/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 00:45:17,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 00:45:17,873 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 00:45:17,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 00:45:17,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 00:45:17,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 00:45:17,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 00:45:17,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 00:45:17,902 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 00:45:17,905 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 00:45:17,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 00:45:17,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 00:45:17,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 00:45:17,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 00:45:17,907 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 00:45:17,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 00:45:17,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 00:45:17,908 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 00:45:17,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 00:45:17,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 00:45:17,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 00:45:17,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 00:45:17,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 00:45:17,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 00:45:17,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 00:45:17,909 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 00:45:17,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 00:45:17,910 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 00:45:17,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 00:45:17,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 00:45:17,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 00:45:17,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 00:45:17,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:45:17,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 00:45:17,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 00:45:17,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 00:45:17,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 00:45:17,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 00:45:17,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 00:45:17,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 00:45:17,912 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 00:45:17,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 00:45:17,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 00:45:17,913 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 00:45:18,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 00:45:18,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 00:45:18,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 00:45:18,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 00:45:18,116 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 00:45:18,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.15.cil.c [2023-12-16 00:45:19,190 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 00:45:19,721 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 00:45:19,722 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.15.cil.c [2023-12-16 00:45:19,772 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/032c59502/dcd416f5973d4170985379279e89f980/FLAG6cb7d1c33 [2023-12-16 00:45:19,785 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/032c59502/dcd416f5973d4170985379279e89f980 [2023-12-16 00:45:19,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 00:45:19,788 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 00:45:19,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 00:45:19,790 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 00:45:19,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 00:45:19,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:45:19" (1/1) ... [2023-12-16 00:45:19,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35fff700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:19, skipping insertion in model container [2023-12-16 00:45:19,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:45:19" (1/1) ... [2023-12-16 00:45:19,994 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 00:45:21,269 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_label49+token_ring.15.cil.c[380593,380606] [2023-12-16 00:45:21,286 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_label49+token_ring.15.cil.c[383339,383352] [2023-12-16 00:45:21,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:45:21,496 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 00:45:22,105 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_label49+token_ring.15.cil.c[380593,380606] [2023-12-16 00:45:22,110 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_label49+token_ring.15.cil.c[383339,383352] [2023-12-16 00:45:22,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:45:22,184 INFO L206 MainTranslator]: Completed translation [2023-12-16 00:45:22,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22 WrapperNode [2023-12-16 00:45:22,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 00:45:22,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 00:45:22,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 00:45:22,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 00:45:22,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:22,246 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:22,523 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13297 [2023-12-16 00:45:22,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 00:45:22,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 00:45:22,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 00:45:22,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 00:45:22,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:22,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:22,587 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:22,717 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 00:45:22,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:22,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:22,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:22,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:22,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:22,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:23,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 00:45:23,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 00:45:23,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 00:45:23,053 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 00:45:23,054 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (1/1) ... [2023-12-16 00:45:23,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:45:23,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:45:23,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 00:45:23,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 00:45:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 00:45:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 00:45:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 00:45:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 00:45:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 00:45:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 00:45:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 00:45:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 00:45:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 00:45:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 00:45:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 00:45:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 00:45:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 00:45:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 00:45:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 00:45:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 00:45:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 00:45:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 00:45:23,236 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 00:45:23,238 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 00:45:28,788 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 00:45:28,872 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 00:45:28,872 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-16 00:45:28,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:45:28 BoogieIcfgContainer [2023-12-16 00:45:28,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 00:45:28,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 00:45:28,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 00:45:28,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 00:45:28,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:45:19" (1/3) ... [2023-12-16 00:45:28,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14388774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:45:28, skipping insertion in model container [2023-12-16 00:45:28,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:45:22" (2/3) ... [2023-12-16 00:45:28,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14388774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:45:28, skipping insertion in model container [2023-12-16 00:45:28,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:45:28" (3/3) ... [2023-12-16 