/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_label45+token_ring.07.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:36:55,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:36:56,053 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 17:36:56,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:36:56,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:36:56,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:36:56,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:36:56,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:36:56,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:36:56,084 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:36:56,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:36:56,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:36:56,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:36:56,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:36:56,086 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:36:56,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:36:56,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:36:56,086 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:36:56,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:36:56,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:36:56,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:36:56,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:36:56,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:36:56,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:36:56,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:36:56,089 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:36:56,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:36:56,089 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:36:56,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:36:56,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:36:56,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:36:56,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:36:56,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:36:56,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:36:56,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:36:56,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:36:56,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:36:56,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:36:56,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:36:56,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:36:56,092 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:36:56,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:36:56,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:36:56,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:36:56,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:36:56,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:36:56,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:36:56,309 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:36:56,310 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:36:56,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-1.c [2023-12-15 17:36:57,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:36:57,800 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:36:57,801 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-1.c [2023-12-15 17:36:57,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63ce565f5/a5c7087753be4cc3a547e873fb062ca1/FLAGadd176d93 [2023-12-15 17:36:57,938 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63ce565f5/a5c7087753be4cc3a547e873fb062ca1 [2023-12-15 17:36:57,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:36:57,941 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:36:57,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:36:57,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:36:57,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:36:57,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:36:57" (1/1) ... [2023-12-15 17:36:57,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235d1e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:36:57, skipping insertion in model container [2023-12-15 17:36:57,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:36:57" (1/1) ... [2023-12-15 17:36:58,100 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:36:59,399 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_label45+token_ring.07.cil-1.c[380323,380336] [2023-12-15 17:36:59,423 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_label45+token_ring.07.cil-1.c[383339,383352] [2023-12-15 17:36:59,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:36:59,586 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:37:00,214 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_label45+token_ring.07.cil-1.c[380323,380336] [2023-12-15 17:37:00,219 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_label45+token_ring.07.cil-1.c[383339,383352] [2023-12-15 17:37:00,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:37:00,289 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:37:00,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00 WrapperNode [2023-12-15 17:37:00,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:37:00,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:37:00,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:37:00,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:37:00,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:00,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:00,774 INFO L138 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12933 [2023-12-15 17:37:00,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:37:00,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:37:00,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:37:00,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:37:00,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:00,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:00,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:00,888 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 17:37:00,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:00,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:01,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:01,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:01,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:01,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:01,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:37:01,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:37:01,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:37:01,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:37:01,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (1/1) ... [2023-12-15 17:37:01,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:37:01,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:37:01,310 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 17:37:01,342 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 17:37:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:37:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:37:01,350 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:37:01,351 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:37:01,352 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:37:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:37:01,352 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:37:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:37:01,352 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:37:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:37:01,352 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:37:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:37:01,352 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:37:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:37:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:37:01,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:37:01,461 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:37:01,462 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:37:06,863 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:37:06,936 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:37:06,937 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-12-15 17:37:06,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:37:06 BoogieIcfgContainer [2023-12-15 17:37:06,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:37:06,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:37:06,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:37:06,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:37:06,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:36:57" (1/3) ... [2023-12-15 17:37:06,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5e7d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:37:06, skipping insertion in model container [2023-12-15 17:37:06,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:37:00" (2/3) ... [2023-12-15 17:37:06,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5e7d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:37:06, skipping insertion in model container [2023-12-15 17:37:06,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:37:06" (3/3) ... [2023-12-15 17:37:06,943 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.07.cil-1.c [2023-12-15 17:37:06,955 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:37:06,955 