/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:40:04,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:40:04,224 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 17:40:04,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:40:04,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:40:04,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:40:04,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:40:04,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:40:04,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:40:04,242 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:40:04,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:40:04,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:40:04,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:40:04,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:40:04,243 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:40:04,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:40:04,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:40:04,244 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:40:04,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:40:04,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:40:04,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:40:04,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:40:04,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:40:04,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:40:04,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:40:04,257 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:40:04,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:40:04,257 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:40:04,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:40:04,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:40:04,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:40:04,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:40:04,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:40:04,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:40:04,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:40:04,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:40:04,259 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:40:04,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:40:04,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:40:04,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:40:04,260 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:40:04,260 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:40:04,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:40:04,261 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:40:04,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:40:04,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:40:04,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:40:04,480 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:40:04,481 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:40:04,482 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.15.cil.c [2023-12-15 17:40:05,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:40:06,130 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:40:06,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.15.cil.c [2023-12-15 17:40:06,185 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3435b572f/6468a8b14c694cbab419197c4993921e/FLAG7a9f62012 [2023-12-15 17:40:06,198 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3435b572f/6468a8b14c694cbab419197c4993921e [2023-12-15 17:40:06,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:40:06,201 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:40:06,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:40:06,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:40:06,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:40:06,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:40:06" (1/1) ... [2023-12-15 17:40:06,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7866989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:06, skipping insertion in model container [2023-12-15 17:40:06,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:40:06" (1/1) ... [2023-12-15 17:40:06,405 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:40:07,554 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_label46+token_ring.15.cil.c[382357,382370] [2023-12-15 17:40:07,576 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_label46+token_ring.15.cil.c[383339,383352] [2023-12-15 17:40:07,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:40:07,814 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:40:08,370 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_label46+token_ring.15.cil.c[382357,382370] [2023-12-15 17:40:08,373 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_label46+token_ring.15.cil.c[383339,383352] [2023-12-15 17:40:08,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:40:08,448 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:40:08,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08 WrapperNode [2023-12-15 17:40:08,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:40:08,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:40:08,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:40:08,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:40:08,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:08,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:08,786 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13297 [2023-12-15 17:40:08,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:40:08,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:40:08,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:40:08,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:40:08,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:08,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:08,961 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:09,024 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]. [2023-12-15 17:40:09,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:09,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:09,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:09,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:09,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:09,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:09,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:40:09,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:40:09,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:40:09,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:40:09,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (1/1) ... [2023-12-15 17:40:09,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:40:09,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:40:09,349 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) [2023-12-15 17:40:09,380 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 [2023-12-15 17:40:09,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:40:09,391 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:40:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:40:09,392 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:40:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:40:09,393 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:40:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:40:09,393 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-15 17:40:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-15 17:40:09,393 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:40:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:40:09,393 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:40:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:40:09,393 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:40:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:40:09,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:40:09,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:40:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:40:09,495 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:40:09,496 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:40:14,828 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:40:14,894 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:40:14,894 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-15 17:40:14,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:40:14 BoogieIcfgContainer [2023-12-15 17:40:14,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:40:14,896 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:40:14,896 