/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label48+token_ring.12.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 22:33:03,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 22:33:03,092 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 22:33:03,096 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 22:33:03,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 22:33:03,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 22:33:03,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 22:33:03,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 22:33:03,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 22:33:03,111 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 22:33:03,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 22:33:03,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 22:33:03,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 22:33:03,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 22:33:03,113 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 22:33:03,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 22:33:03,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 22:33:03,114 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 22:33:03,114 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 22:33:03,114 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 22:33:03,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 22:33:03,115 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 22:33:03,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 22:33:03,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 22:33:03,115 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 22:33:03,116 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 22:33:03,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 22:33:03,116 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 22:33:03,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 22:33:03,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 22:33:03,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 22:33:03,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 22:33:03,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 22:33:03,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 22:33:03,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 22:33:03,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 22:33:03,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 22:33:03,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 22:33:03,118 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 22:33:03,118 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 22:33:03,119 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 22:33:03,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 22:33:03,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 22:33:03,125 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 22:33:03,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 22:33:03,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 22:33:03,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 22:33:03,344 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 22:33:03,344 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 22:33:03,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label48+token_ring.12.cil-2.c [2023-12-18 22:33:04,292 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 22:33:04,697 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 22:33:04,698 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.12.cil-2.c [2023-12-18 22:33:04,743 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d33ac5517/0dc99a548a744147b68e722538d69069/FLAG675dcd6d8 [2023-12-18 22:33:04,754 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d33ac5517/0dc99a548a744147b68e722538d69069 [2023-12-18 22:33:04,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 22:33:04,758 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 22:33:04,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 22:33:04,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 22:33:04,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 22:33:04,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:33:04" (1/1) ... [2023-12-18 22:33:04,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1f7f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:04, skipping insertion in model container [2023-12-18 22:33:04,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:33:04" (1/1) ... [2023-12-18 22:33:04,939 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 22:33:06,094 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_label48+token_ring.12.cil-2.c[375709,375722] [2023-12-18 22:33:06,120 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_label48+token_ring.12.cil-2.c[383339,383352] [2023-12-18 22:33:06,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 22:33:06,385 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 22:33:07,046 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_label48+token_ring.12.cil-2.c[375709,375722] [2023-12-18 22:33:07,053 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_label48+token_ring.12.cil-2.c[383339,383352] [2023-12-18 22:33:07,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 22:33:07,117 INFO L206 MainTranslator]: Completed translation [2023-12-18 22:33:07,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07 WrapperNode [2023-12-18 22:33:07,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 22:33:07,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 22:33:07,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 22:33:07,118 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 22:33:07,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:07,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:07,547 INFO L138 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13233 [2023-12-18 22:33:07,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 22:33:07,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 22:33:07,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 22:33:07,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 22:33:07,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:07,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:07,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:07,703 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]. [2023-12-18 22:33:07,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:07,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:07,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:07,942 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:07,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:07,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:08,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 22:33:08,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 22:33:08,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 22:33:08,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 22:33:08,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (1/1) ... [2023-12-18 22:33:08,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 22:33:08,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:33:08,070 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) [2023-12-18 22:33:08,082 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 [2023-12-18 22:33:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 22:33:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-18 22:33:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-18 22:33:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-18 22:33:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-18 22:33:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-18 22:33:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-18 22:33:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-18 22:33:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-18 22:33:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-18 22:33:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-18 22:33:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-18 22:33:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-18 22:33:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 22:33:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 22:33:08,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 22:33:08,195 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 22:33:08,197 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 22:33:13,778 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 22:33:13,858 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 22:33:13,858 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-12-18 22:33:13,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:33:13 BoogieIcfgContainer [2023-12-18 22:33:13,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 22:33:13,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 22:33:13,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 22:33:13,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 22:33:13,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:33:04" (1/3) ... [2023-12-18 22:33:13,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e25ff34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:33:13, skipping insertion in model container [2023-12-18 22:33:13,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:33:07" (2/3) ... [2023-12-18 22:33:13,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e25ff34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:33:13, skipping insertion in model container [2023-12-18 22:33:13,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:33:13" (3/3) ... [2023-12-18 22:33:13,864 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.12.cil-2.c [2023-12-18 22:33:13,877 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 22:33:13,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-18 22:33:13,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 22:33:13,939 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;@31b739bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 22:33:13,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-18 22:33:13,948 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) [2023-12-18 22:33:13,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:13,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:13,961 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] [2023-12-18 22:33:13,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:13,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:13,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1395407095, now seen corresponding path program 1 times [2023-12-18 22:33:13,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:13,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997402187] [2023-12-18 22:33:13,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:13,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:14,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:14,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:14,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:14,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:14,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:14,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:14,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997402187] [2023-12-18 22:33:14,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997402187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:14,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:14,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-18 22:33:14,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826234340] [2023-12-18 22:33:14,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:14,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-18 22:33:14,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:14,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-18 22:33:14,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-18 22:33:14,431 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) [2023-12-18 22:33:16,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:16,190 INFO L93 Difference]: Finished difference Result 5068 states and 9466 transitions. [2023-12-18 22:33:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 22:33:16,192 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 [2023-12-18 22:33:16,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:16,210 INFO L225 Difference]: With dead ends: 5068 [2023-12-18 22:33:16,210 INFO L226 Difference]: Without dead ends: 2597 [2023-12-18 22:33:16,217 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 [2023-12-18 22:33:16,219 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 979 mSDsluCounter, 12204 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:16,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 16461 Invalid, 1126 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-18 22:33:16,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2023-12-18 22:33:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2467. [2023-12-18 22:33:16,314 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) [2023-12-18 22:33:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4521 transitions. [2023-12-18 22:33:16,323 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4521 transitions. Word has length 161 [2023-12-18 22:33:16,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:16,323 INFO L495 AbstractCegarLoop]: Abstraction has 2467 states and 4521 transitions. [2023-12-18 22:33:16,323 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) [2023-12-18 22:33:16,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4521 transitions. [2023-12-18 22:33:16,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:16,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:16,327 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] [2023-12-18 22:33:16,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-18 22:33:16,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:16,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:16,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2006676153, now seen corresponding path program 1 times [2023-12-18 22:33:16,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:16,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342859384] [2023-12-18 22:33:16,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:16,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:16,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:16,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:16,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342859384] [2023-12-18 22:33:16,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342859384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:16,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:16,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-18 22:33:16,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117496922] [2023-12-18 22:33:16,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:16,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-18 22:33:16,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:16,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-18 22:33:16,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-18 22:33:16,583 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) [2023-12-18 22:33:17,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:17,940 INFO L93 Difference]: Finished difference Result 2930 states and 5294 transitions. [2023-12-18 22:33:17,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 22:33:17,941 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 [2023-12-18 22:33:17,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:17,951 INFO L225 Difference]: With dead ends: 2930 [2023-12-18 22:33:17,952 INFO L226 Difference]: Without dead ends: 2597 [2023-12-18 22:33:17,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-18 22:33:17,957 INFO L413 NwaCegarLoop]: 4253 mSDtfsCounter, 967 mSDsluCounter, 12195 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 16448 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:17,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 16448 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-18 22:33:17,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2023-12-18 22:33:18,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2467. [2023-12-18 22:33:18,011 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) [2023-12-18 22:33:18,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4520 transitions. [2023-12-18 22:33:18,020 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4520 transitions. Word has length 161 [2023-12-18 22:33:18,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:18,021 INFO L495 AbstractCegarLoop]: Abstraction has 2467 states and 4520 transitions. [2023-12-18 22:33:18,022 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) [2023-12-18 22:33:18,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4520 transitions. [2023-12-18 22:33:18,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:18,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:18,028 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] [2023-12-18 22:33:18,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-18 22:33:18,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:18,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:18,030 INFO L85 PathProgramCache]: Analyzing trace with hash -965112197, now seen corresponding path program 1 times [2023-12-18 22:33:18,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:18,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796449282] [2023-12-18 22:33:18,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:18,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:18,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:18,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:18,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:18,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:18,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:18,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796449282] [2023-12-18 22:33:18,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796449282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:18,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:18,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-18 22:33:18,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795892857] [2023-12-18 22:33:18,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:18,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-18 22:33:18,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:18,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-18 22:33:18,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-18 22:33:18,305 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) [2023-12-18 22:33:20,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:20,885 INFO L93 Difference]: Finished difference Result 3402 states and 6086 transitions. [2023-12-18 22:33:20,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-18 22:33:20,885 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 [2023-12-18 22:33:20,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:20,897 INFO L225 Difference]: With dead ends: 3402 [2023-12-18 22:33:20,897 INFO L226 Difference]: Without dead ends: 3074 [2023-12-18 22:33:20,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:33:20,901 INFO L413 NwaCegarLoop]: 4221 mSDtfsCounter, 5433 mSDsluCounter, 12655 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 2.