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:37:07,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:37:07,011 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;@5bc0e4f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:37:07,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:37:07,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 2356 states, 2326 states have (on average 1.880481513327601) internal successors, (4374), 2329 states have internal predecessors, (4374), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-15 17:37:07,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:07,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:07,034 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] [2023-12-15 17:37:07,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:07,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:07,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1751521651, now seen corresponding path program 1 times [2023-12-15 17:37:07,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:07,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022473003] [2023-12-15 17:37:07,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:07,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:07,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:07,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:07,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:07,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:07,356 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 17:37:07,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:07,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022473003] [2023-12-15 17:37:07,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022473003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:07,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:07,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:37:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101494041] [2023-12-15 17:37:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:07,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:37:07,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:07,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:37:07,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:37:07,387 INFO L87 Difference]: Start difference. First operand has 2356 states, 2326 states have (on average 1.880481513327601) internal successors, (4374), 2329 states have internal predecessors, (4374), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:08,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:08,543 INFO L93 Difference]: Finished difference Result 4782 states and 8954 transitions. [2023-12-15 17:37:08,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:37:08,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:08,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:08,560 INFO L225 Difference]: With dead ends: 4782 [2023-12-15 17:37:08,560 INFO L226 Difference]: Without dead ends: 2432 [2023-12-15 17:37:08,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 17:37:08,569 INFO L413 NwaCegarLoop]: 4162 mSDtfsCounter, 618 mSDsluCounter, 12094 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 16256 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:08,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 16256 Invalid, 726 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 17:37:08,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2023-12-15 17:37:08,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2352. [2023-12-15 17:37:08,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 2323 states have (on average 1.8441670253981919) internal successors, (4284), 2325 states have internal predecessors, (4284), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-15 17:37:08,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 4326 transitions. [2023-12-15 17:37:08,656 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 4326 transitions. Word has length 111 [2023-12-15 17:37:08,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:08,656 INFO L495 AbstractCegarLoop]: Abstraction has 2352 states and 4326 transitions. [2023-12-15 17:37:08,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:08,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 4326 transitions. [2023-12-15 17:37:08,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:08,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:08,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:37:08,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:37:08,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:08,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:08,660 INFO L85 PathProgramCache]: Analyzing trace with hash -637042379, now seen corresponding path program 1 times [2023-12-15 17:37:08,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:08,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312913518] [2023-12-15 17:37:08,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:08,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:08,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:08,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:08,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:08,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:08,876 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 17:37:08,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:08,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312913518] [2023-12-15 17:37:08,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312913518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:08,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:08,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:37:08,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892813924] [2023-12-15 17:37:08,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:08,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:37:08,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:08,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:37:08,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:37:08,879 INFO L87 Difference]: Start difference. First operand 2352 states and 4326 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:10,323 INFO L93 Difference]: Finished difference Result 2957 states and 5322 transitions. [2023-12-15 17:37:10,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:37:10,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:10,333 INFO L225 Difference]: With dead ends: 2957 [2023-12-15 17:37:10,333 INFO L226 Difference]: Without dead ends: 2739 [2023-12-15 17:37:10,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:37:10,335 INFO L413 NwaCegarLoop]: 4137 mSDtfsCounter, 4889 mSDsluCounter, 12392 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4903 SdHoareTripleChecker+Valid, 16529 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:10,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4903 Valid, 16529 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 17:37:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2023-12-15 17:37:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2580. [2023-12-15 17:37:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 2528 states have (on average 1.8263449367088607) internal successors, (4617), 2531 states have internal predecessors, (4617), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2023-12-15 17:37:10,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 4694 transitions. [2023-12-15 17:37:10,398 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 4694 transitions. Word has length 111 [2023-12-15 17:37:10,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:10,399 INFO L495 AbstractCegarLoop]: Abstraction has 2580 states and 4694 transitions. [2023-12-15 17:37:10,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:10,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 4694 transitions. [2023-12-15 17:37:10,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:10,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:10,400 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] [2023-12-15 17:37:10,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:37:10,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:10,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:10,401 INFO L85 PathProgramCache]: Analyzing trace with hash 641956281, now seen corresponding path program 1 times [2023-12-15 17:37:10,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:10,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138003123] [2023-12-15 17:37:10,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:10,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:10,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:10,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:10,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:10,715 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 17:37:10,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:10,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138003123] [2023-12-15 17:37:10,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138003123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:10,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:10,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:10,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273426841] [2023-12-15 