-12-16 00:32:47,334 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.12.cil-2.c [2023-12-16 00:32:47,349 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 00:32:47,349 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 00:32:47,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 00:32:47,431 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;@2f9717b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 00:32:47,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 00:32:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 2471 states, 2436 states have (on average 1.875615763546798) internal successors, (4569), 2439 states have internal predecessors, (4569), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 00:32:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:32:47,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:32:47,462 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, 1, 1, 1, 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 00:32:47,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:32:47,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:32:47,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1395407095, now seen corresponding path program 1 times [2023-12-16 00:32:47,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:32:47,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248935256] [2023-12-16 00:32:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:32:47,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:32:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:32:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:48,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:32:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:48,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:32:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:48,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:32:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:48,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:32:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:48,211 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 00:32:48,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:32:48,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248935256] [2023-12-16 00:32:48,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248935256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:32:48,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:32:48,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 00:32:48,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041186949] [2023-12-16 00:32:48,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:32:48,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 00:32:48,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:32:48,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 00:32:48,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 00:32:48,262 INFO L87 Difference]: Start difference. First operand has 2471 states, 2436 states have (on average 1.875615763546798) internal successors, (4569), 2439 states have internal predecessors, (4569), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:32:50,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:32:50,305 INFO L93 Difference]: Finished difference Result 5068 states and 9466 transitions. [2023-12-16 00:32:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 00:32:50,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:32:50,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:32:50,342 INFO L225 Difference]: With dead ends: 5068 [2023-12-16 00:32:50,342 INFO L226 Difference]: Without dead ends: 2597 [2023-12-16 00:32:50,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 00:32:50,359 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 979 mSDsluCounter, 12204 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 16461 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:32:50,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 16461 Invalid, 1126 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:32:50,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2023-12-16 00:32:50,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2467. [2023-12-16 00:32:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2433 states have (on average 1.8368269625976161) internal successors, (4469), 2435 states have internal predecessors, (4469), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 00:32:50,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4521 transitions. [2023-12-16 00:32:50,507 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4521 transitions. Word has length 161 [2023-12-16 00:32:50,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:32:50,507 INFO L495 AbstractCegarLoop]: Abstraction has 2467 states and 4521 transitions. [2023-12-16 00:32:50,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:32:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4521 transitions. [2023-12-16 00:32:50,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:32:50,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:32:50,519 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, 1, 1, 1, 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 00:32:50,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 00:32:50,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:32:50,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:32:50,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2006676153, now seen corresponding path program 1 times [2023-12-16 00:32:50,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:32:50,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990794171] [2023-12-16 00:32:50,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:32:50,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:32:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:50,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:32:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:50,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:32:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:32:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:50,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:32:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:50,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:32:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:50,743 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 00:32:50,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:32:50,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990794171] [2023-12-16 00:32:50,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990794171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:32:50,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:32:50,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 00:32:50,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392675502] [2023-12-16 00:32:50,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:32:50,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 00:32:50,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:32:50,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 00:32:50,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 00:32:50,746 INFO L87 Difference]: Start difference. First operand 2467 states and 4521 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:32:52,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:32:52,733 INFO L93 Difference]: Finished difference Result 2930 states and 5294 transitions. [2023-12-16 00:32:52,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 00:32:52,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:32:52,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:32:52,747 INFO L225 Difference]: With dead ends: 2930 [2023-12-16 00:32:52,748 INFO L226 Difference]: Without dead ends: 2597 [2023-12-16 00:32:52,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 00:32:52,751 INFO L413 NwaCegarLoop]: 4253 mSDtfsCounter, 967 mSDsluCounter, 12195 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 