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:40:14,898 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:40:14,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:40:06" (1/3) ... [2023-12-15 17:40:14,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab1c260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:40:14, skipping insertion in model container [2023-12-15 17:40:14,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:40:08" (2/3) ... [2023-12-15 17:40:14,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab1c260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:40:14, skipping insertion in model container [2023-12-15 17:40:14,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:40:14" (3/3) ... [2023-12-15 17:40:14,900 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.15.cil.c [2023-12-15 17:40:14,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:40:14,911 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:40:14,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:40:14,972 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;@2c702312, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:40:14,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:40:14,981 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) [2023-12-15 17:40:14,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:14,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:14,996 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] [2023-12-15 17:40:14,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:15,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:15,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1330018896, now seen corresponding path program 1 times [2023-12-15 17:40:15,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:15,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930664300] [2023-12-15 17:40:15,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:15,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:15,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:15,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930664300] [2023-12-15 17:40:15,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930664300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:15,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:15,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:40:15,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601779310] [2023-12-15 17:40:15,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:15,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:40:15,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:15,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:40:15,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:40:15,495 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) [2023-12-15 17:40:17,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:17,438 INFO L93 Difference]: Finished difference Result 5133 states and 9582 transitions. [2023-12-15 17:40:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:40:17,440 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 [2023-12-15 17:40:17,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:17,457 INFO L225 Difference]: With dead ends: 5133 [2023-12-15 17:40:17,457 INFO L226 Difference]: Without dead ends: 2635 [2023-12-15 17:40:17,463 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 [2023-12-15 17:40:17,465 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 1058 mSDsluCounter, 12236 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:17,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 16519 Invalid, 1211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:40:17,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2023-12-15 17:40:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2495. [2023-12-15 17:40:17,547 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) [2023-12-15 17:40:17,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 4568 transitions. [2023-12-15 17:40:17,555 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 4568 transitions. Word has length 172 [2023-12-15 17:40:17,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:17,555 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 4568 transitions. [2023-12-15 17:40:17,555 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) [2023-12-15 17:40:17,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 4568 transitions. [2023-12-15 17:40:17,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:17,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:17,559 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] [2023-12-15 17:40:17,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:40:17,559 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:17,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:17,560 INFO L85 PathProgramCache]: Analyzing trace with hash 831462094, now seen corresponding path program 1 times [2023-12-15 17:40:17,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:17,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220703277] [2023-12-15 17:40:17,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:17,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:17,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:17,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:17,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:17,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:17,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:17,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220703277] [2023-12-15 17:40:17,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220703277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:17,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:17,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:40:17,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301126464] [2023-12-15 17:40:17,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:17,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:40:17,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:17,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:40:17,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:40:17,756 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) [2023-12-15 17:40:19,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:19,456 INFO L93 Difference]: Finished difference Result 2994 states and 5402 transitions. [2023-12-15 17:40:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:40:19,458 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 [2023-12-15 17:40:19,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:19,469 INFO L225 Difference]: With dead ends: 2994 [2023-12-15 17:40:19,470 INFO L226 Difference]: Without dead ends: 2635 [2023-12-15 17:40:19,472 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 [2023-12-15 17:40:19,473 INFO L413 NwaCegarLoop]: 4279 mSDtfsCounter, 1046 mSDsluCounter, 12227 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:19,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 16506 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:40:19,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2023-12-15 17:40:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2495. [2023-12-15 17:40:19,522 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) [2023-12-15 17:40:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 4567 transitions. [2023-12-15 17:40:19,528 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 4567 transitions. Word has length 172 [2023-12-15 17:40:19,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:19,529 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 4567 transitions. [2023-12-15 17:40:19,529 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) [2023-12-15 17:40:19,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 4567 transitions. [2023-12-15 17:40:19,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:19,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:19,531 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] [2023-12-15 17:40:19,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:40:19,531 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:19,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:19,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1694033588, now seen corresponding path program 1 times [2023-12-15 17:40:19,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:19,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697656109] [2023-12-15 