17:37:10,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:10,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:10,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:10,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:10,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:10,717 INFO L87 Difference]: Start difference. First operand 2580 states and 4694 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:12,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:12,648 INFO L93 Difference]: Finished difference Result 3502 states and 6208 transitions. [2023-12-15 17:37:12,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:37:12,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:12,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:12,660 INFO L225 Difference]: With dead ends: 3502 [2023-12-15 17:37:12,660 INFO L226 Difference]: Without dead ends: 3056 [2023-12-15 17:37:12,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:37:12,662 INFO L413 NwaCegarLoop]: 4270 mSDtfsCounter, 4904 mSDsluCounter, 16836 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:12,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4918 Valid, 21106 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 17:37:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2023-12-15 17:37:12,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 2791. [2023-12-15 17:37:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2716 states have (on average 1.8100147275405007) internal successors, (4916), 2720 states have internal predecessors, (4916), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2023-12-15 17:37:12,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 5027 transitions. [2023-12-15 17:37:12,729 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 5027 transitions. Word has length 111 [2023-12-15 17:37:12,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:12,729 INFO L495 AbstractCegarLoop]: Abstraction has 2791 states and 5027 transitions. [2023-12-15 17:37:12,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:12,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 5027 transitions. [2023-12-15 17:37:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:12,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:12,731 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] [2023-12-15 17:37:12,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:37:12,731 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:12,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:12,775 INFO L85 PathProgramCache]: Analyzing trace with hash -977018633, now seen corresponding path program 1 times [2023-12-15 17:37:12,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:12,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530954056] [2023-12-15 17:37:12,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:12,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:12,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:12,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:12,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:12,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:12,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:12,940 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 17:37:12,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:12,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530954056] [2023-12-15 17:37:12,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530954056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:12,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:12,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:12,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512175450] [2023-12-15 17:37:12,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:12,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:12,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:12,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:12,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:12,942 INFO L87 Difference]: Start difference. First operand 2791 states and 5027 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:14,811 INFO L93 Difference]: Finished difference Result 4300 states and 7499 transitions. [2023-12-15 17:37:14,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:37:14,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:14,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:14,824 INFO L225 Difference]: With dead ends: 4300 [2023-12-15 17:37:14,824 INFO L226 Difference]: Without dead ends: 3643 [2023-12-15 17:37:14,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:37:14,827 INFO L413 NwaCegarLoop]: 4268 mSDtfsCounter, 4902 mSDsluCounter, 16836 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 21104 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:14,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4916 Valid, 21104 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 17:37:14,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2023-12-15 17:37:14,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 3214. [2023-12-15 17:37:14,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7830585192369868) internal successors, (5515), 3099 states have internal predecessors, (5515), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-15 17:37:14,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5698 transitions. [2023-12-15 17:37:14,892 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5698 transitions. Word has length 111 [2023-12-15 17:37:14,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:14,893 INFO L495 AbstractCegarLoop]: Abstraction has 3214 states and 5698 transitions. [2023-12-15 17:37:14,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:14,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5698 transitions. [2023-12-15 17:37:14,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:14,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:14,894 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] [2023-12-15 17:37:14,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:37:14,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:14,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:14,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1860527623, now seen corresponding path program 1 times [2023-12-15 17:37:14,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:14,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879550501] [2023-12-15 17:37:14,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:14,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:15,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:15,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:15,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:15,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:15,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:15,114 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 17:37:15,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:15,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879550501] [2023-12-15 17:37:15,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879550501] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:15,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:15,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:15,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667686332] [2023-12-15 17:37:15,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:15,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:15,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:15,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:15,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:15,116 INFO L87 Difference]: Start difference. First operand 3214 states and 5698 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:16,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:16,061 INFO L93 Difference]: Finished difference Result 4713 states and 8163 transitions. [2023-12-15 17:37:16,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:37:16,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:16,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:16,072 INFO L225 Difference]: With dead ends: 4713 [2023-12-15 17:37:16,073 INFO L226 Difference]: Without dead ends: 3633 [2023-12-15 17:37:16,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:37:16,076 INFO L413 NwaCegarLoop]: 4124 mSDtfsCounter, 4645 mSDsluCounter, 16334 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4660 SdHoareTripleChecker+Valid, 20458 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:16,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4660 Valid, 20458 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 17:37:16,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2023-12-15 17:37:16,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3214. [2023-12-15 17:37:16,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7814419657290657) internal successors, (5510), 3099 states have internal predecessors, (5510), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-15 17:37:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5693 transitions. [2023-12-15 17:37:16,149 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5693 transitions. Word has length 111 [2023-12-15 17:37:16,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:16,149 INFO L495 AbstractCegarLoop]: Abstraction has 3214 states and 5693 transitions. [2023-12-15 17:37:16,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:16,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5693 transitions. [2023-12-15 17:37:16,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:16,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:16,151 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] [2023-12-15 17:37:16,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:37:16,151 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:16,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:16,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1889027913, now seen corresponding path program 1 times [2023-12-15 17:37:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:16,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302875120] [2023-12-15 17:37:16,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:16,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:16,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:16,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:16,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:16,262 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 17:37:16,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:16,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302875120] [2023-12-15 17:37:16,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302875120] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:16,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:16,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:16,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185965741] [2023-12-15 17:37:16,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:16,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:16,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:16,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:16,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:16,264 INFO L87 Difference]: Start difference. First operand 3214 states and 5693 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:17,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:17,181 INFO L93 Difference]: Finished difference Result 4707 states and 8137 transitions. [2023-12-15 17:37:17,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:37:17,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:17,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:17,194 INFO L225 Difference]: With dead ends: 4707 [2023-12-15 17:37:17,194 INFO L226 Difference]: Without dead ends: 3627 [2023-12-15 17:37:17,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:37:17,198 INFO L413 NwaCegarLoop]: 4124 mSDtfsCounter, 4643 mSDsluCounter, 16334 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4658 SdHoareTripleChecker+Valid, 20458 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:17,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4658 Valid, 20458 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 17:37:17,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2023-12-15 17:37:17,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3214. [2023-12-15 17:37:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7798254122211445) internal successors, (5505), 3099 states have internal predecessors, (5505), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-15 17:37:17,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5688 transitions. [2023-12-15 17:37:17,290 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5688 transitions. Word has length 111 [2023-12-15 17:37:17,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:17,290 INFO L495 AbstractCegarLoop]: Abstraction has 3214 states and 5688 transitions. [2023-12-15 17:37:17,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:17,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5688 transitions. [2023-12-15 17:37:17,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:17,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:17,292 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] [2023-12-15 17:37:17,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:37:17,293 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:17,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:17,293 INFO L85 PathProgramCache]: Analyzing trace with hash 465357369, now seen corresponding path program 1 times [2023-12-15 17:37:17,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:17,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086360342] [2023-12-15 17:37:17,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:17,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:17,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:17,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:17,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:17,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:17,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:17,415 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 17:37:17,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:17,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086360342] [2023-12-15 17:37:17,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086360342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:17,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:17,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:17,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142328490] [2023-12-15 17:37:17,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:17,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:17,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:17,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:17,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:17,417 INFO L87 Difference]: Start difference. First operand 3214 states and 5688 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:18,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:18,298 INFO L93 Difference]: Finished difference Result 4700 states and 8109 transitions. [2023-12-15 17:37:18,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:37:18,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:18,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:18,311 INFO L225 Difference]: With dead ends: 4700 [2023-12-15 17:37:18,312 INFO L226 Difference]: Without dead ends: 3620 [2023-12-15 17:37:18,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:37:18,316 INFO L413 NwaCegarLoop]: 4124 mSDtfsCounter, 4744 mSDsluCounter, 12269 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 16393 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:18,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4759 Valid, 16393 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 17:37:18,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3620 states. [2023-12-15 17:37:18,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3620 to 3214. [2023-12-15 17:37:18,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7782088587132234) internal successors, (5500), 3099 states have internal predecessors, (5500), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-15 17:37:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5683 transitions. [2023-12-15 17:37:18,426 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5683 transitions. Word has length 111 [2023-12-15 17:37:18,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:18,427 INFO L495 AbstractCegarLoop]: Abstraction has 3214 states and 5683 transitions. [2023-12-15 17:37:18,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:18,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5683 transitions. [2023-12-15 17:37:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:18,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:18,429 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] [2023-12-15 17:37:18,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:37:18,430 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:18,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:18,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1952546697, now seen corresponding path program 1 times [2023-12-15 17:37:18,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:18,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188173315] [2023-12-15 17:37:18,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:18,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:18,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:18,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:18,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:18,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:18,568 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 17:37:18,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:18,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188173315] [2023-12-15 17:37:18,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188173315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:18,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:18,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:18,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535066567] [2023-12-15 17:37:18,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:18,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:18,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:18,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:18,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:18,570 