16448 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 00:32:52,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 16448 Invalid, 1115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 00:32:52,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2023-12-16 00:32:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2467. [2023-12-16 00:32:52,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2433 states have (on average 1.8364159473900534) internal successors, (4468), 2435 states have internal predecessors, (4468), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 00:32:52,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4520 transitions. [2023-12-16 00:32:52,823 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4520 transitions. Word has length 161 [2023-12-16 00:32:52,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:32:52,825 INFO L495 AbstractCegarLoop]: Abstraction has 2467 states and 4520 transitions. [2023-12-16 00:32:52,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:32:52,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4520 transitions. [2023-12-16 00:32:52,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:32:52,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:32:52,828 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, 1, 1, 1, 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 00:32:52,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 00:32:52,828 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:32:52,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:32:52,830 INFO L85 PathProgramCache]: Analyzing trace with hash -965112197, now seen corresponding path program 1 times [2023-12-16 00:32:52,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:32:52,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71033442] [2023-12-16 00:32:52,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:32:52,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:32:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:53,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:32:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:53,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:32:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:32:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:53,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:32:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:53,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:32:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:53,210 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 00:32:53,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:32:53,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71033442] [2023-12-16 00:32:53,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71033442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:32:53,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:32:53,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 00:32:53,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621149166] [2023-12-16 00:32:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:32:53,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 00:32:53,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:32:53,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 00:32:53,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 00:32:53,214 INFO L87 Difference]: Start difference. First operand 2467 states and 4520 transitions. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:32:56,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:32:56,207 INFO L93 Difference]: Finished difference Result 3402 states and 6086 transitions. [2023-12-16 00:32:56,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 00:32:56,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:32:56,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:32:56,222 INFO L225 Difference]: With dead ends: 3402 [2023-12-16 00:32:56,223 INFO L226 Difference]: Without dead ends: 3074 [2023-12-16 00:32:56,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:32:56,226 INFO L413 NwaCegarLoop]: 4221 mSDtfsCounter, 5433 mSDsluCounter, 12655 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5452 SdHoareTripleChecker+Valid, 16876 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 00:32:56,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5452 Valid, 16876 Invalid, 2405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 00:32:56,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2023-12-16 00:32:56,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 2815. [2023-12-16 00:32:56,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.8147475481293134) internal successors, (4996), 2756 states have internal predecessors, (4996), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2023-12-16 00:32:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5093 transitions. [2023-12-16 00:32:56,310 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5093 transitions. Word has length 161 [2023-12-16 00:32:56,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:32:56,311 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5093 transitions. [2023-12-16 00:32:56,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:32:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5093 transitions. [2023-12-16 00:32:56,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:32:56,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:32:56,313 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, 1, 1, 1, 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 00:32:56,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 00:32:56,314 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:32:56,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:32:56,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1451895109, now seen corresponding path program 1 times [2023-12-16 00:32:56,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:32:56,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795447429] [2023-12-16 00:32:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:32:56,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:32:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:56,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:32:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:56,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:32:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:56,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:32:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:32:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:56,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:32:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:32:56,774 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 00:32:56,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:32:56,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795447429] [2023-12-16 00:32:56,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795447429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:32:56,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:32:56,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:32:56,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305272743] [2023-12-16 00:32:56,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:32:56,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:32:56,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:32:56,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:32:56,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:32:56,779 INFO L87 Difference]: Start difference. First operand 2815 states and 5093 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:00,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:33:00,844 INFO L93 Difference]: Finished difference Result 4247 states and 7492 transitions. [2023-12-16 00:33:00,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:33:00,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:33:00,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:33:00,862 