17:40:19,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:19,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:19,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:19,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:19,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:19,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:19,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:19,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697656109] [2023-12-15 17:40:19,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697656109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:19,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:19,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:40:19,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690877380] [2023-12-15 17:40:19,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:19,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:40:19,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:19,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:40:19,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:40:19,796 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) [2023-12-15 17:40:22,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:22,593 INFO L93 Difference]: Finished difference Result 3506 states and 6263 transitions. [2023-12-15 17:40:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:40:22,594 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 [2023-12-15 17:40:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:22,604 INFO L225 Difference]: With dead ends: 3506 [2023-12-15 17:40:22,605 INFO L226 Difference]: Without dead ends: 3151 [2023-12-15 17:40:22,607 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 [2023-12-15 17:40:22,608 INFO L413 NwaCegarLoop]: 4245 mSDtfsCounter, 5554 mSDsluCounter, 12730 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:22,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5574 Valid, 16975 Invalid, 2591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 17:40:22,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3151 states. [2023-12-15 17:40:22,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3151 to 2870. [2023-12-15 17:40:22,664 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) [2023-12-15 17:40:22,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 5187 transitions. [2023-12-15 17:40:22,671 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 5187 transitions. Word has length 172 [2023-12-15 17:40:22,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:22,671 INFO L495 AbstractCegarLoop]: Abstraction has 2870 states and 5187 transitions. [2023-12-15 17:40:22,672 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) [2023-12-15 17:40:22,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 5187 transitions. [2023-12-15 17:40:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:22,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:22,674 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] [2023-12-15 17:40:22,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:40:22,674 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:22,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:22,675 INFO L85 PathProgramCache]: Analyzing trace with hash -688928312, now seen corresponding path program 1 times [2023-12-15 17:40:22,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:22,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143465759] [2023-12-15 17:40:22,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:22,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:22,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:22,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143465759] [2023-12-15 17:40:22,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143465759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:22,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:22,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:22,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471530720] [2023-12-15 17:40:22,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:22,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:22,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:22,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:22,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:22,937 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) [2023-12-15 17:40:26,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:26,675 INFO L93 Difference]: Finished difference Result 4417 states and 7785 transitions. [2023-12-15 17:40:26,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:26,688 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 [2023-12-15 17:40:26,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:26,701 INFO L225 Difference]: With dead ends: 4417 [2023-12-15 17:40:26,702 INFO L226 Difference]: Without dead ends: 3687 [2023-12-15 17:40:26,704 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 [2023-12-15 17:40:26,709 INFO L413 NwaCegarLoop]: 4463 mSDtfsCounter, 5601 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 4012 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:26,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5621 Valid, 21973 Invalid, 4079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 4012 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-15 17:40:26,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2023-12-15 17:40:26,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3216. [2023-12-15 17:40:26,770 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) [2023-12-15 17:40:26,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5748 transitions. [2023-12-15 17:40:26,776 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5748 transitions. Word has length 172 [2023-12-15 17:40:26,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:26,776 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5748 transitions. [2023-12-15 17:40:26,777 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) [2023-12-15 17:40:26,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5748 transitions. [2023-12-15 17:40:26,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:26,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:26,778 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] [2023-12-15 17:40:26,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:40:26,778 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:26,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:26,779 INFO L85 PathProgramCache]: Analyzing trace with hash -303065910, now seen corresponding path program 1 times [2023-12-15 17:40:26,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:26,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533967090] [2023-12-15 17:40:26,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:26,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:26,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:27,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:27,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:27,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:27,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:27,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:27,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533967090] [2023-12-15 17:40:27,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533967090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:27,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:27,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:27,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61471905] [2023-12-15 17:40:27,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:27,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:27,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:27,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:27,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:27,149 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) [2023-12-15 17:40:28,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:28,924 INFO L93 Difference]: Finished difference Result 4781 states and 8390 transitions. [2023-12-15 17:40:28,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:28,925 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 [2023-12-15 17:40:28,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:28,937 INFO L225 Difference]: With dead ends: 4781 [2023-12-15 17:40:28,938 INFO L226 Difference]: Without dead ends: 3705 [2023-12-15 17:40:28,943 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 [2023-12-15 17:40:28,944 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5289 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:28,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5310 