INFO L87 Difference]: Start difference. First operand 3214 states and 5683 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:19,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:19,675 INFO L93 Difference]: Finished difference Result 4688 states and 8071 transitions. [2023-12-15 17:37:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:37:19,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:19,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:19,703 INFO L225 Difference]: With dead ends: 4688 [2023-12-15 17:37:19,703 INFO L226 Difference]: Without dead ends: 3608 [2023-12-15 17:37:19,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:37:19,709 INFO L413 NwaCegarLoop]: 4124 mSDtfsCounter, 4643 mSDsluCounter, 16334 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4658 SdHoareTripleChecker+Valid, 20458 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:19,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4658 Valid, 20458 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 17:37:19,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2023-12-15 17:37:19,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3214. [2023-12-15 17:37:19,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3093 states have (on average 1.7765923052053023) internal successors, (5495), 3099 states have internal predecessors, (5495), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-15 17:37:19,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5678 transitions. [2023-12-15 17:37:19,780 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5678 transitions. Word has length 111 [2023-12-15 17:37:19,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:19,780 INFO L495 AbstractCegarLoop]: Abstraction has 3214 states and 5678 transitions. [2023-12-15 17:37:19,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:19,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5678 transitions. [2023-12-15 17:37:19,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:19,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:19,782 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] [2023-12-15 17:37:19,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:37:19,782 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:19,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:19,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1347726901, now seen corresponding path program 1 times [2023-12-15 17:37:19,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:19,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817377621] [2023-12-15 17:37:19,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:19,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:19,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:19,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:19,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:19,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:19,914 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 17:37:19,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:19,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817377621] [2023-12-15 17:37:19,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817377621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:19,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:19,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:19,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825640595] [2023-12-15 17:37:19,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:19,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:19,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:19,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:19,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:19,916 INFO L87 Difference]: Start difference. First operand 3214 states and 5678 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:21,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:21,760 INFO L93 Difference]: Finished difference Result 6166 states and 10402 transitions. [2023-12-15 17:37:21,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:37:21,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:21,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:21,777 INFO L225 Difference]: With dead ends: 6166 [2023-12-15 17:37:21,777 INFO L226 Difference]: Without dead ends: 5086 [2023-12-15 17:37:21,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:37:21,782 INFO L413 NwaCegarLoop]: 4266 mSDtfsCounter, 5132 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:21,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5154 Valid, 21097 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:37:21,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2023-12-15 17:37:21,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 4075. [2023-12-15 17:37:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 3866 states have (on average 1.734092084842214) internal successors, (6704), 3876 states have internal predecessors, (6704), 145 states have call successors, (145), 54 states have call predecessors, (145), 62 states have return successors, (180), 152 states have call predecessors, (180), 145 states have call successors, (180) [2023-12-15 17:37:21,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 7029 transitions. [2023-12-15 17:37:21,892 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 7029 transitions. Word has length 111 [2023-12-15 17:37:21,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:21,892 INFO L495 AbstractCegarLoop]: Abstraction has 4075 states and 7029 transitions. [2023-12-15 17:37:21,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:21,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 7029 transitions. [2023-12-15 17:37:21,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:21,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:21,894 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] [2023-12-15 17:37:21,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 17:37:21,894 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:21,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:21,894 INFO L85 PathProgramCache]: Analyzing trace with hash 761450679, now seen corresponding path program 1 times [2023-12-15 17:37:21,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:21,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586736258] [2023-12-15 17:37:21,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:21,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:21,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:22,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:22,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:22,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:22,029 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 17:37:22,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:22,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586736258] [2023-12-15 17:37:22,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586736258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:22,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:22,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:22,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751438457] [2023-12-15 17:37:22,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:22,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:22,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:22,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:22,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:22,030 INFO L87 Difference]: Start difference. First operand 4075 states and 7029 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:24,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:24,234 INFO L93 Difference]: Finished difference Result 9483 states and 15673 transitions. [2023-12-15 17:37:24,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:37:24,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:24,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:24,267 INFO L225 Difference]: With dead ends: 9483 [2023-12-15 17:37:24,268 INFO L226 Difference]: Without dead ends: 7542 [2023-12-15 17:37:24,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:37:24,271 INFO L413 NwaCegarLoop]: 4265 mSDtfsCounter, 4927 mSDsluCounter, 16828 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4940 SdHoareTripleChecker+Valid, 21093 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:24,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4940 Valid, 21093 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2612 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 17:37:24,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7542 states. [2023-12-15 17:37:24,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7542 to 5746. [2023-12-15 17:37:24,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5365 states have (on average 1.6857409133271202) internal successors, (9044), 5383 states have internal predecessors, (9044), 261 states have call successors, (261), 102 states have call predecessors, (261), 118 states have return successors, (358), 276 states have call predecessors, (358), 261 states have call successors, (358) [2023-12-15 17:37:24,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 9663 transitions. [2023-12-15 17:37:24,443 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 9663 transitions. Word