INFO L225 Difference]: With dead ends: 4247 [2023-12-16 00:33:00,862 INFO L226 Difference]: Without dead ends: 3571 [2023-12-16 00:33:00,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:33:00,868 INFO L413 NwaCegarLoop]: 4419 mSDtfsCounter, 5470 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3725 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5489 SdHoareTripleChecker+Valid, 21777 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 00:33:00,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5489 Valid, 21777 Invalid, 3786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3725 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 00:33:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2023-12-16 00:33:01,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3136. [2023-12-16 00:33:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3046 states have (on average 1.7957977675640184) internal successors, (5470), 3050 states have internal predecessors, (5470), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2023-12-16 00:33:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 5611 transitions. [2023-12-16 00:33:01,067 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 5611 transitions. Word has length 161 [2023-12-16 00:33:01,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:33:01,068 INFO L495 AbstractCegarLoop]: Abstraction has 3136 states and 5611 transitions. [2023-12-16 00:33:01,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:01,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 5611 transitions. [2023-12-16 00:33:01,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:33:01,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:33:01,070 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, 1, 1, 1, 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 00:33:01,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 00:33:01,071 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:33:01,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:33:01,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1055202365, now seen corresponding path program 1 times [2023-12-16 00:33:01,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:33:01,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837830881] [2023-12-16 00:33:01,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:33:01,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:33:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:01,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:33:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:33:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:33:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:01,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:33:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:01,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:33:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:01,351 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 00:33:01,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:33:01,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837830881] [2023-12-16 00:33:01,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837830881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:33:01,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:33:01,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:33:01,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807967665] [2023-12-16 00:33:01,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:33:01,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:33:01,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:33:01,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:33:01,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:33:01,354 INFO L87 Difference]: Start difference. First operand 3136 states and 5611 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:33:04,784 INFO L93 Difference]: Finished difference Result 5485 states and 9538 transitions. [2023-12-16 00:33:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:33:04,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:33:04,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:33:04,806 INFO L225 Difference]: With dead ends: 5485 [2023-12-16 00:33:04,806 INFO L226 Difference]: Without dead ends: 4488 [2023-12-16 00:33:04,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:33:04,812 INFO L413 NwaCegarLoop]: 4230 mSDtfsCounter, 5580 mSDsluCounter, 16851 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5599 SdHoareTripleChecker+Valid, 21081 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:33:04,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5599 Valid, 21081 Invalid, 3190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [99 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 00:33:04,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4488 states. [2023-12-16 00:33:05,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4488 to 3779. [2023-12-16 00:33:05,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3633 states have (on average 1.766859344894027) internal successors, (6419), 3639 states have internal predecessors, (6419), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2023-12-16 00:33:05,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6652 transitions. [2023-12-16 00:33:05,025 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6652 transitions. Word has length 161 [2023-12-16 00:33:05,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:33:05,026 INFO L495 AbstractCegarLoop]: Abstraction has 3779 states and 6652 transitions. [2023-12-16 00:33:05,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:05,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6652 transitions. [2023-12-16 00:33:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:33:05,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:33:05,029 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, 1, 1, 1, 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 00:33:05,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 00:33:05,029 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:33:05,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:33:05,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1080680837, now seen corresponding path program 1 times [2023-12-16 00:33:05,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:33:05,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161772562] [2023-12-16 00:33:05,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:33:05,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:33:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:05,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:33:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:05,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:33:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:05,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:33:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:05,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:33:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:05,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:33:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:05,305 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 00:33:05,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:33:05,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161772562] [2023-12-16 00:33:05,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161772562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:33:05,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:33:05,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:33:05,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706396309] [2023-12-16 00:33:05,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:33:05,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:33:05,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:33:05,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:33:05,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:33:05,308 