Valid, 16772 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:40:28,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2023-12-15 17:40:29,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3216. [2023-12-15 17:40:29,029 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) [2023-12-15 17:40:29,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5745 transitions. [2023-12-15 17:40:29,035 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5745 transitions. Word has length 172 [2023-12-15 17:40:29,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:29,035 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5745 transitions. [2023-12-15 17:40:29,035 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) [2023-12-15 17:40:29,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5745 transitions. [2023-12-15 17:40:29,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:29,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:29,037 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] [2023-12-15 17:40:29,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:40:29,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:29,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:29,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1628059724, now seen corresponding path program 1 times [2023-12-15 17:40:29,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:29,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378531645] [2023-12-15 17:40:29,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:29,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:29,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:29,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378531645] [2023-12-15 17:40:29,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378531645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:29,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:29,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:29,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340853124] [2023-12-15 17:40:29,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:29,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:29,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:29,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:29,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:29,287 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) [2023-12-15 17:40:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:31,059 INFO L93 Difference]: Finished difference Result 4777 states and 8373 transitions. [2023-12-15 17:40:31,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:31,060 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 [2023-12-15 17:40:31,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:31,069 INFO L225 Difference]: With dead ends: 4777 [2023-12-15 17:40:31,069 INFO L226 Difference]: Without dead ends: 3701 [2023-12-15 17:40:31,071 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 [2023-12-15 17:40:31,072 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5123 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:31,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 20907 Invalid, 2106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 2035 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:40:31,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2023-12-15 17:40:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3216. [2023-12-15 17:40:31,123 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) [2023-12-15 17:40:31,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5742 transitions. [2023-12-15 17:40:31,128 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5742 transitions. Word has length 172 [2023-12-15 17:40:31,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:31,128 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5742 transitions. [2023-12-15 17:40:31,128 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) [2023-12-15 17:40:31,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5742 transitions. [2023-12-15 17:40:31,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:31,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:31,130 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] [2023-12-15 17:40:31,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:40:31,130 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:31,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:31,130 INFO L85 PathProgramCache]: Analyzing trace with hash 304880778, now seen corresponding path program 1 times [2023-12-15 17:40:31,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:31,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283490557] [2023-12-15 17:40:31,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:31,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:31,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:31,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283490557] [2023-12-15 17:40:31,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283490557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:31,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:31,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:31,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093238666] [2023-12-15 17:40:31,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:31,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:31,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:31,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:31,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:31,321 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) [2023-12-15 17:40:32,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:32,932 INFO L93 Difference]: Finished difference Result 4773 states and 8356 transitions. [2023-12-15 17:40:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:32,933 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 [2023-12-15 17:40:32,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:32,951 INFO L225 Difference]: With dead ends: 4773 [2023-12-15 17:40:32,951 INFO L226 Difference]: Without dead ends: 3697 [2023-12-15 17:40:32,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:40:32,956 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5121 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:32,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5142 Valid, 20907 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:40:32,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2023-12-15 17:40:33,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3216. [2023-12-15 17:40:33,020 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) [2023-12-15 17:40:33,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5739 transitions. [2023-12-15 17:40:33,028 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5739 transitions. Word has length 172 [2023-12-15 17:40:33,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:33,028 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5739 transitions. [2023-12-15 17:40:33,028 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) [2023-12-15 17:40:33,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5739 transitions. [2023-12-15 17:40:33,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:33,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:33,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:33,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:40:33,030 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:33,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:33,030 INFO L85 PathProgramCache]: Analyzing trace with hash -2093107060, now seen corresponding path program 1 times [2023-12-15 17:40:33,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:33,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267931145] [2023-12-15 17:40:33,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:33,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:33,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:33,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:33,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:33,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:33,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267931145] [2023-12-15 17:40:33,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267931145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:33,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:33,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:33,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246570384] [2023-12-15 