has length 111 [2023-12-15 17:37:24,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:24,443 INFO L495 AbstractCegarLoop]: Abstraction has 5746 states and 9663 transitions. [2023-12-15 17:37:24,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:24,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 9663 transitions. [2023-12-15 17:37:24,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:24,446 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:24,446 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] [2023-12-15 17:37:24,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 17:37:24,447 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:24,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:24,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1197124107, now seen corresponding path program 1 times [2023-12-15 17:37:24,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:24,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978286578] [2023-12-15 17:37:24,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:24,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:24,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:24,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:24,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:24,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:24,576 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 17:37:24,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:24,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978286578] [2023-12-15 17:37:24,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978286578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:24,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:24,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:24,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405181719] [2023-12-15 17:37:24,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:24,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:24,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:24,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:24,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:24,578 INFO L87 Difference]: Start difference. First operand 5746 states and 9663 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:26,500 INFO L93 Difference]: Finished difference Result 15876 states and 25869 transitions. [2023-12-15 17:37:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:37:26,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:26,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:26,533 INFO L225 Difference]: With dead ends: 15876 [2023-12-15 17:37:26,534 INFO L226 Difference]: Without dead ends: 12264 [2023-12-15 17:37:26,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:37:26,549 INFO L413 NwaCegarLoop]: 4266 mSDtfsCounter, 5060 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5082 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:26,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5082 Valid, 21097 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2203 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:37:26,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12264 states. [2023-12-15 17:37:26,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12264 to 9127. [2023-12-15 17:37:26,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9127 states, 8410 states have (on average 1.641141498216409) internal successors, (13802), 8444 states have internal predecessors, (13802), 485 states have call successors, (485), 198 states have call predecessors, (485), 230 states have return successors, (760), 516 states have call predecessors, (760), 485 states have call successors, (760) [2023-12-15 17:37:26,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9127 states to 9127 states and 15047 transitions. [2023-12-15 17:37:26,925 INFO L78 Accepts]: Start accepts. Automaton has 9127 states and 15047 transitions. Word has length 111 [2023-12-15 17:37:26,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:26,925 INFO L495 AbstractCegarLoop]: Abstraction has 9127 states and 15047 transitions. [2023-12-15 17:37:26,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:26,925 INFO L276 IsEmpty]: Start isEmpty. Operand 9127 states and 15047 transitions. [2023-12-15 17:37:26,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:26,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:26,931 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] [2023-12-15 17:37:26,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 17:37:26,931 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:26,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash 679358711, now seen corresponding path program 1 times [2023-12-15 17:37:26,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:26,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735390679] [2023-12-15 17:37:26,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:26,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:27,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:27,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:27,063 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 17:37:27,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:27,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735390679] [2023-12-15 17:37:27,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735390679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:27,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:27,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:27,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974560816] [2023-12-15 17:37:27,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:27,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:27,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:27,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:27,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:27,065 INFO L87 Difference]: Start difference. First operand 9127 states and 15047 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:29,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:29,290 INFO L93 Difference]: Finished difference Result 28527 states and 46239 transitions. [2023-12-15 17:37:29,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:37:29,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:29,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:29,352 INFO L225 Difference]: With dead ends: 28527 [2023-12-15 17:37:29,352 INFO L226 Difference]: Without dead ends: 21534 [2023-12-15 17:37:29,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:37:29,381 INFO L413 NwaCegarLoop]: 4266 mSDtfsCounter, 5024 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5046 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:29,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5046 Valid, 21097 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 17:37:29,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21534 states. [2023-12-15 17:37:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21534 to 15888. [2023-12-15 17:37:30,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15888 states, 14515 states have (on average 1.608542886668963) internal successors, (23348), 14581 states have internal predecessors, (23348), 917 states have call successors, (917), 390 states have call predecessors, (917), 454 states have return successors, (1710), 980 states have call predecessors, (1710), 917 states have call successors, (1710) [2023-12-15 17:37:30,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15888 states to 15888 states and 25975 transitions. [2023-12-15 17:37:30,088 INFO L78 Accepts]: Start accepts. Automaton has 15888 states and 25975 transitions. Word has length 111 [2023-12-15 17:37:30,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:30,088 INFO L495 AbstractCegarLoop]: Abstraction has 15888 states and 25975 transitions. [2023-12-15 17:37:30,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:30,089 INFO L276 IsEmpty]: Start isEmpty. Operand 15888 states and 25975 transitions. [2023-12-15 17:37:30,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:30,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:30,097 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] [2023-12-15 17:37:30,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 17:37:30,097 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:30,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:30,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1199772235, now seen corresponding path program 1 times [2023-12-15 17:37:30,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:30,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772221889] [2023-12-15 17:37:30,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:30,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:30,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:30,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:30,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:30,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:30,222 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 17:37:30,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:30,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772221889] [2023-12-15 