00:45:28,878 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.15.cil.c [2023-12-16 00:45:28,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 00:45:28,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 00:45:28,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 00:45:28,952 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;@34563297, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 00:45:28,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 00:45:28,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 2500 states, 2461 states have (on average 1.8748476229175133) internal successors, (4614), 2466 states have internal predecessors, (4614), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 00:45:28,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:28,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:28,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:28,978 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:28,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:28,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2014249201, now seen corresponding path program 1 times [2023-12-16 00:45:28,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:28,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957763007] [2023-12-16 00:45:28,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:28,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:29,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:29,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:29,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:29,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:29,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:29,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:29,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957763007] [2023-12-16 00:45:29,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957763007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:29,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:29,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 00:45:29,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346537879] [2023-12-16 00:45:29,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:29,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 00:45:29,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:29,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 00:45:29,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 00:45:29,421 INFO L87 Difference]: Start difference. First operand has 2500 states, 2461 states have (on average 1.8748476229175133) internal successors, (4614), 2466 states have internal predecessors, (4614), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:31,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:45:31,119 INFO L93 Difference]: Finished difference Result 5133 states and 9582 transitions. [2023-12-16 00:45:31,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 00:45:31,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:45:31,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:45:31,153 INFO L225 Difference]: With dead ends: 5133 [2023-12-16 00:45:31,153 INFO L226 Difference]: Without dead ends: 2635 [2023-12-16 00:45:31,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 00:45:31,162 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 1058 mSDsluCounter, 12236 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 16519 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:45:31,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 16519 Invalid, 1211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 00:45:31,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2023-12-16 00:45:31,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2495. [2023-12-16 00:45:31,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2458 states have (on average 1.8356387306753459) internal successors, (4512), 2461 states have internal predecessors, (4512), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 00:45:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 4568 transitions. [2023-12-16 00:45:31,326 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 4568 transitions. Word has length 172 [2023-12-16 00:45:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:45:31,327 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 4568 transitions. [2023-12-16 00:45:31,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 4568 transitions. [2023-12-16 00:45:31,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:31,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:31,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:31,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 00:45:31,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:31,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:31,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1515692399, now seen corresponding path program 1 times [2023-12-16 00:45:31,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:31,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300650427] [2023-12-16 00:45:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:31,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:31,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:31,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:31,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:31,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:31,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:31,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:31,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300650427] [2023-12-16 00:45:31,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300650427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:31,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:31,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 00:45:31,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142677420] [2023-12-16 00:45:31,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:31,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 00:45:31,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:31,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 00:45:31,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 00:45:31,533 INFO L87 Difference]: Start difference. First operand 2495 states and 4568 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:45:33,171 INFO L93 Difference]: Finished difference Result 2994 states and 5402 transitions. [2023-12-16 00:45:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 00:45:33,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:45:33,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:45:33,181 INFO L225 Difference]: With dead ends: 2994 [2023-12-16 00:45:33,182 INFO L226 Difference]: Without dead ends: 2635 [2023-12-16 00:45:33,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 00:45:33,184 INFO L413 NwaCegarLoop]: 4279 mSDtfsCounter, 1046 mSDsluCounter, 12227 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 16506 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:45:33,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 16506 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 00:45:33,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2023-12-16 00:45:33,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2495. [2023-12-16 00:45:33,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2458 states have (on average 1.8352318958502847) internal successors, (4511), 2461 states have internal predecessors, (4511), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 00:45:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 4567 transitions. [2023-12-16 00:45:33,232 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 4567 transitions. Word has length 172 [2023-12-16 00:45:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:45:33,233 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 4567 transitions. [2023-12-16 00:45:33,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:33,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 4567 transitions. [2023-12-16 00:45:33,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:33,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:33,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:33,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 00:45:33,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:33,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:33,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1009803283, now seen corresponding path program 1 times [2023-12-16 00:45:33,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:33,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166939206] [2023-12-16 00:45:33,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:33,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:33,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:33,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:33,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:33,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:33,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:33,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166939206] [2023-12-16 00:45:33,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166939206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:33,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:33,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 00:45:33,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382237511] [2023-12-16 