INFO L87 Difference]: Start difference. First operand 3779 states and 6652 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:07,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:33:07,375 INFO L93 Difference]: Finished difference Result 6118 states and 10572 transitions. [2023-12-16 00:33:07,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:33:07,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:33:07,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:33:07,394 INFO L225 Difference]: With dead ends: 6118 [2023-12-16 00:33:07,394 INFO L226 Difference]: Without dead ends: 4478 [2023-12-16 00:33:07,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:33:07,401 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5039 mSDsluCounter, 16601 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5059 SdHoareTripleChecker+Valid, 20809 SdHoareTripleChecker+Invalid, 1969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:33:07,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5059 Valid, 20809 Invalid, 1969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 00:33:07,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2023-12-16 00:33:07,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 3779. [2023-12-16 00:33:07,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3633 states have (on average 1.7654830718414534) internal successors, (6414), 3639 states have internal predecessors, (6414), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2023-12-16 00:33:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6647 transitions. [2023-12-16 00:33:07,542 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6647 transitions. Word has length 161 [2023-12-16 00:33:07,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:33:07,543 INFO L495 AbstractCegarLoop]: Abstraction has 3779 states and 6647 transitions. [2023-12-16 00:33:07,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:07,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6647 transitions. [2023-12-16 00:33:07,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:33:07,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:33:07,546 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, 1, 1, 1, 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 00:33:07,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 00:33:07,546 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:33:07,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:33:07,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1011032963, now seen corresponding path program 1 times [2023-12-16 00:33:07,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:33:07,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145719121] [2023-12-16 00:33:07,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:33:07,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:33:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:07,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:33:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:07,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:33:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:07,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:33:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:07,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:33:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:07,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:33:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:07,801 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 00:33:07,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:33:07,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145719121] [2023-12-16 00:33:07,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145719121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:33:07,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:33:07,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:33:07,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221190436] [2023-12-16 00:33:07,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:33:07,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:33:07,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:33:07,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:33:07,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:33:07,804 INFO L87 Difference]: Start difference. First operand 3779 states and 6647 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:09,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:33:09,493 INFO L93 Difference]: Finished difference Result 6107 states and 10536 transitions. [2023-12-16 00:33:09,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:33:09,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:33:09,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:33:09,528 INFO L225 Difference]: With dead ends: 6107 [2023-12-16 00:33:09,528 INFO L226 Difference]: Without dead ends: 4467 [2023-12-16 00:33:09,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:33:09,537 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5188 mSDsluCounter, 12482 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5208 SdHoareTripleChecker+Valid, 16690 SdHoareTripleChecker+Invalid, 1788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 00:33:09,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5208 Valid, 16690 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1697 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 00:33:09,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4467 states. [2023-12-16 00:33:09,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4467 to 3779. [2023-12-16 00:33:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3633 states have (on average 1.7641067987888797) internal successors, (6409), 3639 states have internal predecessors, (6409), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2023-12-16 00:33:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6642 transitions. [2023-12-16 00:33:09,656 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6642 transitions. Word has length 161 [2023-12-16 00:33:09,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:33:09,656 INFO L495 AbstractCegarLoop]: Abstraction has 3779 states and 6642 transitions. [2023-12-16 00:33:09,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:09,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6642 transitions. [2023-12-16 00:33:09,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:33:09,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:33:09,659 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, 1, 1, 1, 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 00:33:09,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 00:33:09,660 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:33:09,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:33:09,660 INFO L85 PathProgramCache]: Analyzing trace with hash 387920639, now seen corresponding path program 1 times [2023-12-16 00:33:09,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:33:09,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561114314] [2023-12-16 00:33:09,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:33:09,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:33:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:09,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:33:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:09,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:33:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:09,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:33:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:09,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:33:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:09,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:33:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:09,936 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 