17:37:30,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772221889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:30,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:30,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:30,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52415552] [2023-12-15 17:37:30,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:30,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:30,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:30,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:30,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:30,224 INFO L87 Difference]: Start difference. First operand 15888 states and 25975 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:32,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:32,794 INFO L93 Difference]: Finished difference Result 53350 states and 86797 transitions. [2023-12-15 17:37:32,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:37:32,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:32,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:32,906 INFO L225 Difference]: With dead ends: 53350 [2023-12-15 17:37:32,906 INFO L226 Difference]: Without dead ends: 39596 [2023-12-15 17:37:32,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:37:32,956 INFO L413 NwaCegarLoop]: 4266 mSDtfsCounter, 4898 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4911 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:32,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4911 Valid, 21097 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 17:37:32,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39596 states. [2023-12-15 17:37:34,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39596 to 29409. [2023-12-15 17:37:34,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29409 states, 26756 states have (on average 1.5885035132306773) internal successors, (42502), 26886 states have internal predecessors, (42502), 1749 states have call successors, (1749), 774 states have call predecessors, (1749), 902 states have return successors, (4064), 1876 states have call predecessors, (4064), 1749 states have call successors, (4064) [2023-12-15 17:37:34,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29409 states to 29409 states and 48315 transitions. [2023-12-15 17:37:34,167 INFO L78 Accepts]: Start accepts. Automaton has 29409 states and 48315 transitions. Word has length 111 [2023-12-15 17:37:34,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:34,167 INFO L495 AbstractCegarLoop]: Abstraction has 29409 states and 48315 transitions. [2023-12-15 17:37:34,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:34,168 INFO L276 IsEmpty]: Start isEmpty. Operand 29409 states and 48315 transitions. [2023-12-15 17:37:34,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:34,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:34,187 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] [2023-12-15 17:37:34,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 17:37:34,187 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:34,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:34,188 INFO L85 PathProgramCache]: Analyzing trace with hash 125083959, now seen corresponding path program 1 times [2023-12-15 17:37:34,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:34,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601404555] [2023-12-15 17:37:34,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:34,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:34,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:34,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:34,325 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 17:37:34,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:34,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601404555] [2023-12-15 17:37:34,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601404555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:34,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:34,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:34,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144423606] [2023-12-15 17:37:34,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:34,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:34,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:34,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:34,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:34,327 INFO L87 Difference]: Start difference. First operand 29409 states and 48315 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:37,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:37,687 INFO L93 Difference]: Finished difference Result 102037 states and 168195 transitions. [2023-12-15 17:37:37,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:37:37,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:37,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:37,934 INFO L225 Difference]: With dead ends: 102037 [2023-12-15 17:37:37,934 INFO L226 Difference]: Without dead ends: 74762 [2023-12-15 17:37:38,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:37:38,023 INFO L413 NwaCegarLoop]: 4266 mSDtfsCounter, 4958 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4980 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:38,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4980 Valid, 21097 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 17:37:38,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74762 states. [2023-12-15 17:37:40,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74762 to 56450. [2023-12-15 17:37:40,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56450 states, 51301 states have (on average 1.57766905128555) internal successors, (80936), 51559 states have internal predecessors, (80936), 3349 states have call successors, (3349), 1542 states have call predecessors, (3349), 1798 states have return successors, (10166), 3604 states have call predecessors, (10166), 3349 states have call successors, (10166) [2023-12-15 17:37:40,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56450 states to 56450 states and 94451 transitions. [2023-12-15 17:37:40,793 INFO L78 Accepts]: Start accepts. Automaton has 56450 states and 94451 transitions. Word has length 111 [2023-12-15 17:37:40,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:40,793 INFO L495 AbstractCegarLoop]: Abstraction has 56450 states and 94451 transitions. [2023-12-15 17:37:40,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:40,794 INFO L276 IsEmpty]: Start isEmpty. Operand 56450 states and 94451 transitions. [2023-12-15 17:37:40,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:40,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:40,825 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] [2023-12-15 17:37:40,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 17:37:40,826 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:40,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:40,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1691841909, now seen corresponding path program 1 times [2023-12-15 17:37:40,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:40,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626083688] [2023-12-15 17:37:40,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:40,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:40,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:41,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:41,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:41,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:41,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:41,064 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 17:37:41,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:41,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626083688] [2023-12-15 17:37:41,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626083688] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:41,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:41,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:41,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221334611] [2023-12-15 17:37:41,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:41,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:41,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:41,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:41,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:41,065 INFO L87 Difference]: Start difference. First operand 56450 states and 94451 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:45,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:37:45,975 INFO L93 Difference]: Finished difference Result 194162 states and 328373 transitions. [2023-12-15 17:37:45,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:37:45,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-15 17:37:45,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:37:46,544 INFO L225 Difference]: With dead ends: 194162 [2023-12-15 17:37:46,544 INFO L226 Difference]: Without dead ends: 139846 [2023-12-15 17:37:46,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:37:46,748 INFO L413 NwaCegarLoop]: 4266 mSDtfsCounter, 4880 mSDsluCounter, 16831 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4902 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:46,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4902 Valid, 21097 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2130 