17:40:33,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:33,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:33,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:33,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:33,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:33,260 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) [2023-12-15 17:40:36,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:36,518 INFO L93 Difference]: Finished difference Result 5739 states and 9934 transitions. [2023-12-15 17:40:36,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:36,518 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 [2023-12-15 17:40:36,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:36,531 INFO L225 Difference]: With dead ends: 5739 [2023-12-15 17:40:36,531 INFO L226 Difference]: Without dead ends: 4663 [2023-12-15 17:40:36,535 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 [2023-12-15 17:40:36,536 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 5686 mSDsluCounter, 16947 mSDsCounter, 0 mSdLazyCounter, 3263 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5706 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:36,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5706 Valid, 21201 Invalid, 3374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 3263 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 17:40:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2023-12-15 17:40:36,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 3921. [2023-12-15 17:40:36,606 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) [2023-12-15 17:40:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 6878 transitions. [2023-12-15 17:40:36,611 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 6878 transitions. Word has length 172 [2023-12-15 17:40:36,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:36,611 INFO L495 AbstractCegarLoop]: Abstraction has 3921 states and 6878 transitions. [2023-12-15 17:40:36,611 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) [2023-12-15 17:40:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 6878 transitions. [2023-12-15 17:40:36,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:36,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:36,613 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] [2023-12-15 17:40:36,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:40:36,613 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:36,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:36,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1754819510, now seen corresponding path program 1 times [2023-12-15 17:40:36,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:36,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000984977] [2023-12-15 17:40:36,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:36,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:36,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:36,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:36,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:36,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:36,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:36,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:36,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000984977] [2023-12-15 17:40:36,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000984977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:36,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:36,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:36,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113679662] [2023-12-15 17:40:36,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:36,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:36,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:36,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:36,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:36,823 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) [2023-12-15 17:40:38,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:38,843 INFO L93 Difference]: Finished difference Result 6429 states and 11059 transitions. [2023-12-15 17:40:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:38,844 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 [2023-12-15 17:40:38,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:38,853 INFO L225 Difference]: With dead ends: 6429 [2023-12-15 17:40:38,854 INFO L226 Difference]: Without dead ends: 4648 [2023-12-15 17:40:38,858 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 [2023-12-15 17:40:38,859 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5120 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:38,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5141 Valid, 20907 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 17:40:38,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2023-12-15 17:40:38,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 3921. [2023-12-15 17:40:38,971 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) [2023-12-15 17:40:38,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 6873 transitions. [2023-12-15 17:40:38,978 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 6873 transitions. Word has length 172 [2023-12-15 17:40:38,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:38,978 INFO L495 AbstractCegarLoop]: Abstraction has 3921 states and 6873 transitions. [2023-12-15 17:40:38,978 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) [2023-12-15 17:40:38,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 6873 transitions. [2023-12-15 17:40:38,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:38,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:38,980 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] [2023-12-15 17:40:38,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 17:40:38,980 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:38,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:38,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1328265012, now seen corresponding path program 1 times [2023-12-15 17:40:38,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:38,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086397956] [2023-12-15 17:40:38,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:38,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:39,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:39,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086397956] [2023-12-15 17:40:39,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086397956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:39,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:39,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:39,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983707802] [2023-12-15 17:40:39,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:39,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:39,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:39,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:39,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:39,194 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) [2023-12-15 17:40:43,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:43,039 INFO L93 Difference]: Finished difference Result 8298 states and 14097 transitions. [2023-12-15 17:40:43,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:43,040 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 [2023-12-15 17:40:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:43,053 INFO L225 Difference]: With dead ends: 8298 [2023-12-15 17:40:43,054 INFO L226 Difference]: Without dead ends: 6517 [2023-12-15 17:40:43,058 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 [2023-12-15 17:40:43,058 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5566 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3878 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.9s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:43,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5586 Valid, 21971 Invalid, 3947 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3878 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-15 17:40:43,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6517 states. [2023-12-15 17:40:43,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6517 to 5331. [2023-12-15 17:40:43,168 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) [2023-12-15 17:40:43,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 9147 transitions. [2023-12-15 17:40:43,176 