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:20,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5452 Valid, 16876 Invalid, 2405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-18 22:33:20,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2023-12-18 22:33:20,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 2815. [2023-12-18 22:33:20,965 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) [2023-12-18 22:33:20,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5093 transitions. [2023-12-18 22:33:20,974 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5093 transitions. Word has length 161 [2023-12-18 22:33:20,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:20,974 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5093 transitions. [2023-12-18 22:33:20,974 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) [2023-12-18 22:33:20,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5093 transitions. [2023-12-18 22:33:20,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:20,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:20,976 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] [2023-12-18 22:33:20,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-18 22:33:20,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:20,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:20,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1451895109, now seen corresponding path program 1 times [2023-12-18 22:33:20,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:20,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785386690] [2023-12-18 22:33:20,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:20,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:21,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:21,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:21,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:21,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:21,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:21,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:21,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:21,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785386690] [2023-12-18 22:33:21,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785386690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:21,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:21,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:21,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984409218] [2023-12-18 22:33:21,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:21,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:21,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:21,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:21,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:21,245 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) [2023-12-18 22:33:24,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:24,821 INFO L93 Difference]: Finished difference Result 4247 states and 7492 transitions. [2023-12-18 22:33:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:33:24,822 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 [2023-12-18 22:33:24,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:24,836 INFO L225 Difference]: With dead ends: 4247 [2023-12-18 22:33:24,836 INFO L226 Difference]: Without dead ends: 3571 [2023-12-18 22:33:24,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:33:24,845 INFO L413 NwaCegarLoop]: 4419 mSDtfsCounter, 5470 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3725 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.7s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:24,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5489 Valid, 21777 Invalid, 3786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3725 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-18 22:33:24,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2023-12-18 22:33:24,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3136. [2023-12-18 22:33:24,933 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) [2023-12-18 22:33:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 5611 transitions. [2023-12-18 22:33:24,943 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 5611 transitions. Word has length 161 [2023-12-18 22:33:24,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:24,944 INFO L495 AbstractCegarLoop]: Abstraction has 3136 states and 5611 transitions. [2023-12-18 22:33:24,944 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) [2023-12-18 22:33:24,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 5611 transitions. [2023-12-18 22:33:24,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:24,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:24,947 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] [2023-12-18 22:33:24,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-18 22:33:24,947 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:24,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:24,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1055202365, now seen corresponding path program 1 times [2023-12-18 22:33:24,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:24,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646849951] [2023-12-18 22:33:24,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:24,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:25,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:25,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:25,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:25,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:25,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:25,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646849951] [2023-12-18 22:33:25,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646849951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:25,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:25,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:25,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825971708] [2023-12-18 22:33:25,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:25,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:25,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:25,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:25,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:25,249 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) [2023-12-18 22:33:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:28,306 INFO L93 Difference]: Finished difference Result 5485 states and 9538 transitions. [2023-12-18 22:33:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:33:28,306 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 [2023-12-18 22:33:28,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:28,320 INFO L225 Difference]: With dead ends: 5485 [2023-12-18 22:33:28,321 INFO L226 Difference]: Without dead ends: 4488 [2023-12-18 22:33:28,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:33:28,325 INFO L413 NwaCegarLoop]: 4230 mSDtfsCounter, 5580 mSDsluCounter, 16851 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5599 SdHoareTripleChecker+Valid, 21081 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:28,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5599 Valid, 21081 Invalid, 3190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-18 22:33:28,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4488 states. [2023-12-18 22:33:28,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4488 to 3779. [2023-12-18 22:33:28,414 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) [2023-12-18 22:33:28,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6652 transitions. [2023-12-18 22:33:28,422 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6652 transitions. Word has length 161 [2023-12-18 22:33:28,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:28,422 INFO L495 AbstractCegarLoop]: Abstraction has 3779 states and 6652 transitions. [2023-12-18 22:33:28,422 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) [2023-12-18 22:33:28,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6652 transitions. [2023-12-18 22:33:28,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:28,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:28,424 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] [2023-12-18 22:33:28,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-18 22:33:28,424 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:28,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:28,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1080680837, now seen corresponding path program 1 times [2023-12-18 22:33:28,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:28,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775737291] [2023-12-18 22:33:28,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:28,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:28,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:28,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:28,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:28,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:28,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:28,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775737291] [2023-12-18 22:33:28,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775737291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:28,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:28,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:28,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754843221] [2023-12-18 22:33:28,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:28,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:28,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:28,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:28,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:28,735 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) [2023-12-18 22:33:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:30,420 INFO L93 Difference]: Finished difference Result 6118 states and 10572 transitions. [2023-12-18 22:33:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:33:30,421 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 [2023-12-18 22:33:30,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:30,435 INFO L225 Difference]: With dead ends: 6118 [2023-12-18 22:33:30,436 INFO L226 Difference]: Without dead ends: 4478 [2023-12-18 22:33:30,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:33:30,441 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5039 mSDsluCounter, 16601 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:30,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5059 Valid, 20809 Invalid, 1969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-18 22:33:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2023-12-18 22:33:30,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 3779. [2023-12-18 22:33:30,532 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) [2023-12-18 22:33:30,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6647 transitions. [2023-12-18 22:33:30,539 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6647 transitions. Word has length 161 [2023-12-18 22:33:30,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:30,539 INFO L495 AbstractCegarLoop]: Abstraction has 3779 states and 6647 transitions. [2023-12-18 22:33:30,540 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) [2023-12-18 22:33:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6647 transitions. [2023-12-18 22:33:30,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:30,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:30,547 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] [2023-12-18 22:33:30,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-18 22:33:30,547 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:30,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:30,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1011032963, now seen corresponding path program 1 times [2023-12-18 22:33:30,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:30,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174496808] [2023-12-18 22:33:30,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:30,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:30,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:30,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:30,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:30,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:30,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174496808] [2023-12-18 22:33:30,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174496808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:30,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:30,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:30,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603914271] [2023-12-18 22:33:30,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:30,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:30,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:30,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:30,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:30,742 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) [2023-12-18 22:33:32,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:32,311 INFO L93 Difference]: Finished difference Result 6107 states and 10536 transitions. [2023-12-18 22:33:32,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:33:32,311 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 [2023-12-18 22:33:32,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:32,330 INFO L225 Difference]: With dead ends: 6107 [2023-12-18 22:33:32,331 INFO L226 Difference]: Without dead ends: 4467 [2023-12-18 22:33:32,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:33:32,335 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5188 mSDsluCounter, 12482 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:32,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5208 Valid, 16690 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1697 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-18 22:33:32,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4467 states. [2023-12-18 22:33:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4467 to 3779. [2023-12-18 22:33:32,411 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) [2023-12-18 22:33:32,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6642 transitions. [2023-12-18 22:33:32,419 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6642 transitions. Word has length 161 [2023-12-18 22:33:32,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:32,419 INFO L495 AbstractCegarLoop]: Abstraction has 3779 states and 6642 transitions. [2023-12-18 22:33:32,419 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) [2023-12-18 22:33:32,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6642 transitions. [2023-12-18 22:33:32,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:32,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:32,421 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] [2023-12-18 22:33:32,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-18 22:33:32,421 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:32,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:32,422 INFO L85 PathProgramCache]: Analyzing trace with hash 387920639, now seen corresponding path program 1 times [2023-12-18 22:33:32,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:32,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959617082] [2023-12-18 22:33:32,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:32,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:32,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:32,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:32,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:32,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:32,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:32,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:32,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959617082] [2023-12-18 22:33:32,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959617082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:32,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:32,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:32,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813863876] [2023-12-18 22:33:32,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:32,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:32,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:32,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:32,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:32,623 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) [2023-12-18 22:33:35,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:35,903 INFO L93 Difference]: Finished difference Result 7839 states and 13357 transitions. [2023-12-18 22:33:35,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:33:35,904 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 [2023-12-18 22:33:35,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:35,920 INFO L225 Difference]: With dead ends: 7839 [2023-12-18 22:33:35,920 INFO L226 Difference]: Without dead ends: 6199 [2023-12-18 22:33:35,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:33:35,927 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 5453 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3646 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:35,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5472 Valid, 21775 Invalid, 3709 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3646 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-18 22:33:35,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6199 states. [2023-12-18 22:33:36,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6199 to 5080. [2023-12-18 22:33:36,043 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) [2023-12-18 22:33:36,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 8743 transitions. [2023-12-18 22:33:36,053 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 8743 transitions. Word has length 161 [2023-12-18 22:33:36,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:36,053 INFO L495 AbstractCegarLoop]: Abstraction has 5080 states and 8743 transitions. [2023-12-18 22:33:36,053 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) [2023-12-18 22:33:36,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 8743 transitions. [2023-12-18 22:33:36,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:36,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:36,055 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] [2023-12-18 22:33:36,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-18 22:33:36,056 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:36,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:36,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1229519811, now seen corresponding path program 1 times [2023-12-18 22:33:36,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:36,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206733209] [2023-12-18 22:33:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:36,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:36,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:36,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:36,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:36,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:36,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:36,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:36,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206733209] [2023-12-18 22:33:36,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206733209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:36,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:36,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:36,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104111957] [2023-12-18 22:33:36,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:36,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:36,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:36,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:36,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:36,257 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) [2023-12-18 22:33:37,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:37,960 INFO L93 Difference]: Finished difference Result 9165 states and 15533 transitions. [2023-12-18 22:33:37,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:33:37,960 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 [2023-12-18 22:33:37,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:37,975 INFO L225 Difference]: With dead ends: 9165 [2023-12-18 22:33:37,975 INFO L226 Difference]: Without dead ends: 6224 [2023-12-18 22:33:37,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:33:37,983 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5035 mSDsluCounter, 16601 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:37,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5055 Valid, 20809 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-18 22:33:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2023-12-18 22:33:38,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 5080. [2023-12-18 22:33:38,095 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) [2023-12-18 22:33:38,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 8734 transitions. [2023-12-18 22:33:38,103 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 8734 transitions. Word has length 161 [2023-12-18 22:33:38,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:38,103 INFO L495 AbstractCegarLoop]: Abstraction has 5080 states and 8734 transitions. [2023-12-18 22:33:38,104 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) [2023-12-18 22:33:38,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 8734 transitions. [2023-12-18 22:33:38,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:38,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:38,106 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] [2023-12-18 22:33:38,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-18 22:33:38,106 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:38,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:38,106 INFO L85 PathProgramCache]: Analyzing trace with hash -866053313, now seen corresponding path program 1 times [2023-12-18 22:33:38,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:38,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755199146] [2023-12-18 22:33:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:38,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:38,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:38,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:38,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:38,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755199146] [2023-12-18 22:33:38,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755199146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:38,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:38,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:38,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482712087] [2023-12-18 22:33:38,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:38,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:38,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:38,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:38,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:38,311 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) [2023-12-18 22:33:41,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:41,577 INFO L93 Difference]: Finished difference Result 12574 states and 21066 transitions. [2023-12-18 22:33:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:33:41,577 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 [2023-12-18 22:33:41,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:41,614 INFO L225 Difference]: With dead ends: 12574 [2023-12-18 22:33:41,615 INFO L226 Difference]: Without dead ends: 9633 [2023-12-18 22:33:41,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:33:41,625 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 5445 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3608 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:41,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5464 Valid, 21775 Invalid, 3671 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3608 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-18 22:33:41,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9633 states. [2023-12-18 22:33:41,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9633 to 7692. [2023-12-18 22:33:41,925 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) [2023-12-18 22:33:41,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7692 states to 7692 states and 12954 transitions. [2023-12-18 22:33:41,939 INFO L78 Accepts]: Start accepts. Automaton has 7692 states and 12954 transitions. Word has length 161 [2023-12-18 22:33:41,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:41,939 INFO L495 AbstractCegarLoop]: Abstraction has 7692 states and 12954 transitions. [2023-12-18 22:33:41,940 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) [2023-12-18 22:33:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 7692 states and 12954 transitions. [2023-12-18 22:33:41,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:41,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:41,943 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] [2023-12-18 22:33:41,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-18 22:33:41,943 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:41,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:41,944 INFO L85 PathProgramCache]: Analyzing trace with hash -577233923, now seen corresponding path program 1 times [2023-12-18 22:33:41,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:41,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112498478] [2023-12-18 22:33:41,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:41,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:42,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:42,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:42,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:42,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:42,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:42,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112498478] [2023-12-18 22:33:42,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112498478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:42,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:42,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:42,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993429475] [2023-12-18 22:33:42,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:42,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:42,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:42,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:42,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:42,127 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) [2023-12-18 22:33:45,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:45,583 INFO L93 Difference]: Finished difference Result 22060 states and 36616 transitions. [2023-12-18 22:33:45,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:33:45,584 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 [2023-12-18 22:33:45,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:45,630 INFO L225 Difference]: With dead ends: 22060 [2023-12-18 22:33:45,630 INFO L226 Difference]: Without dead ends: 16507 [2023-12-18 22:33:45,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:33:45,652 INFO L413 NwaCegarLoop]: 4417 mSDtfsCounter, 5444 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3595 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:45,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5463 Valid, 21775 Invalid, 3658 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3595 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-18 22:33:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16507 states. [2023-12-18 22:33:46,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16507 to 12929. [2023-12-18 22:33:46,107 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) [2023-12-18 22:33:46,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12929 states to 12929 states and 21466 transitions. [2023-12-18 22:33:46,135 INFO L78 Accepts]: Start accepts. Automaton has 12929 states and 21466 transitions. Word has length 161 [2023-12-18 22:33:46,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:46,135 INFO L495 AbstractCegarLoop]: Abstraction has 12929 states and 21466 transitions. [2023-12-18 22:33:46,136 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) [2023-12-18 22:33:46,136 INFO L276 IsEmpty]: Start isEmpty. Operand 12929 states and 21466 transitions. [2023-12-18 22:33:46,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:46,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:46,144 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] [2023-12-18 22:33:46,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-18 22:33:46,144 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:46,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:46,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1122106497, now seen corresponding path program 1 times [2023-12-18 22:33:46,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:46,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454521122] [2023-12-18 22:33:46,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:46,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:46,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:46,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454521122] [2023-12-18 22:33:46,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454521122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:46,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:46,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:46,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374886575] [2023-12-18 22:33:46,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:46,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:46,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:46,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:46,323 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) [2023-12-18 22:33:49,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:49,620 INFO L93 Difference]: Finished difference Result 41031 states and 67906 transitions. [2023-12-18 22:33:49,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:33:49,620 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 [2023-12-18 22:33:49,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:49,700 INFO L225 Difference]: With dead ends: 41031 [2023-12-18 22:33:49,701 INFO L226 Difference]: Without dead ends: 30241 [2023-12-18 22:33:49,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:33:49,731 INFO L413 NwaCegarLoop]: 4230 mSDtfsCounter, 5541 mSDsluCounter, 16851 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5560 SdHoareTripleChecker+Valid, 21081 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:49,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5560 Valid, 21081 Invalid, 3096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-18 22:33:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30241 states. [2023-12-18 22:33:50,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30241 to 23434. [2023-12-18 22:33:50,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23434 states, 21608 states have (on average 1.6274065161051463) internal successors, (35165), 21674 states have internal predecessors, (35165), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2023-12-18 22:33:50,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23434 states to 23434 states and 38698 transitions. [2023-12-18 22:33:50,452 INFO L78 Accepts]: Start accepts. Automaton has 23434 states and 38698 transitions. Word has length 161 [2023-12-18 22:33:50,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:50,452 INFO L495 AbstractCegarLoop]: Abstraction has 23434 states and 38698 transitions. [2023-12-18 22:33:50,452 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) [2023-12-18 22:33:50,452 INFO L276 IsEmpty]: Start isEmpty. Operand 23434 states and 38698 transitions. [2023-12-18 22:33:50,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:50,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:50,465 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] [2023-12-18 22:33:50,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-18 22:33:50,465 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:50,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:50,466 INFO L85 PathProgramCache]: Analyzing trace with hash -446946371, now seen corresponding path program 1 times [2023-12-18 22:33:50,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:50,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492800457] [2023-12-18 22:33:50,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:50,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:50,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:50,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:50,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492800457] [2023-12-18 22:33:50,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492800457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:50,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:50,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:50,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549613995] [2023-12-18 22:33:50,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:50,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:50,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:50,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:50,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:50,633 INFO L87 Difference]: Start difference. First operand 23434 states and 38698 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) [2023-12-18 22:33:52,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:52,692 INFO L93 Difference]: Finished difference Result 51969 states and 86648 transitions. [2023-12-18 22:33:52,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:33:52,700 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 [2023-12-18 22:33:52,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:52,787 INFO L225 Difference]: With dead ends: 51969 [2023-12-18 22:33:52,787 INFO L226 Difference]: Without dead ends: 30674 [2023-12-18 22:33:52,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:33:52,833 INFO L413 NwaCegarLoop]: 4208 mSDtfsCounter, 5194 mSDsluCounter, 12482 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5214 SdHoareTripleChecker+Valid, 16690 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:52,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5214 Valid, 16690 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-18 22:33:52,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30674 states. [2023-12-18 22:33:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30674 to 23434. [2023-12-18 22:33:53,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23434 states, 21608 states have (on average 1.6243983709737135) internal successors, (35100), 21674 states have internal predecessors, (35100), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2023-12-18 22:33:53,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23434 states to 23434 states and 38633 transitions. [2023-12-18 22:33:53,734 INFO L78 Accepts]: Start accepts. Automaton has 23434 states and 38633 transitions. Word has length 161 [2023-12-18 22:33:53,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:33:53,734 INFO L495 AbstractCegarLoop]: Abstraction has 23434 states and 38633 transitions. [2023-12-18 22:33:53,734 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) [2023-12-18 22:33:53,734 INFO L276 IsEmpty]: Start isEmpty. Operand 23434 states and 38633 transitions. [2023-12-18 22:33:53,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:33:53,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:33:53,746 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] [2023-12-18 22:33:53,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-18 22:33:53,746 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:33:53,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:33:53,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1394998337, now seen corresponding path program 1 times [2023-12-18 22:33:53,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:33:53,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425765077] [2023-12-18 22:33:53,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:33:53,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:33:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:53,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:33:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:53,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:33:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:53,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:33:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:53,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:33:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:53,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:33:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:33:53,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:33:53,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:33:53,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425765077] [2023-12-18 22:33:53,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425765077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:33:53,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:33:53,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:33:53,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965182667] [2023-12-18 22:33:53,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:33:53,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:33:53,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:33:53,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:33:53,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:33:53,913 INFO L87 Difference]: Start difference. First operand 23434 states and 38633 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) [2023-12-18 22:33:58,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:33:58,485 INFO L93 Difference]: Finished difference Result 88570 states and 146310 transitions. [2023-12-18 22:33:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:33:58,486 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 [2023-12-18 22:33:58,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:33:58,691 INFO L225 Difference]: With dead ends: 88570 [2023-12-18 22:33:58,692 INFO L226 Difference]: Without dead ends: 67275 [2023-12-18 22:33:58,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:33:58,761 INFO L413 NwaCegarLoop]: 4415 mSDtfsCounter, 5871 mSDsluCounter, 17353 mSDsCounter, 0 mSdLazyCounter, 3515 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5903 SdHoareTripleChecker+Valid, 21768 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-18 22:33:58,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5903 Valid, 21768 Invalid, 3581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3515 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-18 22:33:58,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67275 states. [2023-12-18 22:34:00,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67275 to 44509. [2023-12-18 22:34:00,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44509 states, 40955 states have (on average 1.6115736784275425) internal successors, (66002), 41085 states have internal predecessors, (66002), 2650 states have call successors, (2650), 774 states have call predecessors, (2650), 902 states have return successors, (4965), 2777 states have call predecessors, (4965), 2650 states have call successors, (4965) [2023-12-18 22:34:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44509 states to 44509 states and 73617 transitions. [2023-12-18 22:34:00,665 INFO L78 Accepts]: Start accepts. Automaton has 44509 states and 73617 transitions. Word has length 161 [2023-12-18 22:34:00,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:00,665 INFO L495 AbstractCegarLoop]: Abstraction has 44509 states and 73617 transitions. [2023-12-18 22:34:00,665 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) [2023-12-18 22:34:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 44509 states and 73617 transitions. [2023-12-18 22:34:00,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:34:00,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:00,686 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] [2023-12-18 22:34:00,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-18 22:34:00,686 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:00,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:00,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1829503935, now seen corresponding path program 1 times [2023-12-18 22:34:00,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:00,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273543677] [2023-12-18 22:34:00,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:00,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:34:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:34:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:34:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:34:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:00,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:00,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:00,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273543677] [2023-12-18 22:34:00,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273543677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:00,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:00,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:00,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700032588] [2023-12-18 22:34:00,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:00,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:00,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:00,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:00,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:00,893 INFO L87 Difference]: Start difference. First operand 44509 states and 73617 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) [2023-12-18 22:34:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:07,428 INFO L93 Difference]: Finished difference Result 172395 states and 287072 transitions. [2023-12-18 22:34:07,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:34:07,429 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 [2023-12-18 22:34:07,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:07,820 INFO L225 Difference]: With dead ends: 172395 [2023-12-18 22:34:07,820 INFO L226 Difference]: Without dead ends: 130025 [2023-12-18 22:34:07,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:34:07,903 INFO L413 NwaCegarLoop]: 4414 mSDtfsCounter, 5536 mSDsluCounter, 17350 mSDsCounter, 0 mSdLazyCounter, 4178 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5554 SdHoareTripleChecker+Valid, 21764 SdHoareTripleChecker+Invalid, 4243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:07,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5554 Valid, 21764 Invalid, 4243 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 4178 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-18 22:34:07,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130025 states. [2023-12-18 22:34:11,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130025 to 86014. [2023-12-18 22:34:11,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86014 states, 79068 states have (on average 1.6049476400060707) internal successors, (126900), 79326 states have internal predecessors, (126900), 5146 states have call successors, (5146), 1542 states have call predecessors, (5146), 1798 states have return successors, (11963), 5401 states have call predecessors, (11963), 5146 states have call successors, (11963) [2023-12-18 22:34:11,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86014 states to 86014 states and 144009 transitions. [2023-12-18 22:34:11,766 INFO L78 Accepts]: Start accepts. Automaton has 86014 states and 144009 transitions. Word has length 161 [2023-12-18 22:34:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:11,766 INFO L495 AbstractCegarLoop]: Abstraction has 86014 states and 144009 transitions. [2023-12-18 22:34:11,766 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) [2023-12-18 22:34:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 86014 states and 144009 transitions. [2023-12-18 22:34:11,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:34:11,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:11,803 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] [2023-12-18 22:34:11,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-18 22:34:11,803 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:11,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:11,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2035805055, now seen corresponding path program 1 times [2023-12-18 22:34:11,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:11,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142946443] [2023-12-18 22:34:11,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:11,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:11,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:11,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:34:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:34:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:11,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:34:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:11,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:34:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:11,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:11,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:11,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142946443] [2023-12-18 22:34:11,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142946443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:11,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:11,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:11,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73780920] [2023-12-18 22:34:11,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:11,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:11,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:11,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:11,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:11,972 INFO L87 Difference]: Start difference. First operand 86014 states and 144009 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) [2023-12-18 22:34:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:20,762 INFO L93 Difference]: Finished difference Result 336330 states and 568022 transitions. [2023-12-18 22:34:20,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:34:20,762 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 [2023-12-18 22:34:20,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:21,674 INFO L225 Difference]: With dead ends: 336330 [2023-12-18 22:34:21,674 INFO L226 Difference]: Without dead ends: 252455 [2023-12-18 22:34:21,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:34:21,952 INFO L413 NwaCegarLoop]: 4415 mSDtfsCounter, 5799 mSDsluCounter, 17353 mSDsCounter, 0 mSdLazyCounter, 3489 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5831 SdHoareTripleChecker+Valid, 21768 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:21,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5831 Valid, 21768 Invalid, 3555 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3489 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-18 22:34:22,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252455 states. [2023-12-18 22:34:29,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252455 to 169663. [2023-12-18 22:34:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169663 states, 156061 states have (on average 1.6017711023253727) internal successors, (249974), 156575 states have internal predecessors, (249974), 10010 states have call successors, (10010), 3078 states have call predecessors, (10010), 3590 states have return successors, (30205), 10521 states have call predecessors, (30205), 10010 states have call successors, (30205) [2023-12-18 22:34:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169663 states to 169663 states and 290189 transitions. [2023-12-18 22:34:31,032 INFO L78 Accepts]: Start accepts. Automaton has 169663 states and 290189 transitions. Word has length 161 [2023-12-18 22:34:31,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:34:31,033 INFO L495 AbstractCegarLoop]: Abstraction has 169663 states and 290189 transitions. [2023-12-18 22:34:31,033 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) [2023-12-18 22:34:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 169663 states and 290189 transitions. [2023-12-18 22:34:31,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:34:31,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:34:31,101 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] [2023-12-18 22:34:31,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-18 22:34:31,101 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:34:31,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:34:31,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1329208449, now seen corresponding path program 1 times [2023-12-18 22:34:31,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:34:31,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003780038] [2023-12-18 22:34:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:34:31,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:34:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:34:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:31,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:34:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:31,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:34:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:31,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:34:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:31,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:34:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:34:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:34:31,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:34:31,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003780038] [2023-12-18 22:34:31,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003780038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:34:31,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:34:31,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:34:31,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441111543] [2023-12-18 22:34:31,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:34:31,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:34:31,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:34:31,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:34:31,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:34:31,321 INFO L87 Difference]: Start difference. First operand 169663 states and 290189 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) [2023-12-18 22:34:46,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:34:46,843 INFO L93 Difference]: Finished difference Result 662025 states and 1143580 transitions. [2023-12-18 22:34:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:34:46,844 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 [2023-12-18 22:34:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:34:49,197 INFO L225 Difference]: With dead ends: 662025 [2023-12-18 22:34:49,197 INFO L226 Difference]: Without dead ends: 494501 [2023-12-18 22:34:49,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:34:49,874 INFO L413 NwaCegarLoop]: 4415 mSDtfsCounter, 5763 mSDsluCounter, 17353 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5795 SdHoareTripleChecker+Valid, 21768 SdHoareTripleChecker+Invalid, 3542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-18 22:34:49,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5795 Valid, 21768 Invalid, 3542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-18 22:34:50,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494501 states. [2023-12-18 22:35:05,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494501 to 336960. [2023-12-18 22:35:06,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336960 states, 310302 states have (on average 1.6004795328421988) internal successors, (496632), 311328 states have internal predecessors, (496632), 19482 states have call successors, (19482), 6150 states have call predecessors, (19482), 7174 states have return successors, (79555), 20505 states have call predecessors, (79555), 19482 states have call successors, (79555) [2023-12-18 22:35:08,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336960 states to 336960 states and 595669 transitions. [2023-12-18 22:35:08,577 INFO L78 Accepts]: Start accepts. Automaton has 336960 states and 595669 transitions. Word has length 161 [2023-12-18 22:35:08,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:35:08,578 INFO L495 AbstractCegarLoop]: Abstraction has 336960 states and 595669 transitions. [2023-12-18 22:35:08,578 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) [2023-12-18 22:35:08,578 INFO L276 IsEmpty]: Start isEmpty. Operand 336960 states and 595669 transitions. [2023-12-18 22:35:08,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-18 22:35:08,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:35:08,721 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] [2023-12-18 22:35:08,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-18 22:35:08,721 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:35:08,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:35:08,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2018720961, now seen corresponding path program 1 times [2023-12-18 22:35:08,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:35:08,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609437126] [2023-12-18 22:35:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:35:08,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:35:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:08,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:35:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:08,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-18 22:35:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:08,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-18 22:35:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:08,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-18 22:35:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:08,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-18 22:35:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:35:08,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:35:08,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:35:08,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609437126] [2023-12-18 22:35:08,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609437126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:35:08,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:35:08,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:35:08,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596341034] [2023-12-18 22:35:08,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:35:08,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:35:08,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:35:08,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:35:08,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:35:08,900 INFO L87 Difference]: Start difference. First operand 336960 states and 595669 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)