00:33:09,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:33:09,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561114314] [2023-12-16 00:33:09,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561114314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:33:09,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:33:09,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:33:09,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141203855] [2023-12-16 00:33:09,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:33:09,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:33:09,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:33:09,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:33:09,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:33:09,938 INFO L87 Difference]: Start difference. First operand 3779 states and 6642 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:33:13,692 INFO L93 Difference]: Finished difference Result 7839 states and 13357 transitions. [2023-12-16 00:33:13,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:33:13,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:33:13,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:33:13,720 INFO L225 Difference]: With dead ends: 7839 [2023-12-16 00:33:13,720 INFO L226 Difference]: Without dead ends: 6199 [2023-12-16 00:33:13,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:33:13,729 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 5453 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3646 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5472 SdHoareTripleChecker+Valid, 21775 SdHoareTripleChecker+Invalid, 3709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:33:13,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5472 Valid, 21775 Invalid, 3709 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3646 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 00:33:13,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6199 states. [2023-12-16 00:33:13,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6199 to 5080. [2023-12-16 00:33:13,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 4822 states have (on average 1.7254251347988387) internal successors, (8320), 4832 states have internal predecessors, (8320), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2023-12-16 00:33:13,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 8743 transitions. [2023-12-16 00:33:13,912 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 8743 transitions. Word has length 161 [2023-12-16 00:33:13,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:33:13,914 INFO L495 AbstractCegarLoop]: Abstraction has 5080 states and 8743 transitions. [2023-12-16 00:33:13,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:13,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 8743 transitions. [2023-12-16 00:33:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:33:13,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:33:13,917 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, 1, 1, 1, 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 00:33:13,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 00:33:13,917 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:33:13,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:33:13,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1229519811, now seen corresponding path program 1 times [2023-12-16 00:33:13,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:33:13,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006264512] [2023-12-16 00:33:13,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:33:13,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:33:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:14,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:33:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:14,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:33:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:14,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:33:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:14,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:33:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:14,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:33:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:14,184 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 00:33:14,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:33:14,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006264512] [2023-12-16 00:33:14,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006264512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:33:14,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:33:14,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:33:14,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217489824] [2023-12-16 00:33:14,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:33:14,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:33:14,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:33:14,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:33:14,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:33:14,187 INFO L87 Difference]: Start difference. First operand 5080 states and 8743 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:16,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:33:16,144 INFO L93 Difference]: Finished difference Result 9165 states and 15533 transitions. [2023-12-16 00:33:16,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:33:16,144 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:33:16,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:33:16,165 INFO L225 Difference]: With dead ends: 9165 [2023-12-16 00:33:16,165 INFO L226 Difference]: Without dead ends: 6224 [2023-12-16 00:33:16,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:33:16,176 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5035 mSDsluCounter, 16601 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5055 SdHoareTripleChecker+Valid, 20809 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:33:16,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5055 Valid, 20809 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:33:16,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2023-12-16 00:33:16,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 5080. [2023-12-16 00:33:16,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 4822 states have (on average 1.7235586893405226) internal successors, (8311), 4832 states have internal predecessors, (8311), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2023-12-16 00:33:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 8734 transitions. [2023-12-16 00:33:16,347 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 8734 transitions. Word has length 161 [2023-12-16 00:33:16,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:33:16,348 INFO L495 AbstractCegarLoop]: Abstraction has 5080 states and 8734 transitions. [2023-12-16 00:33:16,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:16,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 8734 transitions. [2023-12-16 00:33:16,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:33:16,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:33:16,351 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, 1, 1, 1, 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 00:33:16,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 00:33:16,351 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:33:16,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:33:16,352 INFO L85 PathProgramCache]: Analyzing trace with hash -866053313, now seen corresponding path program 1 times [2023-12-16 00:33:16,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:33:16,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129761377] [2023-12-16 