00:45:33,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:33,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 00:45:33,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:33,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 00:45:33,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 00:45:33,462 INFO L87 Difference]: Start difference. First operand 2495 states and 4567 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:45:36,418 INFO L93 Difference]: Finished difference Result 3506 states and 6263 transitions. [2023-12-16 00:45:36,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 00:45:36,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:45:36,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:45:36,448 INFO L225 Difference]: With dead ends: 3506 [2023-12-16 00:45:36,448 INFO L226 Difference]: Without dead ends: 3151 [2023-12-16 00:45:36,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:45:36,470 INFO L413 NwaCegarLoop]: 4245 mSDtfsCounter, 5554 mSDsluCounter, 12730 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5574 SdHoareTripleChecker+Valid, 16975 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:45:36,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5574 Valid, 16975 Invalid, 2591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 00:45:36,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3151 states. [2023-12-16 00:45:36,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3151 to 2870. [2023-12-16 00:45:36,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2804 states have (on average 1.8131241084165477) internal successors, (5084), 2808 states have internal predecessors, (5084), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2023-12-16 00:45:36,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 5187 transitions. [2023-12-16 00:45:36,598 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 5187 transitions. Word has length 172 [2023-12-16 00:45:36,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:45:36,599 INFO L495 AbstractCegarLoop]: Abstraction has 2870 states and 5187 transitions. [2023-12-16 00:45:36,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:36,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 5187 transitions. [2023-12-16 00:45:36,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:36,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:36,603 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:36,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 00:45:36,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:36,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:36,604 INFO L85 PathProgramCache]: Analyzing trace with hash -4698007, now seen corresponding path program 1 times [2023-12-16 00:45:36,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:36,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26580213] [2023-12-16 00:45:36,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:36,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:36,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:36,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:37,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:37,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:37,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:37,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26580213] [2023-12-16 00:45:37,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26580213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:37,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:37,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:45:37,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092149994] [2023-12-16 00:45:37,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:37,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:45:37,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:37,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:45:37,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:45:37,065 INFO L87 Difference]: Start difference. First operand 2870 states and 5187 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:40,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:45:40,995 INFO L93 Difference]: Finished difference Result 4417 states and 7785 transitions. [2023-12-16 00:45:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:45:40,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:45:40,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:45:41,016 INFO L225 Difference]: With dead ends: 4417 [2023-12-16 00:45:41,025 INFO L226 Difference]: Without dead ends: 3687 [2023-12-16 00:45:41,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:45:41,029 INFO L413 NwaCegarLoop]: 4463 mSDtfsCounter, 5601 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 4012 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5621 SdHoareTripleChecker+Valid, 21973 SdHoareTripleChecker+Invalid, 4079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 00:45:41,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5621 Valid, 21973 Invalid, 4079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 4012 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 00:45:41,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2023-12-16 00:45:41,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3216. [2023-12-16 00:45:41,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.793976289650753) internal successors, (5599), 3126 states have internal predecessors, (5599), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:45:41,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5748 transitions. [2023-12-16 00:45:41,104 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5748 transitions. Word has length 172 [2023-12-16 00:45:41,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:45:41,105 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5748 transitions. [2023-12-16 00:45:41,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:41,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5748 transitions. [2023-12-16 00:45:41,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:41,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:41,112 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:41,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 00:45:41,112 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:41,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:41,113 INFO L85 PathProgramCache]: Analyzing trace with hash 381164395, now seen corresponding path program 1 times [2023-12-16 00:45:41,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:41,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69500632] [2023-12-16 00:45:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:41,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:41,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:41,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:41,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:41,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:41,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:41,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69500632] [2023-12-16 00:45:41,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69500632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:41,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:41,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:45:41,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111387078] [2023-12-16 00:45:41,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:41,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:45:41,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:41,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:45:41,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:45:41,392 INFO L87 Difference]: Start difference. First operand 3216 states and 5748 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:43,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:45:43,329 INFO L93 Difference]: Finished difference Result 4781 states and 8390 transitions. [2023-12-16 00:45:43,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:45:43,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:45:43,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:45:43,342 INFO L225 Difference]: With dead ends: 4781 [2023-12-16 00:45:43,342 INFO L226 Difference]: Without dead ends: 3705 [2023-12-16 00:45:43,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:45:43,347 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5289 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5310 SdHoareTripleChecker+Valid, 16772 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:45:43,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5310 Valid, 16772 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:45:43,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2023-12-16 00:45:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3216. [2023-12-16 00:45:43,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.7930150592758731) internal successors, (5596), 3126 states have internal predecessors, (5596), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:45:43,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5745 transitions. [2023-12-16 00:45:43,435 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5745 transitions. Word has length 172 [2023-12-16 00:45:43,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:45:43,436 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5745 transitions. [2023-12-16 