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 9147 transitions. Word has length 172 [2023-12-15 17:40:43,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:43,177 INFO L495 AbstractCegarLoop]: Abstraction has 5331 states and 9147 transitions. [2023-12-15 17:40:43,177 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) [2023-12-15 17:40:43,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 9147 transitions. [2023-12-15 17:40:43,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:43,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:43,179 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] [2023-12-15 17:40:43,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 17:40:43,179 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:43,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:43,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1868694518, now seen corresponding path program 1 times [2023-12-15 17:40:43,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:43,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987275124] [2023-12-15 17:40:43,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:43,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:43,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:43,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987275124] [2023-12-15 17:40:43,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987275124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:43,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:43,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:43,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888494151] [2023-12-15 17:40:43,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:43,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:43,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:43,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:43,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:43,389 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) [2023-12-15 17:40:47,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:47,499 INFO L93 Difference]: Finished difference Result 13422 states and 22477 transitions. [2023-12-15 17:40:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:47,500 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 [2023-12-15 17:40:47,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:47,553 INFO L225 Difference]: With dead ends: 13422 [2023-12-15 17:40:47,553 INFO L226 Difference]: Without dead ends: 10231 [2023-12-15 17:40:47,576 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 [2023-12-15 17:40:47,576 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, 2.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:47,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5591 Valid, 21971 Invalid, 3929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-15 17:40:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10231 states. [2023-12-15 17:40:47,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10231 to 8156. [2023-12-15 17:40:47,977 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) [2023-12-15 17:40:48,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13719 transitions. [2023-12-15 17:40:48,016 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13719 transitions. Word has length 172 [2023-12-15 17:40:48,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:48,016 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13719 transitions. [2023-12-15 17:40:48,016 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) [2023-12-15 17:40:48,016 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13719 transitions. [2023-12-15 17:40:48,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:48,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:48,021 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] [2023-12-15 17:40:48,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 17:40:48,021 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:48,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:48,021 INFO L85 PathProgramCache]: Analyzing trace with hash -2024675060, now seen corresponding path program 1 times [2023-12-15 17:40:48,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:48,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103341881] [2023-12-15 17:40:48,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:48,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:48,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:48,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103341881] [2023-12-15 17:40:48,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103341881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:48,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:48,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:48,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174662148] [2023-12-15 17:40:48,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:48,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:48,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:48,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:48,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:48,292 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) [2023-12-15 17:40:50,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:50,056 INFO L93 Difference]: Finished difference Result 16319 states and 27264 transitions. [2023-12-15 17:40:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:50,057 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 [2023-12-15 17:40:50,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:50,081 INFO L225 Difference]: With dead ends: 16319 [2023-12-15 17:40:50,082 INFO L226 Difference]: Without dead ends: 10303 [2023-12-15 17:40:50,097 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 [2023-12-15 17:40:50,097 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 [2023-12-15 17:40:50,097 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] [2023-12-15 17:40:50,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2023-12-15 17:40:50,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 8156. [2023-12-15 17:40:50,304 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) [2023-12-15 17:40:50,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13702 transitions. [2023-12-15 17:40:50,317 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13702 transitions. Word has length 172 [2023-12-15 17:40:50,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:50,318 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13702 transitions. [2023-12-15 17:40:50,319 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) [2023-12-15 17:40:50,319 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13702 transitions. [2023-12-15 17:40:50,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:50,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:50,323 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] [2023-12-15 17:40:50,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 17:40:50,323 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:50,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:50,324 INFO L85 PathProgramCache]: Analyzing trace with hash 482422414, now seen corresponding path program 1 times [2023-12-15 17:40:50,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:50,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859927201] [2023-12-15 17:40:50,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:50,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:50,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:50,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:50,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:50,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:50,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:50,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:50,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859927201] [2023-12-15 17:40:50,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859927201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:50,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:50,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:50,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785701837] [2023-12-15 17:40:50,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:50,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:50,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:50,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:50,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:50,624 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) [2023-12-15 17:40:52,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:52,374 INFO L93 Difference]: Finished difference Result 16301 states and 27177 transitions. [2023-12-15 17:40:52,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:52,375 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 [2023-12-15 17:40:52,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:52,397 INFO L225 Difference]: With dead ends: 16301 [2023-12-15 17:40:52,398 INFO L226 Difference]: Without dead ends: 10285 [2023-12-15 17:40:52,413 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 [2023-12-15 17:40:52,413 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 [2023-12-15 17:40:52,413 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] [2023-12-15 17:40:52,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10285 states. [2023-12-15 17:40:52,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10285 to 8156. [2023-12-15 17:40:52,635 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) [2023-12-15 17:40:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13685 transitions. [2023-12-15 17:40:52,650 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13685 transitions. Word has length 172 [2023-12-15 17:40:52,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:52,650 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13685 transitions. [2023-12-15 17:40:52,650 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) [2023-12-15 17:40:52,650 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13685 transitions. [2023-12-15 17:40:52,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:52,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:52,654 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] [2023-12-15 17:40:52,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 17:40:52,655 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:52,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:52,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1653460788, now seen corresponding path program 1 times [2023-12-15 17:40:52,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:52,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976610592] [2023-12-15 17:40:52,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:52,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:52,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:52,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:52,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:52,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:52,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:52,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:52,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:52,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976610592] [2023-12-15 17:40:52,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976610592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:52,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:52,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:52,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114683566] [2023-12-15 17:40:52,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:52,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:52,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:52,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:52,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:52,865 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) [2023-12-15 17:40:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:56,866 INFO L93 Difference]: Finished difference Result 23615 states and 39019 transitions. [2023-12-15 17:40:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:56,866 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 [2023-12-15 17:40:56,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:56,910 INFO L225 Difference]: With dead ends: 23615 [2023-12-15 17:40:56,910 INFO L226 Difference]: Without dead ends: 17599 [2023-12-15 17:40:56,928 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 [2023-12-15 17:40:56,929 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5552 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:56,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5572 Valid, 21971 Invalid, 3852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-15 17:40:56,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17599 states. [2023-12-15 17:40:57,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17599 to 13872. [2023-12-15 17:40:57,334 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) [2023-12-15 17:40:57,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13872 states to 13872 states and 22943 transitions. [2023-12-15 17:40:57,363 INFO L78 Accepts]: Start accepts. Automaton has 13872 states and 22943 transitions. Word has length 172 [2023-12-15 17:40:57,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:57,363 INFO L495 AbstractCegarLoop]: Abstraction has 13872 states and 22943 transitions. [2023-12-15 17:40:57,364 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) [2023-12-15 17:40:57,364 INFO L276 IsEmpty]: Start isEmpty. Operand 13872 states and 22943 transitions. [2023-12-15 17:40:57,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:40:57,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:57,371 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] [2023-12-15 17:40:57,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 17:40:57,371 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:57,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:57,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1583812914, now seen corresponding path program 1 times [2023-12-15 17:40:57,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:57,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091207262] [2023-12-15 17:40:57,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:57,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:57,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:57,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:57,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:57,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:57,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:57,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:57,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091207262] [2023-12-15 17:40:57,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091207262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:57,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:57,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:57,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196994062] [2023-12-15 17:40:57,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:57,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:57,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:57,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:57,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:57,681 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) [2023-12-15 17:41:02,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:41:02,102 INFO L93 Difference]: Finished difference Result 49361 states and 81209 transitions. [2023-12-15 17:41:02,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:41:02,102 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 [2023-12-15 17:41:02,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:41:02,194 INFO L225 Difference]: With dead ends: 49361 [2023-12-15 17:41:02,194 INFO L226 Difference]: Without dead ends: 37629 [2023-12-15 17:41:02,224 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 [2023-12-15 17:41:02,224 INFO L413 NwaCegarLoop]: 4256 mSDtfsCounter, 6118 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 3169 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6152 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 3283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 3169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:41:02,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6152 Valid, 21201 Invalid, 3283 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [114 Valid, 3169 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-15 17:41:02,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37629 states. [2023-12-15 17:41:03,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37629 to 25265. [2023-12-15 17:41:03,054 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) [2023-12-15 17:41:03,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25265 states to 25265 states and 41559 transitions. [2023-12-15 17:41:03,111 INFO L78 Accepts]: Start accepts. Automaton has 25265 states and 41559 transitions. Word has length 172 [2023-12-15 17:41:03,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:41:03,111 INFO L495 AbstractCegarLoop]: Abstraction has 25265 states and 41559 transitions. [2023-12-15 17:41:03,111 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) [2023-12-15 17:41:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 25265 states and 41559 transitions. [2023-12-15 17:41:03,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:41:03,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:41:03,300 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] [2023-12-15 17:41:03,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 17:41:03,300 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:41:03,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:41:03,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1165924212, now seen corresponding path program 1 times [2023-12-15 17:41:03,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:41:03,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969837633] [2023-12-15 17:41:03,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:41:03,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:41:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:41:03,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:41:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:41:03,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:41:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:41:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:41:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:41:03,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:41:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:41:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:41:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:41:03,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:41:03,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:41:03,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969837633] [2023-12-15 17:41:03,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969837633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:41:03,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:41:03,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:41:03,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638986086] [2023-12-15 17:41:03,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:41:03,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:41:03,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:41:03,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:41:03,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:41:03,512 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... [2023-12-15 17:41:04,391 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 [2023-12-15 17:41:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 17:41:04,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-15 17:41:04,428 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 428 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:41:04,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 812 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 17:41:04,429 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:41:04,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 17:41:04,429 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (25265states) and FLOYD_HOARE automaton (currently 8 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-30-1 term,while SimplifyDDA2 was simplifying 30 xjuncts wrt. a ATOM-1 context. [2023-12-15 17:41:04,435 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:41:04,437 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:41:04,440 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:41:04,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:41:04 BoogieIcfgContainer [2023-12-15 17:41:04,458 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:41:04,472 INFO L158 Benchmark]: Toolchain (without parser) took 58258.23ms. Allocated memory was 318.8MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 230.4MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 521.1MB. Max. memory is 8.0GB. [2023-12-15 17:41:04,475 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 225.4MB. Free memory is still 174.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:41:04,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2248.93ms. Allocated memory was 318.8MB in the beginning and 499.1MB in the end (delta: 180.4MB). Free memory was 230.1MB in the beginning and 335.3MB in the end (delta: -105.2MB). Peak memory consumption was 121.6MB. Max. memory is 8.0GB. [2023-12-15 17:41:04,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 335.04ms. Allocated memory is still 499.1MB. Free memory was 335.3MB in the beginning and 341.6MB in the end (delta: -6.3MB). Peak memory consumption was 72.9MB. Max. memory is 8.0GB. [2023-12-15 17:41:04,477 INFO L158 Benchmark]: Boogie Preprocessor took 539.29ms. Allocated memory is still 499.1MB. Free memory was 341.6MB in the beginning and 321.2MB in the end (delta: 20.4MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. [2023-12-15 17:41:04,477 INFO L158 Benchmark]: RCFGBuilder took 5567.37ms. Allocated memory was 499.1MB in the beginning and 1.4GB in the end (delta: 919.6MB). Free memory was 321.2MB in the beginning and 953.5MB in the end (delta: -632.3MB). Peak memory consumption was 583.0MB. Max. memory is 8.0GB. [2023-12-15 17:41:04,477 INFO L158 Benchmark]: TraceAbstraction took 49562.79ms. Allocated memory was 1.4GB in the beginning and 2.3GB in the end (delta: 863.0MB). Free memory was 952.9MB in the beginning and 1.7GB in the end (delta: -720.3MB). Peak memory consumption was 142.1MB. Max. memory is 8.0GB. [2023-12-15 17:41:04,482 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 225.4MB. Free memory is still 174.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2248.93ms. Allocated memory was 318.8MB in the beginning and 499.1MB in the end (delta: 180.4MB). Free memory was 230.1MB in the beginning and 335.3MB in the end (delta: -105.2MB). Peak memory consumption was 121.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 335.04ms. Allocated memory is still 499.1MB. Free memory was 335.3MB in the beginning and 341.6MB in the end (delta: -6.3MB). Peak memory consumption was 72.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 539.29ms. Allocated memory is still 499.1MB. Free memory was 341.6MB in the beginning and 321.2MB in the end (delta: 20.4MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. * RCFGBuilder took 5567.37ms. Allocated memory was 499.1MB in the beginning and 1.4GB in the end (delta: 919.6MB). Free memory was 321.2MB in the beginning and 953.5MB in the end (delta: -632.3MB). Peak memory consumption was 583.0MB. Max. memory is 8.0GB. * TraceAbstraction took 49562.79ms. Allocated memory was 1.4GB in the beginning and 2.3GB in the end (delta: 863.0MB). Free memory was 952.9MB in the beginning and 1.7GB in the end (delta: -720.3MB). Peak memory consumption was 142.1MB. 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 8 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-30-1 term,while SimplifyDDA2 was simplifying 30 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 11133]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11133). Cancelled while NwaCegarLoop was constructing difference of abstraction (25265states) and FLOYD_HOARE automaton (currently 8 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-30-1 term,while SimplifyDDA2 was simplifying 30 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2500 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 49.5s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 42.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73737 SdHoareTripleChecker+Valid, 28.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73407 mSDsluCounter, 294137 SdHoareTripleChecker+Invalid, 25.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 229412 mSDsCounter, 1264 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38545 IncrementalHoareTripleChecker+Invalid, 39809 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1264 mSolverCounterUnsat, 64725 mSDtfsCounter, 38545 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 10.1s 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: 3.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 27584 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.8s 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