00:33:16,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:33:16,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:33:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:33:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:33:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:33:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:33:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:33:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:16,616 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 00:33:16,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:33:16,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129761377] [2023-12-16 00:33:16,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129761377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:33:16,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:33:16,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:33:16,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382146920] [2023-12-16 00:33:16,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:33:16,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:33:16,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:33:16,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:33:16,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:33:16,618 INFO L87 Difference]: Start difference. First operand 5080 states and 8734 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:20,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:33:20,505 INFO L93 Difference]: Finished difference Result 12574 states and 21066 transitions. [2023-12-16 00:33:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:33:20,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:33:20,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:33:20,540 INFO L225 Difference]: With dead ends: 12574 [2023-12-16 00:33:20,540 INFO L226 Difference]: Without dead ends: 9633 [2023-12-16 00:33:20,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:33:20,554 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 5445 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3608 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5464 SdHoareTripleChecker+Valid, 21775 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:33:20,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5464 Valid, 21775 Invalid, 3671 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3608 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 00:33:20,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9633 states. [2023-12-16 00:33:20,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9633 to 7692. [2023-12-16 00:33:20,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7692 states, 7210 states have (on average 1.6828016643550625) internal successors, (12133), 7228 states have internal predecessors, (12133), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2023-12-16 00:33:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7692 states to 7692 states and 12954 transitions. [2023-12-16 00:33:20,917 INFO L78 Accepts]: Start accepts. Automaton has 7692 states and 12954 transitions. Word has length 161 [2023-12-16 00:33:20,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:33:20,918 INFO L495 AbstractCegarLoop]: Abstraction has 7692 states and 12954 transitions. [2023-12-16 00:33:20,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:20,918 INFO L276 IsEmpty]: Start isEmpty. Operand 7692 states and 12954 transitions. [2023-12-16 00:33:20,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:33:20,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:33:20,922 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, 1, 1, 1, 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 00:33:20,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 00:33:20,923 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:33:20,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:33:20,923 INFO L85 PathProgramCache]: Analyzing trace with hash -577233923, now seen corresponding path program 1 times [2023-12-16 00:33:20,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:33:20,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432887970] [2023-12-16 00:33:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:33:20,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:33:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:21,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:33:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:33:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:21,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:33:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:21,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:33:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:21,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:33:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:21,165 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 00:33:21,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:33:21,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432887970] [2023-12-16 00:33:21,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432887970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:33:21,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:33:21,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:33:21,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298661918] [2023-12-16 00:33:21,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:33:21,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:33:21,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:33:21,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:33:21,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:33:21,168 INFO L87 Difference]: Start difference. First operand 7692 states and 12954 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:25,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:33:25,064 INFO L93 Difference]: Finished difference Result 22060 states and 36616 transitions. [2023-12-16 00:33:25,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:33:25,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 00:33:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:33:25,117 INFO L225 Difference]: With dead ends: 22060 [2023-12-16 00:33:25,117 INFO L226 Difference]: Without dead ends: 16507 [2023-12-16 00:33:25,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:33:25,137 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 5444 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3595 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5463 SdHoareTripleChecker+Valid, 21775 SdHoareTripleChecker+Invalid, 3658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:33:25,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5463 Valid, 21775 Invalid, 3658 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3595 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 00:33:25,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16507 states. [2023-12-16 00:33:25,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16507 to 12929. [2023-12-16 00:33:25,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12929 states, 11999 states have (on average 1.6497208100675056) internal successors, (19795), 12033 states have internal predecessors, (19795), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2023-12-16 00:33:25,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12929 states to 12929 states and 21466 transitions. [2023-12-16 00:33:25,678 INFO L78 Accepts]: Start accepts. Automaton has 12929 states and 21466 transitions. Word has length 161 [2023-12-16 00:33:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:33:25,678 INFO L495 AbstractCegarLoop]: Abstraction has 12929 states and 21466 transitions. [2023-12-16 00:33:25,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:33:25,678 INFO L276 IsEmpty]: Start isEmpty. Operand 12929 states and 21466 transitions. [2023-12-16 00:33:25,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 00:33:25,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:33:25,693 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, 1, 1, 1, 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 