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 17:37:46,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139846 states. [2023-12-15 17:37:51,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139846 to 110788. [2023-12-15 17:37:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110788 states, 100775 states have (on average 1.5735251798561152) internal successors, (158572), 101289 states have internal predecessors, (158572), 6421 states have call successors, (6421), 3078 states have call predecessors, (6421), 3590 states have return successors, (26616), 6932 states have call predecessors, (26616), 6421 states have call successors, (26616) [2023-12-15 17:37:52,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110788 states to 110788 states and 191609 transitions. [2023-12-15 17:37:52,026 INFO L78 Accepts]: Start accepts. Automaton has 110788 states and 191609 transitions. Word has length 111 [2023-12-15 17:37:52,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:37:52,027 INFO L495 AbstractCegarLoop]: Abstraction has 110788 states and 191609 transitions. [2023-12-15 17:37:52,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:37:52,027 INFO L276 IsEmpty]: Start isEmpty. Operand 110788 states and 191609 transitions. [2023-12-15 17:37:52,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 17:37:52,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:37:52,095 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] [2023-12-15 17:37:52,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 17:37:52,095 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:37:52,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:37:52,096 INFO L85 PathProgramCache]: Analyzing trace with hash 549339443, now seen corresponding path program 1 times [2023-12-15 17:37:52,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:37:52,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627071415] [2023-12-15 17:37:52,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:37:52,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:37:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:37:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 17:37:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:52,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 17:37:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:52,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:37:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:52,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 17:37:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:37:52,409 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 17:37:52,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:37:52,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627071415] [2023-12-15 17:37:52,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627071415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:37:52,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:37:52,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:37:52,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566323574] [2023-12-15 17:37:52,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:37:52,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:37:52,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:37:52,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:37:52,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:37:52,412 INFO L87 Difference]: Start difference. First operand 110788 states and 191609 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-15 17:37:54,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:37:54,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-15 17:37:54,426 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 778 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:37:54,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1540 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 17:37:54,428 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:37:54,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 17:37:54,429 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (110788states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (53202 states constructed, input type IntersectNwa). [2023-12-15 17:37:54,430 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:37:54,433 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 17:37:54,434 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:37:54,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:37:54 BoogieIcfgContainer [2023-12-15 17:37:54,436 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:37:54,436 INFO L158 Benchmark]: Toolchain (without parser) took 56494.84ms. Allocated memory was 281.0MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 240.5MB in the beginning and 5.1GB in the end (delta: -4.8GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-15 17:37:54,436 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 233.8MB. Free memory is still 185.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:37:54,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2345.59ms. Allocated memory was 281.0MB in the beginning and 450.9MB in the end (delta: 169.9MB). Free memory was 239.9MB in the beginning and 280.3MB in the end (delta: -40.4MB). Peak memory consumption was 133.2MB. Max. memory is 8.0GB. [2023-12-15 17:37:54,437 INFO L158 Benchmark]: Boogie Procedure Inliner took 484.69ms. Allocated memory is still 450.9MB. Free memory was 280.3MB in the beginning and 302.8MB in the end (delta: -22.5MB). Peak memory consumption was 98.0MB. Max. memory is 8.0GB. [2023-12-15 17:37:54,437 INFO L158 Benchmark]: Boogie Preprocessor took 481.70ms. Allocated memory was 450.9MB in the beginning and 931.1MB in the end (delta: 480.2MB). Free memory was 302.8MB in the beginning and 762.6MB in the end (delta: -459.8MB). Peak memory consumption was 90.2MB. Max. memory is 8.0GB. [2023-12-15 17:37:54,437 INFO L158 Benchmark]: RCFGBuilder took 5679.07ms. Allocated memory was 931.1MB in the beginning and 1.6GB in the end (delta: 637.5MB). Free memory was 762.6MB in the beginning and 1.2GB in the end (delta: -428.1MB). Peak memory consumption was 335.3MB. Max. memory is 8.0GB. [2023-12-15 17:37:54,437 INFO L158 Benchmark]: TraceAbstraction took 47497.07ms. Allocated memory was 1.6GB in the beginning and 6.2GB in the end (delta: 4.7GB). Free memory was 1.2GB in the beginning and 5.1GB in the end (delta: -3.9GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-15 17:37:54,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 233.8MB. Free memory is still 185.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2345.59ms. Allocated memory was 281.0MB in the beginning and 450.9MB in the end (delta: 169.9MB). Free memory was 239.9MB in the beginning and 280.3MB in the end (delta: -40.4MB). Peak memory consumption was 133.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 484.69ms. Allocated memory is still 450.9MB. Free memory was 280.3MB in the beginning and 302.8MB in the end (delta: -22.5MB). Peak memory consumption was 98.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 481.70ms. Allocated memory was 450.9MB in the beginning and 931.1MB in the end (delta: 480.2MB). Free memory was 302.8MB in the beginning and 762.6MB in the end (delta: -459.8MB). Peak memory consumption was 90.2MB. Max. memory is 8.0GB. * RCFGBuilder took 5679.07ms. Allocated memory was 931.1MB in the beginning and 1.6GB in the end (delta: 637.5MB). Free memory was 762.6MB in the beginning and 1.2GB in the end (delta: -428.1MB). Peak memory consumption was 335.3MB. Max. memory is 8.0GB. * TraceAbstraction took 47497.07ms. Allocated memory was 1.6GB in the beginning and 6.2GB in the end (delta: 4.7GB). Free memory was 1.2GB in the beginning and 5.1GB in the end (delta: -3.9GB). Peak memory consumption was 1.2GB. 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 (110788states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (53202 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 11088]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11088). Cancelled while NwaCegarLoop was constructing difference of abstraction (110788states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (53202 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2356 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 47.5s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 33.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69907 SdHoareTripleChecker+Valid, 17.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69645 mSDsluCounter, 301977 SdHoareTripleChecker+Invalid, 15.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 238460 mSDsCounter, 885 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28359 IncrementalHoareTripleChecker+Invalid, 29244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 885 mSolverCounterUnsat, 63517 mSDtfsCounter, 28359 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 413 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110788occurred in iteration=15, InterpolantAutomatonStates: 177, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 71712 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1776 NumberOfCodeBlocks, 1776 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1760 ConstructedInterpolants, 0 QuantifiedInterpolants, 5101 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