00:45:43,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:43,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5745 transitions. [2023-12-16 00:45:43,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:43,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:43,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:43,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 00:45:43,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:43,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:43,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1982677267, now seen corresponding path program 1 times [2023-12-16 00:45:43,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:43,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943804990] [2023-12-16 00:45:43,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:43,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:43,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:43,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:43,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:43,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:43,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:43,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:43,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:43,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943804990] [2023-12-16 00:45:43,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943804990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:43,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:43,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:45:43,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371509002] [2023-12-16 00:45:43,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:43,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:45:43,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:43,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:45:43,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:45:43,679 INFO L87 Difference]: Start difference. First operand 3216 states and 5745 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:45,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:45:45,790 INFO L93 Difference]: Finished difference Result 4777 states and 8373 transitions. [2023-12-16 00:45:45,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:45:45,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:45:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:45:45,802 INFO L225 Difference]: With dead ends: 4777 [2023-12-16 00:45:45,802 INFO L226 Difference]: Without dead ends: 3701 [2023-12-16 00:45:45,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:45:45,806 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5123 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:45:45,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 20907 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2035 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 00:45:45,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2023-12-16 00:45:45,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3216. [2023-12-16 00:45:45,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.7920538289009933) internal successors, (5593), 3126 states have internal predecessors, (5593), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:45:45,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5742 transitions. [2023-12-16 00:45:45,893 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5742 transitions. Word has length 172 [2023-12-16 00:45:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:45:45,893 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5742 transitions. [2023-12-16 00:45:45,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:45,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5742 transitions. [2023-12-16 00:45:45,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:45,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:45,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:45,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 00:45:45,901 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:45,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:45,902 INFO L85 PathProgramCache]: Analyzing trace with hash 989111083, now seen corresponding path program 1 times [2023-12-16 00:45:45,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:45,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395596117] [2023-12-16 00:45:45,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:45,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:46,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:46,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:46,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:46,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:46,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:46,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395596117] [2023-12-16 00:45:46,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395596117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:46,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:46,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:45:46,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572365463] [2023-12-16 00:45:46,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:46,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:45:46,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:46,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:45:46,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:45:46,122 INFO L87 Difference]: Start difference. First operand 3216 states and 5742 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:48,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:45:48,152 INFO L93 Difference]: Finished difference Result 4773 states and 8356 transitions. [2023-12-16 00:45:48,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:45:48,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:45:48,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:45:48,162 INFO L225 Difference]: With dead ends: 4773 [2023-12-16 00:45:48,163 INFO L226 Difference]: Without dead ends: 3697 [2023-12-16 00:45:48,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:45:48,166 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5121 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5142 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 00:45:48,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5142 Valid, 20907 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 00:45:48,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2023-12-16 00:45:48,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3216. [2023-12-16 00:45:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.7910925985261135) internal successors, (5590), 3126 states have internal predecessors, (5590), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:45:48,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5739 transitions. [2023-12-16 00:45:48,229 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5739 transitions. Word has length 172 [2023-12-16 00:45:48,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:45:48,229 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5739 transitions. [2023-12-16 00:45:48,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5739 transitions. [2023-12-16 00:45:48,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:48,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:48,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:48,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 00:45:48,231 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:48,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:48,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1408876755, now seen corresponding path program 1 times [2023-12-16 00:45:48,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:48,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101966779] [2023-12-16 00:45:48,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:48,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:48,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:48,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:48,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:48,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:48,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:48,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:48,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101966779] [2023-12-16 00:45:48,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101966779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:48,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:48,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:45:48,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315646862] [2023-12-16 00:45:48,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:48,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:45:48,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:48,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:45:48,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:45:48,449 INFO L87 Difference]: Start difference. First operand 3216 states and 5739 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:51,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:45:51,935 INFO L93 Difference]: Finished difference Result 5739 states and 9934 transitions. [2023-12-16 00:45:51,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:45:51,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:45:51,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:45:51,987 INFO L225 Difference]: With dead ends: 5739 [2023-12-16 00:45:51,987 INFO L226 Difference]: Without dead ends: 4663 [2023-12-16 00:45:51,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:45:51,992 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 5686 mSDsluCounter, 16947 mSDsCounter, 0 mSdLazyCounter, 3263 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5706 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:45:51,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5706 Valid, 21201 Invalid, 3374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 3263 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 00:45:51,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2023-12-16 00:45:52,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 3921. [2023-12-16 00:45:52,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 3768 states have (on average 1.7603503184713376) internal successors, (6633), 3775 states have internal predecessors, (6633), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-16 00:45:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 6878 transitions. [2023-12-16 00:45:52,154 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 6878 transitions. Word has length 172 [2023-12-16 00:45:52,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:45:52,155 INFO L495 AbstractCegarLoop]: Abstraction has 3921 states and 6878 transitions. [2023-12-16 00:45:52,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:52,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 6878 transitions. [2023-12-16 00:45:52,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:52,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:52,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:52,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 00:45:52,158 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:52,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:52,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1070589205, now seen corresponding path program 1 times [2023-12-16 00:45:52,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:52,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070583704] [2023-12-16 00:45:52,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:52,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:52,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:52,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:52,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:52,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070583704] [2023-12-16 00:45:52,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070583704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:52,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:52,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:45:52,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917852919] [2023-12-16 00:45:52,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:52,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:45:52,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:52,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:45:52,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:45:52,378 INFO L87 Difference]: Start difference. First operand 3921 states and 6878 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:45:54,174 INFO L93 Difference]: Finished difference Result 6429 states and 11059 transitions. [2023-12-16 00:45:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:45:54,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:45:54,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:45:54,183 INFO L225 Difference]: With dead ends: 6429 [2023-12-16 00:45:54,184 INFO L226 Difference]: Without dead ends: 4648 [2023-12-16 00:45:54,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:45:54,187 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5120 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5141 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:45:54,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5141 Valid, 20907 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:45:54,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2023-12-16 00:45:54,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 3921. [2023-12-16 00:45:54,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 3768 states have (on average 1.7590233545647558) internal successors, (6628), 3775 states have internal predecessors, (6628), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-16 00:45:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 6873 transitions. [2023-12-16 00:45:54,265 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 6873 transitions. Word has length 172 [2023-12-16 00:45:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:45:54,266 INFO L495 AbstractCegarLoop]: Abstraction has 3921 states and 6873 transitions. [2023-12-16 00:45:54,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 6873 transitions. [2023-12-16 00:45:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:54,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:54,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:54,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 00:45:54,268 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:54,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:54,268 INFO L85 PathProgramCache]: Analyzing trace with hash -644034707, now seen corresponding path program 1 times [2023-12-16 00:45:54,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:54,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969009804] [2023-12-16 00:45:54,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:54,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:54,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:54,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:54,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:54,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:54,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:54,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969009804] [2023-12-16 00:45:54,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969009804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:54,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:54,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:45:54,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219121659] [2023-12-16 00:45:54,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:54,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:45:54,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:54,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:45:54,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:45:54,463 INFO L87 Difference]: Start difference. First operand 3921 states and 6873 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:58,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:45:58,240 INFO L93 Difference]: Finished difference Result 8298 states and 14097 transitions. [2023-12-16 00:45:58,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:45:58,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:45:58,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:45:58,254 INFO L225 Difference]: With dead ends: 8298 [2023-12-16 00:45:58,254 INFO L226 Difference]: Without dead ends: 6517 [2023-12-16 00:45:58,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:45:58,259 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5566 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3878 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5586 SdHoareTripleChecker+Valid, 21971 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 00:45:58,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5586 Valid, 21971 Invalid, 3947 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3878 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 00:45:58,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6517 states. [2023-12-16 00:45:58,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6517 to 5331. [2023-12-16 00:45:58,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5062 states have (on average 1.7194784670090872) internal successors, (8704), 5073 states have internal predecessors, (8704), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2023-12-16 00:45:58,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 9147 transitions. [2023-12-16 00:45:58,476 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 9147 transitions. Word has length 172 [2023-12-16 00:45:58,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:45:58,476 INFO L495 AbstractCegarLoop]: Abstraction has 5331 states and 9147 transitions. [2023-12-16 00:45:58,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:45:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 9147 transitions. [2023-12-16 00:45:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:45:58,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:45:58,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:45:58,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 00:45:58,479 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:45:58,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:45:58,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1184464213, now seen corresponding path program 1 times [2023-12-16 00:45:58,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:45:58,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324737746] [2023-12-16 00:45:58,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:45:58,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:45:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:58,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:45:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:58,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:45:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:45:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:58,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:45:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:58,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:45:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:45:58,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:45:58,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:45:58,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324737746] [2023-12-16 00:45:58,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324737746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:45:58,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:45:58,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:45:58,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351978239] [2023-12-16 00:45:58,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:45:58,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:45:58,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:45:58,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:45:58,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:45:58,689 INFO L87 Difference]: Start difference. First operand 5331 states and 9147 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:46:02,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:46:02,537 INFO L93 Difference]: Finished difference Result 13422 states and 22477 transitions. [2023-12-16 00:46:02,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:46:02,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:46:02,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:46:02,556 INFO L225 Difference]: With dead ends: 13422 [2023-12-16 00:46:02,556 INFO L226 Difference]: Without dead ends: 10231 [2023-12-16 00:46:02,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:46:02,565 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5571 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5591 SdHoareTripleChecker+Valid, 21971 SdHoareTripleChecker+Invalid, 3929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 00:46:02,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5591 Valid, 21971 Invalid, 3929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 00:46:02,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10231 states. [2023-12-16 00:46:02,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10231 to 8156. [2023-12-16 00:46:02,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7655 states have (on average 1.680209013716525) internal successors, (12862), 7674 states have internal predecessors, (12862), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-16 00:46:02,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13719 transitions. [2023-12-16 00:46:02,948 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13719 transitions. Word has length 172 [2023-12-16 00:46:02,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:46:02,949 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13719 transitions. [2023-12-16 00:46:02,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:46:02,949 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13719 transitions. [2023-12-16 00:46:02,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:46:02,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:46:02,953 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:46:02,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 00:46:02,953 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:46:02,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:46:02,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1340444755, now seen corresponding path program 1 times [2023-12-16 00:46:02,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:46:02,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753371268] [2023-12-16 00:46:02,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:46:02,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:46:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:03,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:46:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:46:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:03,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:46:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:03,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:46:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:03,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:46:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:03,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:46:03,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:46:03,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753371268] [2023-12-16 00:46:03,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753371268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:46:03,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:46:03,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:46:03,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728581059] [2023-12-16 00:46:03,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:46:03,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:46:03,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:46:03,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:46:03,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:46:03,149 INFO L87 Difference]: Start difference. First operand 8156 states and 13719 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:46:04,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:46:04,825 INFO L93 Difference]: Finished difference Result 16319 states and 27264 transitions. [2023-12-16 00:46:04,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:46:04,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:46:04,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:46:04,846 INFO L225 Difference]: With dead ends: 16319 [2023-12-16 00:46:04,847 INFO L226 Difference]: Without dead ends: 10303 [2023-12-16 00:46:04,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:46:04,861 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5288 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5309 SdHoareTripleChecker+Valid, 16772 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:46:04,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5309 Valid, 16772 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 00:46:04,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2023-12-16 00:46:05,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 8156. [2023-12-16 00:46:05,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7655 states have (on average 1.6779882429784454) internal successors, (12845), 7674 states have internal predecessors, (12845), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-16 00:46:05,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13702 transitions. [2023-12-16 00:46:05,083 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13702 transitions. Word has length 172 [2023-12-16 00:46:05,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:46:05,084 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13702 transitions. [2023-12-16 00:46:05,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:46:05,085 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13702 transitions. [2023-12-16 00:46:05,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:46:05,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:46:05,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:46:05,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 00:46:05,089 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:46:05,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:46:05,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1166652719, now seen corresponding path program 1 times [2023-12-16 00:46:05,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:46:05,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788258385] [2023-12-16 00:46:05,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:46:05,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:46:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:46:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:05,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:46:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:46:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:05,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:46:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:46:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:05,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:46:05,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:46:05,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788258385] [2023-12-16 00:46:05,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788258385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:46:05,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:46:05,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:46:05,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733907001] [2023-12-16 00:46:05,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:46:05,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:46:05,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:46:05,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:46:05,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:46:05,275 INFO L87 Difference]: Start difference. First operand 8156 states and 13702 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:46:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:46:06,965 INFO L93 Difference]: Finished difference Result 16301 states and 27177 transitions. [2023-12-16 00:46:06,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:46:06,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:46:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:46:06,994 INFO L225 Difference]: With dead ends: 16301 [2023-12-16 00:46:06,994 INFO L226 Difference]: Without dead ends: 10285 [2023-12-16 00:46:07,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:46:07,009 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5286 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5307 SdHoareTripleChecker+Valid, 16772 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:46:07,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5307 Valid, 16772 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 00:46:07,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10285 states. [2023-12-16 00:46:07,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10285 to 8156. [2023-12-16 00:46:07,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7655 states have (on average 1.6757674722403657) internal successors, (12828), 7674 states have internal predecessors, (12828), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-16 00:46:07,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13685 transitions. [2023-12-16 00:46:07,232 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13685 transitions. Word has length 172 [2023-12-16 00:46:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:46:07,232 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13685 transitions. [2023-12-16 00:46:07,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:46:07,232 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13685 transitions. [2023-12-16 00:46:07,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:46:07,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:46:07,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:46:07,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 00:46:07,237 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:46:07,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:46:07,237 INFO L85 PathProgramCache]: Analyzing trace with hash -969230483, now seen corresponding path program 1 times [2023-12-16 00:46:07,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:46:07,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897849386] [2023-12-16 00:46:07,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:46:07,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:46:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:07,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:46:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:07,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:46:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:07,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:46:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:07,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:46:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:07,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:46:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:46:07,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:46:07,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897849386] [2023-12-16 00:46:07,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897849386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:46:07,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:46:07,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:46:07,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894958075] [2023-12-16 00:46:07,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:46:07,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:46:07,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:46:07,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:46:07,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:46:07,433 INFO L87 Difference]: Start difference. First operand 8156 states and 13685 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:46:10,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:46:10,897 INFO L93 Difference]: Finished difference Result 23615 states and 39019 transitions. [2023-12-16 00:46:10,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:46:10,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:46:10,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:46:10,935 INFO L225 Difference]: With dead ends: 23615 [2023-12-16 00:46:10,935 INFO L226 Difference]: Without dead ends: 17599 [2023-12-16 00:46:10,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:46:10,953 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5552 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5572 SdHoareTripleChecker+Valid, 21971 SdHoareTripleChecker+Invalid, 3852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:46:10,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5572 Valid, 21971 Invalid, 3852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 00:46:10,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17599 states. [2023-12-16 00:46:11,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17599 to 13872. [2023-12-16 00:46:11,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13872 states, 12907 states have (on average 1.642829472379329) internal successors, (21204), 12942 states have internal predecessors, (21204), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2023-12-16 00:46:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13872 states to 13872 states and 22943 transitions. [2023-12-16 00:46:11,378 INFO L78 Accepts]: Start accepts. Automaton has 13872 states and 22943 transitions. Word has length 172 [2023-12-16 00:46:11,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:46:11,379 INFO L495 AbstractCegarLoop]: Abstraction has 13872 states and 22943 transitions. [2023-12-16 00:46:11,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:46:11,379 INFO L276 IsEmpty]: Start isEmpty. Operand 13872 states and 22943 transitions. [2023-12-16 00:46:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:46:11,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:46:11,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:46:11,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 00:46:11,386 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:46:11,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:46:11,386 INFO L85 PathProgramCache]: Analyzing trace with hash -899582609, now seen corresponding path program 1 times [2023-12-16 00:46:11,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:46:11,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784295532] [2023-12-16 00:46:11,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:46:11,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:46:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:46:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:46:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:11,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:46:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:46:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:11,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:46:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:46:11,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:46:11,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784295532] [2023-12-16 00:46:11,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784295532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:46:11,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:46:11,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:46:11,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852727355] [2023-12-16 00:46:11,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:46:11,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:46:11,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:46:11,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:46:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:46:11,653 INFO L87 Difference]: Start difference. First operand 13872 states and 22943 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:46:15,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:46:15,722 INFO L93 Difference]: Finished difference Result 49361 states and 81209 transitions. [2023-12-16 00:46:15,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:46:15,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:46:15,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:46:15,801 INFO L225 Difference]: With dead ends: 49361 [2023-12-16 00:46:15,801 INFO L226 Difference]: Without dead ends: 37629 [2023-12-16 00:46:15,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:46:15,828 INFO L413 NwaCegarLoop]: 4256 mSDtfsCounter, 6118 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 3169 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6152 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 3283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 3169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 00:46:15,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6152 Valid, 21201 Invalid, 3283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 3169 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 00:46:15,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37629 states. [2023-12-16 00:46:16,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37629 to 25265. [2023-12-16 00:46:16,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25265 states, 23404 states have (on average 1.6218595111946676) internal successors, (37958), 23471 states have internal predecessors, (37958), 1405 states have call successors, (1405), 391 states have call predecessors, (1405), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2023-12-16 00:46:16,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25265 states to 25265 states and 41559 transitions. [2023-12-16 00:46:16,789 INFO L78 Accepts]: Start accepts. Automaton has 25265 states and 41559 transitions. Word has length 172 [2023-12-16 00:46:16,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:46:16,789 INFO L495 AbstractCegarLoop]: Abstraction has 25265 states and 41559 transitions. [2023-12-16 00:46:16,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:46:16,789 INFO L276 IsEmpty]: Start isEmpty. Operand 25265 states and 41559 transitions. [2023-12-16 00:46:16,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:46:16,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:46:16,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:46:16,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 00:46:16,798 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:46:16,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:46:16,798 INFO L85 PathProgramCache]: Analyzing trace with hash -481693907, now seen corresponding path program 1 times [2023-12-16 00:46:16,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:46:16,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231157969] [2023-12-16 00:46:16,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:46:16,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:46:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:16,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:46:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:16,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:46:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:16,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:46:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:16,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:46:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:16,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:46:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:46:16,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:46:16,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:46:16,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231157969] [2023-12-16 00:46:16,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231157969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:46:16,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:46:16,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:46:16,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718482878] [2023-12-16 00:46:16,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:46:16,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:46:16,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:46:16,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:46:16,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:46:16,990 INFO L87 Difference]: Start difference. First operand 25265 states and 41559 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-16 00:46:18,352 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 00:46:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 00:46:18,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-16 00:46:18,353 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 883 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 00:46:18,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1412 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 00:46:18,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 00:46:18,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 00:46:18,355 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (25265states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (1507 states constructed, input type IntersectNwa). [2023-12-16 00:46:18,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 00:46:18,358 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:46:18,360 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 00:46:18,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:46:18 BoogieIcfgContainer [2023-12-16 00:46:18,361 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 00:46:18,361 INFO L158 Benchmark]: Toolchain (without parser) took 58572.82ms. Allocated memory was 165.7MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 79.1MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 852.7MB. Max. memory is 8.0GB. [2023-12-16 00:46:18,361 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 165.7MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 00:46:18,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2394.71ms. Allocated memory was 165.7MB in the beginning and 268.4MB in the end (delta: 102.8MB). Free memory was 78.8MB in the beginning and 155.0MB in the end (delta: -76.2MB). Peak memory consumption was 164.3MB. Max. memory is 8.0GB. [2023-12-16 00:46:18,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 337.53ms. Allocated memory was 268.4MB in the beginning and 447.7MB in the end (delta: 179.3MB). Free memory was 155.0MB in the beginning and 305.4MB in the end (delta: -150.5MB). Peak memory consumption was 105.4MB. Max. memory is 8.0GB. [2023-12-16 00:46:18,362 INFO L158 Benchmark]: Boogie Preprocessor took 528.09ms. Allocated memory is still 447.7MB. Free memory was 305.4MB in the beginning and 248.3MB in the end (delta: 57.1MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. [2023-12-16 00:46:18,362 INFO L158 Benchmark]: RCFGBuilder took 5819.74ms. Allocated memory was 447.7MB in the beginning and 1.2GB in the end (delta: 790.6MB). Free memory was 248.3MB in the beginning and 886.4MB in the end (delta: -638.1MB). Peak memory consumption was 461.9MB. Max. memory is 8.0GB. [2023-12-16 00:46:18,362 INFO L158 Benchmark]: TraceAbstraction took 49486.82ms. Allocated memory was 1.2GB in the beginning and 2.1GB in the end (delta: 868.2MB). Free memory was 885.8MB in the beginning and 1.2GB in the end (delta: -283.1MB). Peak memory consumption was 585.6MB. Max. memory is 8.0GB. [2023-12-16 00:46:18,363 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 165.7MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2394.71ms. Allocated memory was 165.7MB in the beginning and 268.4MB in the end (delta: 102.8MB). Free memory was 78.8MB in the beginning and 155.0MB in the end (delta: -76.2MB). Peak memory consumption was 164.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 337.53ms. Allocated memory was 268.4MB in the beginning and 447.7MB in the end (delta: 179.3MB). Free memory was 155.0MB in the beginning and 305.4MB in the end (delta: -150.5MB). Peak memory consumption was 105.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 528.09ms. Allocated memory is still 447.7MB. Free memory was 305.4MB in the beginning and 248.3MB in the end (delta: 57.1MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. * RCFGBuilder took 5819.74ms. Allocated memory was 447.7MB in the beginning and 1.2GB in the end (delta: 790.6MB). Free memory was 248.3MB in the beginning and 886.4MB in the end (delta: -638.1MB). Peak memory consumption was 461.9MB. Max. memory is 8.0GB. * TraceAbstraction took 49486.82ms. Allocated memory was 1.2GB in the beginning and 2.1GB in the end (delta: 868.2MB). Free memory was 885.8MB in the beginning and 1.2GB in the end (delta: -283.1MB). Peak memory consumption was 585.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (25265states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (1507 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 11094]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11094). Cancelled while NwaCegarLoop was constructing difference of abstraction (25265states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (1507 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2500 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 49.4s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 42.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74192 SdHoareTripleChecker+Valid, 29.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73862 mSDsluCounter, 294737 SdHoareTripleChecker+Invalid, 25.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 229892 mSDsCounter, 1264 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39595 IncrementalHoareTripleChecker+Invalid, 40859 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1264 mSolverCounterUnsat, 64845 mSDtfsCounter, 39595 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 373 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25265occurred in iteration=15, InterpolantAutomatonStates: 149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 27584 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 2752 NumberOfCodeBlocks, 2752 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2736 ConstructedInterpolants, 0 QuantifiedInterpolants, 8061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2023-12-16 00:46:18,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0