00:33:25,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 00:33:25,693 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:33:25,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:33:25,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1122106497, now seen corresponding path program 1 times [2023-12-16 00:33:25,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:33:25,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431020992] [2023-12-16 00:33:25,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:33:25,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:33:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:25,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:33:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:25,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 00:33:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:25,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 00:33:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 00:33:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:25,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 00:33:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:33:25,949 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 00:33:25,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:33:25,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431020992] [2023-12-16 00:33:25,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431020992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:33:25,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:33:25,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:33:25,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454077796] [2023-12-16 00:33:25,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:33:25,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:33:25,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:33:25,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:33:25,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:33:25,951 INFO L87 Difference]: Start difference. First operand 12929 states and 21466 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-16 00:33:26,048 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 00:33:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:33:26,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:33:26,124 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 00:33:26,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 00:33:26,128 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 00:33:26,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 00:33:26,129 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (12929states) and FLOYD_HOARE automaton (currently 3 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-40-1 term,while SimplifyDDA2 was simplifying 40 xjuncts wrt. a ATOM-1 context. [2023-12-16 00:33:26,130 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 00:33:26,134 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:33:26,136 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 00:33:26,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:33:26 BoogieIcfgContainer [2023-12-16 00:33:26,142 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 00:33:26,142 INFO L158 Benchmark]: Toolchain (without parser) took 50068.90ms. Allocated memory was 277.9MB in the beginning and 2.0GB in the end (delta: 1.7GB). Free memory was 232.0MB in the beginning and 1.1GB in the end (delta: -903.7MB). Peak memory consumption was 810.2MB. Max. memory is 8.0GB. [2023-12-16 00:33:26,143 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 197.1MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 00:33:26,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2828.81ms. Allocated memory is still 277.9MB. Free memory was 231.5MB in the beginning and 117.2MB in the end (delta: 114.3MB). Peak memory consumption was 202.9MB. Max. memory is 8.0GB. [2023-12-16 00:33:26,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 535.14ms. Allocated memory was 277.9MB in the beginning and 449.8MB in the end (delta: 172.0MB). Free memory was 116.7MB in the beginning and 309.1MB in the end (delta: -192.4MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. [2023-12-16 00:33:26,144 INFO L158 Benchmark]: Boogie Preprocessor took 574.80ms. Allocated memory is still 449.8MB. Free memory was 309.1MB in the beginning and 252.5MB in the end (delta: 56.6MB). Peak memory consumption was 63.4MB. Max. memory is 8.0GB. [2023-12-16 00:33:26,144 INFO L158 Benchmark]: RCFGBuilder took 7309.27ms. Allocated memory was 449.8MB in the beginning and 1.2GB in the end (delta: 739.2MB). Free memory was 252.5MB in the beginning and 736.2MB in the end (delta: -483.7MB). Peak memory consumption was 256.1MB. Max. memory is 8.0GB. [2023-12-16 00:33:26,145 INFO L158 Benchmark]: TraceAbstraction took 38812.98ms. Allocated memory was 1.2GB in the beginning and 2.0GB in the end (delta: 802.2MB). Free memory was 735.7MB in the beginning and 1.1GB in the end (delta: -400.0MB). Peak memory consumption was 402.6MB. Max. memory is 8.0GB. [2023-12-16 00:33:26,150 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 197.1MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2828.81ms. Allocated memory is still 277.9MB. Free memory was 231.5MB in the beginning and 117.2MB in the end (delta: 114.3MB). Peak memory consumption was 202.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 535.14ms. Allocated memory was 277.9MB in the beginning and 449.8MB in the end (delta: 172.0MB). Free memory was 116.7MB in the beginning and 309.1MB in the end (delta: -192.4MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 574.80ms. Allocated memory is still 449.8MB. Free memory was 309.1MB in the beginning and 252.5MB in the end (delta: 56.6MB). Peak memory consumption was 63.4MB. Max. memory is 8.0GB. * RCFGBuilder took 7309.27ms. Allocated memory was 449.8MB in the beginning and 1.2GB in the end (delta: 739.2MB). Free memory was 252.5MB in the beginning and 736.2MB in the end (delta: -483.7MB). Peak memory consumption was 256.1MB. Max. memory is 8.0GB. * TraceAbstraction took 38812.98ms. Allocated memory was 1.2GB in the beginning and 2.0GB in the end (delta: 802.2MB). Free memory was 735.7MB in the beginning and 1.1GB in the end (delta: -400.0MB). Peak memory consumption was 402.6MB. 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 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (12929states) and FLOYD_HOARE automaton (currently 3 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-40-1 term,while SimplifyDDA2 was simplifying 40 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 10998]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 10998). Cancelled while NwaCegarLoop was constructing difference of abstraction (12929states) and FLOYD_HOARE automaton (currently 3 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-40-1 term,while SimplifyDDA2 was simplifying 40 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2471 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 38.8s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 32.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50257 SdHoareTripleChecker+Valid, 23.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50035 mSDsluCounter, 216282 SdHoareTripleChecker+Invalid, 19.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169025 mSDsCounter, 792 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27558 IncrementalHoareTripleChecker+Invalid, 28350 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 792 mSolverCounterUnsat, 47257 mSDtfsCounter, 27558 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12929occurred in iteration=11, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 10832 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1932 NumberOfCodeBlocks, 1932 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1920 ConstructedInterpolants, 0 QuantifiedInterpolants, 5552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown