./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.07.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/token_ring.07.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a6baa92d18991a792383fc99c5c300f37f700ba00714b15a3dbe7d2191a67ca9 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:29:24,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:29:24,196 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:29:24,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:29:24,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:29:24,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:29:24,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:29:24,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:29:24,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:29:24,242 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:29:24,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:29:24,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:29:24,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:29:24,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:29:24,244 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:29:24,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:29:24,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:29:24,245 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:29:24,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:29:24,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:29:24,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:29:24,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:29:24,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:29:24,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:29:24,250 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:29:24,250 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:29:24,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:29:24,251 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:29:24,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:29:24,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:29:24,251 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:29:24,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:29:24,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:29:24,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:29:24,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:29:24,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:29:24,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:29:24,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:29:24,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:29:24,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:29:24,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:29:24,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:29:24,259 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6baa92d18991a792383fc99c5c300f37f700ba00714b15a3dbe7d2191a67ca9 [2024-11-08 15:29:24,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:29:24,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:29:24,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:29:24,526 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:29:24,527 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:29:24,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.07.cil-1.c [2024-11-08 15:29:26,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:29:26,225 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:29:26,226 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.07.cil-1.c [2024-11-08 15:29:26,240 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69087960b/95a5670367ad4c088d99a8937931cea1/FLAG8dd3b2443 [2024-11-08 15:29:26,594 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69087960b/95a5670367ad4c088d99a8937931cea1 [2024-11-08 15:29:26,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:29:26,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:29:26,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:29:26,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:29:26,614 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:29:26,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:29:26" (1/1) ... [2024-11-08 15:29:26,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f65405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:26, skipping insertion in model container [2024-11-08 15:29:26,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:29:26" (1/1) ... [2024-11-08 15:29:26,662 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:29:26,837 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.07.cil-1.c[671,684] [2024-11-08 15:29:26,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:29:26,939 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:29:26,950 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.07.cil-1.c[671,684] [2024-11-08 15:29:27,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:29:27,040 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:29:27,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27 WrapperNode [2024-11-08 15:29:27,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:29:27,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:29:27,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:29:27,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:29:27,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,094 INFO L138 Inliner]: procedures = 42, calls = 52, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 579 [2024-11-08 15:29:27,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:29:27,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:29:27,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:29:27,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:29:27,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,133 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]. [2024-11-08 15:29:27,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,142 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:29:27,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:29:27,164 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:29:27,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:29:27,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (1/1) ... [2024-11-08 15:29:27,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:29:27,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:29:27,209 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) [2024-11-08 15:29:27,216 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 [2024-11-08 15:29:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:29:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-08 15:29:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-08 15:29:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-08 15:29:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-08 15:29:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-08 15:29:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-08 15:29:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-08 15:29:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-08 15:29:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-08 15:29:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-08 15:29:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:29:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-08 15:29:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-08 15:29:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:29:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:29:27,380 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:29:27,383 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:29:28,151 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-08 15:29:28,151 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:29:28,175 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:29:28,177 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-08 15:29:28,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:29:28 BoogieIcfgContainer [2024-11-08 15:29:28,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:29:28,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:29:28,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:29:28,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:29:28,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:29:26" (1/3) ... [2024-11-08 15:29:28,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17eb4dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:29:28, skipping insertion in model container [2024-11-08 15:29:28,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:29:27" (2/3) ... [2024-11-08 15:29:28,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17eb4dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:29:28, skipping insertion in model container [2024-11-08 15:29:28,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:29:28" (3/3) ... [2024-11-08 15:29:28,187 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.07.cil-1.c [2024-11-08 15:29:28,200 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:29:28,200 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:29:28,267 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:29:28,275 INFO L333 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, 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;@133c2b25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:29:28,276 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:29:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 236 states have (on average 1.61864406779661) internal successors, (382), 238 states have internal predecessors, (382), 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) [2024-11-08 15:29:28,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:29:28,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:29:28,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:29:28,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:29:28,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:29:28,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2059468019, now seen corresponding path program 1 times [2024-11-08 15:29:28,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:29:28,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892443023] [2024-11-08 15:29:28,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:29:28,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:29:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:28,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:29:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:28,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:29:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:28,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:29:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:28,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:29:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:28,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:29:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:29:28,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:29:28,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892443023] [2024-11-08 15:29:28,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892443023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:29:28,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:29:28,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:29:28,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647057948] [2024-11-08 15:29:28,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:29:28,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:29:28,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:29:28,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:29:28,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:29:28,901 INFO L87 Difference]: Start difference. First operand has 265 states, 236 states have (on average 1.61864406779661) internal successors, (382), 238 states have internal predecessors, (382), 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 22.4) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-08 15:29:30,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:29:30,284 INFO L93 Difference]: Finished difference Result 608 states and 985 transitions. [2024-11-08 15:29:30,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:29:30,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 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 122 [2024-11-08 15:29:30,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:29:30,305 INFO L225 Difference]: With dead ends: 608 [2024-11-08 15:29:30,305 INFO L226 Difference]: Without dead ends: 347 [2024-11-08 15:29:30,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:29:30,316 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 669 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:29:30,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 528 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:29:30,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-08 15:29:30,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 260. [2024-11-08 15:29:30,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 232 states have (on average 1.5301724137931034) internal successors, (355), 233 states have internal predecessors, (355), 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) [2024-11-08 15:29:30,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 397 transitions. [2024-11-08 15:29:30,401 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 397 transitions. Word has length 122 [2024-11-08 15:29:30,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:29:30,402 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 397 transitions. [2024-11-08 15:29:30,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-08 15:29:30,402 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 397 transitions. [2024-11-08 15:29:30,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:29:30,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:29:30,406 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:29:30,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:29:30,407 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:29:30,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:29:30,408 INFO L85 PathProgramCache]: Analyzing trace with hash 508354315, now seen corresponding path program 1 times [2024-11-08 15:29:30,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:29:30,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999101801] [2024-11-08 15:29:30,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:29:30,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:29:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:30,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:29:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:30,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:29:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:30,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:29:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:30,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:29:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:30,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:29:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:30,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:29:30,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:29:30,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999101801] [2024-11-08 15:29:30,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999101801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:29:30,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:29:30,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:29:30,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226234611] [2024-11-08 15:29:30,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:29:30,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:29:30,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:29:30,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:29:30,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:29:30,741 INFO L87 Difference]: Start difference. First operand 260 states and 397 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-08 15:29:32,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:29:32,559 INFO L93 Difference]: Finished difference Result 932 states and 1460 transitions. [2024-11-08 15:29:32,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 15:29:32,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 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 122 [2024-11-08 15:29:32,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:29:32,566 INFO L225 Difference]: With dead ends: 932 [2024-11-08 15:29:32,566 INFO L226 Difference]: Without dead ends: 687 [2024-11-08 15:29:32,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:29:32,569 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 1000 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:29:32,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 882 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 15:29:32,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-08 15:29:32,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 514. [2024-11-08 15:29:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 463 states have (on average 1.5421166306695464) internal successors, (714), 465 states have internal predecessors, (714), 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) [2024-11-08 15:29:32,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 791 transitions. [2024-11-08 15:29:32,635 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 791 transitions. Word has length 122 [2024-11-08 15:29:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:29:32,636 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 791 transitions. [2024-11-08 15:29:32,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-08 15:29:32,637 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 791 transitions. [2024-11-08 15:29:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:29:32,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:29:32,641 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:29:32,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:29:32,641 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:29:32,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:29:32,642 INFO L85 PathProgramCache]: Analyzing trace with hash -217209713, now seen corresponding path program 1 times [2024-11-08 15:29:32,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:29:32,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034332404] [2024-11-08 15:29:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:29:32,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:29:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:32,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:29:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:32,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:29:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:32,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:29:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:32,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:29:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:32,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:29:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:29:32,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:29:32,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034332404] [2024-11-08 15:29:32,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034332404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:29:32,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:29:32,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:29:32,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527464802] [2024-11-08 15:29:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:29:32,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:29:32,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:29:32,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:29:32,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:29:32,966 INFO L87 Difference]: Start difference. First operand 514 states and 791 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:35,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:29:35,228 INFO L93 Difference]: Finished difference Result 1538 states and 2411 transitions. [2024-11-08 15:29:35,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:29:35,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-08 15:29:35,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:29:35,237 INFO L225 Difference]: With dead ends: 1538 [2024-11-08 15:29:35,237 INFO L226 Difference]: Without dead ends: 1039 [2024-11-08 15:29:35,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:29:35,241 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 1021 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 15:29:35,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 1691 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2267 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 15:29:35,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-08 15:29:35,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 752. [2024-11-08 15:29:35,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 678 states have (on average 1.5353982300884956) internal successors, (1041), 681 states have internal predecessors, (1041), 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) [2024-11-08 15:29:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1152 transitions. [2024-11-08 15:29:35,299 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1152 transitions. Word has length 122 [2024-11-08 15:29:35,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:29:35,300 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1152 transitions. [2024-11-08 15:29:35,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1152 transitions. [2024-11-08 15:29:35,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:29:35,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:29:35,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:29:35,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:29:35,305 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:29:35,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:29:35,306 INFO L85 PathProgramCache]: Analyzing trace with hash 2044363537, now seen corresponding path program 1 times [2024-11-08 15:29:35,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:29:35,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407873682] [2024-11-08 15:29:35,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:29:35,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:29:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:35,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:29:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:35,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:29:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:35,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:29:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:35,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:29:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:35,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:29:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:35,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:29:35,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:29:35,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407873682] [2024-11-08 15:29:35,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407873682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:29:35,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:29:35,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:29:35,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434688878] [2024-11-08 15:29:35,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:29:35,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:29:35,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:29:35,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:29:35,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:29:35,538 INFO L87 Difference]: Start difference. First operand 752 states and 1152 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:37,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:29:37,793 INFO L93 Difference]: Finished difference Result 2429 states and 3796 transitions. [2024-11-08 15:29:37,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:29:37,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-08 15:29:37,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:29:37,807 INFO L225 Difference]: With dead ends: 2429 [2024-11-08 15:29:37,807 INFO L226 Difference]: Without dead ends: 1692 [2024-11-08 15:29:37,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:29:37,815 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1016 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 2296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 15:29:37,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1689 Invalid, 2296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 15:29:37,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2024-11-08 15:29:37,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1231. [2024-11-08 15:29:37,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 1111 states have (on average 1.5301530153015301) internal successors, (1700), 1116 states have internal predecessors, (1700), 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) [2024-11-08 15:29:37,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1883 transitions. [2024-11-08 15:29:37,903 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1883 transitions. Word has length 122 [2024-11-08 15:29:37,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:29:37,904 INFO L471 AbstractCegarLoop]: Abstraction has 1231 states and 1883 transitions. [2024-11-08 15:29:37,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:37,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1883 transitions. [2024-11-08 15:29:37,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:29:37,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:29:37,907 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:29:37,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:29:37,908 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:29:37,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:29:37,908 INFO L85 PathProgramCache]: Analyzing trace with hash 177654863, now seen corresponding path program 1 times [2024-11-08 15:29:37,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:29:37,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595877555] [2024-11-08 15:29:37,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:29:37,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:29:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:37,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:29:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:38,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:29:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:38,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:29:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:38,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:29:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:38,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:29:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:29:38,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:29:38,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595877555] [2024-11-08 15:29:38,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595877555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:29:38,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:29:38,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:29:38,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399110018] [2024-11-08 15:29:38,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:29:38,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:29:38,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:29:38,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:29:38,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:29:38,113 INFO L87 Difference]: Start difference. First operand 1231 states and 1883 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:40,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:29:40,091 INFO L93 Difference]: Finished difference Result 4154 states and 6467 transitions. [2024-11-08 15:29:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:29:40,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-08 15:29:40,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:29:40,106 INFO L225 Difference]: With dead ends: 4154 [2024-11-08 15:29:40,106 INFO L226 Difference]: Without dead ends: 2938 [2024-11-08 15:29:40,111 INFO L431 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 [2024-11-08 15:29:40,113 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1015 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:29:40,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 1689 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 15:29:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2024-11-08 15:29:40,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2192. [2024-11-08 15:29:40,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2192 states, 1980 states have (on average 1.5262626262626262) internal successors, (3022), 1989 states have internal predecessors, (3022), 149 states have call successors, (149), 54 states have call predecessors, (149), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2024-11-08 15:29:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 3355 transitions. [2024-11-08 15:29:40,271 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 3355 transitions. Word has length 122 [2024-11-08 15:29:40,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:29:40,272 INFO L471 AbstractCegarLoop]: Abstraction has 2192 states and 3355 transitions. [2024-11-08 15:29:40,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 3355 transitions. [2024-11-08 15:29:40,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:29:40,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:29:40,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:29:40,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:29:40,276 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:29:40,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:29:40,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1129487535, now seen corresponding path program 1 times [2024-11-08 15:29:40,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:29:40,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478608146] [2024-11-08 15:29:40,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:29:40,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:29:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:40,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:29:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:40,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:29:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:40,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:29:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:40,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:29:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:40,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:29:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:40,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:29:40,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:29:40,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478608146] [2024-11-08 15:29:40,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478608146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:29:40,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:29:40,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:29:40,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084357888] [2024-11-08 15:29:40,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:29:40,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:29:40,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:29:40,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:29:40,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:29:40,471 INFO L87 Difference]: Start difference. First operand 2192 states and 3355 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:42,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:29:42,433 INFO L93 Difference]: Finished difference Result 7605 states and 11829 transitions. [2024-11-08 15:29:42,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:29:42,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-08 15:29:42,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:29:42,463 INFO L225 Difference]: With dead ends: 7605 [2024-11-08 15:29:42,463 INFO L226 Difference]: Without dead ends: 5428 [2024-11-08 15:29:42,473 INFO L431 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 [2024-11-08 15:29:42,477 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1014 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:29:42,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1689 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 15:29:42,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5428 states. [2024-11-08 15:29:42,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5428 to 4121. [2024-11-08 15:29:42,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 3725 states have (on average 1.523758389261745) internal successors, (5676), 3742 states have internal predecessors, (5676), 277 states have call successors, (277), 102 states have call predecessors, (277), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2024-11-08 15:29:42,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 6327 transitions. [2024-11-08 15:29:42,767 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 6327 transitions. Word has length 122 [2024-11-08 15:29:42,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:29:42,767 INFO L471 AbstractCegarLoop]: Abstraction has 4121 states and 6327 transitions. [2024-11-08 15:29:42,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:42,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 6327 transitions. [2024-11-08 15:29:42,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:29:42,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:29:42,771 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:29:42,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:29:42,772 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:29:42,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:29:42,772 INFO L85 PathProgramCache]: Analyzing trace with hash 768009231, now seen corresponding path program 1 times [2024-11-08 15:29:42,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:29:42,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412411164] [2024-11-08 15:29:42,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:29:42,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:29:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:42,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:29:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:42,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:29:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:42,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:29:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:42,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:29:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:42,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:29:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:29:42,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:29:42,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412411164] [2024-11-08 15:29:42,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412411164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:29:42,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:29:42,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:29:42,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21559941] [2024-11-08 15:29:42,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:29:42,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:29:42,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:29:42,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:29:42,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:29:42,972 INFO L87 Difference]: Start difference. First operand 4121 states and 6327 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:45,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:29:45,103 INFO L93 Difference]: Finished difference Result 14508 states and 22615 transitions. [2024-11-08 15:29:45,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:29:45,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-08 15:29:45,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:29:45,160 INFO L225 Difference]: With dead ends: 14508 [2024-11-08 15:29:45,161 INFO L226 Difference]: Without dead ends: 10402 [2024-11-08 15:29:45,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:29:45,181 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1072 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:29:45,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 1068 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:29:45,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10402 states. [2024-11-08 15:29:45,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10402 to 7994. [2024-11-08 15:29:45,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7994 states, 7230 states have (on average 1.522268326417704) internal successors, (11006), 7263 states have internal predecessors, (11006), 533 states have call successors, (533), 198 states have call predecessors, (533), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2024-11-08 15:29:45,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7994 states to 7994 states and 12347 transitions. [2024-11-08 15:29:45,740 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 12347 transitions. Word has length 122 [2024-11-08 15:29:45,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:29:45,742 INFO L471 AbstractCegarLoop]: Abstraction has 7994 states and 12347 transitions. [2024-11-08 15:29:45,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:45,744 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 12347 transitions. [2024-11-08 15:29:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:29:45,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:29:45,753 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:29:45,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:29:45,753 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:29:45,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:29:45,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1799050129, now seen corresponding path program 1 times [2024-11-08 15:29:45,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:29:45,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412610566] [2024-11-08 15:29:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:29:45,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:29:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:45,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:29:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:45,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:29:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:45,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:29:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:45,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:29:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:45,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:29:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:29:45,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:29:45,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412610566] [2024-11-08 15:29:45,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412610566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:29:45,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:29:45,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:29:45,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747308357] [2024-11-08 15:29:45,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:29:45,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:29:45,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:29:45,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:29:45,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:29:45,976 INFO L87 Difference]: Start difference. First operand 7994 states and 12347 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:48,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:29:48,778 INFO L93 Difference]: Finished difference Result 28315 states and 44381 transitions. [2024-11-08 15:29:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:29:48,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-08 15:29:48,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:29:48,875 INFO L225 Difference]: With dead ends: 28315 [2024-11-08 15:29:48,875 INFO L226 Difference]: Without dead ends: 20336 [2024-11-08 15:29:48,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:29:48,913 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1012 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 2244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:29:48,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1689 Invalid, 2244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 15:29:48,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20336 states. [2024-11-08 15:29:49,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20336 to 15771. [2024-11-08 15:29:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15771 states, 14271 states have (on average 1.5214070492607386) internal successors, (21712), 14336 states have internal predecessors, (21712), 1045 states have call successors, (1045), 390 states have call predecessors, (1045), 454 states have return successors, (1838), 1108 states have call predecessors, (1838), 1045 states have call successors, (1838) [2024-11-08 15:29:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15771 states to 15771 states and 24595 transitions. [2024-11-08 15:29:50,102 INFO L78 Accepts]: Start accepts. Automaton has 15771 states and 24595 transitions. Word has length 122 [2024-11-08 15:29:50,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:29:50,103 INFO L471 AbstractCegarLoop]: Abstraction has 15771 states and 24595 transitions. [2024-11-08 15:29:50,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:50,104 INFO L276 IsEmpty]: Start isEmpty. Operand 15771 states and 24595 transitions. [2024-11-08 15:29:50,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:29:50,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:29:50,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:29:50,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:29:50,122 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:29:50,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:29:50,123 INFO L85 PathProgramCache]: Analyzing trace with hash -107353137, now seen corresponding path program 1 times [2024-11-08 15:29:50,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:29:50,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341301647] [2024-11-08 15:29:50,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:29:50,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:29:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:50,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:29:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:50,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:29:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:50,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:29:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:50,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:29:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:50,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:29:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:29:50,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:29:50,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341301647] [2024-11-08 15:29:50,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341301647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:29:50,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:29:50,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:29:50,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785539692] [2024-11-08 15:29:50,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:29:50,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:29:50,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:29:50,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:29:50,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:29:50,351 INFO L87 Difference]: Start difference. First operand 15771 states and 24595 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:53,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:29:53,960 INFO L93 Difference]: Finished difference Result 62778 states and 98885 transitions. [2024-11-08 15:29:53,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:29:53,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-08 15:29:53,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:29:54,165 INFO L225 Difference]: With dead ends: 62778 [2024-11-08 15:29:54,166 INFO L226 Difference]: Without dead ends: 47022 [2024-11-08 15:29:54,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:29:54,232 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1308 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:29:54,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 1679 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 15:29:54,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47022 states. [2024-11-08 15:29:56,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47022 to 31196. [2024-11-08 15:29:56,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31196 states, 28288 states have (on average 1.5232607466063348) internal successors, (43090), 28417 states have internal predecessors, (43090), 2005 states have call successors, (2005), 774 states have call predecessors, (2005), 902 states have return successors, (4320), 2132 states have call predecessors, (4320), 2005 states have call successors, (4320) [2024-11-08 15:29:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31196 states to 31196 states and 49415 transitions. [2024-11-08 15:29:56,841 INFO L78 Accepts]: Start accepts. Automaton has 31196 states and 49415 transitions. Word has length 122 [2024-11-08 15:29:56,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:29:56,842 INFO L471 AbstractCegarLoop]: Abstraction has 31196 states and 49415 transitions. [2024-11-08 15:29:56,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:29:56,843 INFO L276 IsEmpty]: Start isEmpty. Operand 31196 states and 49415 transitions. [2024-11-08 15:29:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:29:56,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:29:56,873 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:29:56,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:29:56,874 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:29:56,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:29:56,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1493717969, now seen corresponding path program 1 times [2024-11-08 15:29:56,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:29:56,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628822414] [2024-11-08 15:29:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:29:56,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:29:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:57,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:29:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:57,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:29:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:57,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:29:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:57,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:29:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:57,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:29:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:29:57,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:29:57,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:29:57,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628822414] [2024-11-08 15:29:57,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628822414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:29:57,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:29:57,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:29:57,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216862720] [2024-11-08 15:29:57,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:29:57,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:29:57,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:29:57,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:29:57,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:29:57,406 INFO L87 Difference]: Start difference. First operand 31196 states and 49415 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:30:03,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:30:03,022 INFO L93 Difference]: Finished difference Result 120951 states and 193479 transitions. [2024-11-08 15:30:03,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:30:03,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-08 15:30:03,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:30:03,418 INFO L225 Difference]: With dead ends: 120951 [2024-11-08 15:30:03,418 INFO L226 Difference]: Without dead ends: 89770 [2024-11-08 15:30:03,544 INFO L431 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 [2024-11-08 15:30:03,545 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1225 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:30:03,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 1679 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 15:30:03,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89770 states. [2024-11-08 15:30:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89770 to 62110. [2024-11-08 15:30:07,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62110 states, 56450 states have (on average 1.526412754650133) internal successors, (86166), 56707 states have internal predecessors, (86166), 3861 states have call successors, (3861), 1542 states have call predecessors, (3861), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2024-11-08 15:30:08,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62110 states to 62110 states and 100705 transitions. [2024-11-08 15:30:08,567 INFO L78 Accepts]: Start accepts. Automaton has 62110 states and 100705 transitions. Word has length 122 [2024-11-08 15:30:08,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:30:08,567 INFO L471 AbstractCegarLoop]: Abstraction has 62110 states and 100705 transitions. [2024-11-08 15:30:08,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:30:08,568 INFO L276 IsEmpty]: Start isEmpty. Operand 62110 states and 100705 transitions. [2024-11-08 15:30:08,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:30:08,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:30:08,622 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:30:08,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 15:30:08,622 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:30:08,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:30:08,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1449864109, now seen corresponding path program 1 times [2024-11-08 15:30:08,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:30:08,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448321855] [2024-11-08 15:30:08,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:30:08,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:30:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:08,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:30:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:08,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:30:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:08,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:30:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:08,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:30:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:08,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:30:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:08,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:30:08,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:30:08,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448321855] [2024-11-08 15:30:08,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448321855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:30:08,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:30:08,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:30:08,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627063049] [2024-11-08 15:30:08,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:30:08,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:30:08,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:30:08,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:30:08,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:30:08,851 INFO L87 Difference]: Start difference. First operand 62110 states and 100705 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:30:14,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:30:14,137 INFO L93 Difference]: Finished difference Result 141598 states and 235538 transitions. [2024-11-08 15:30:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:30:14,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-08 15:30:14,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:30:14,584 INFO L225 Difference]: With dead ends: 141598 [2024-11-08 15:30:14,585 INFO L226 Difference]: Without dead ends: 79503 [2024-11-08 15:30:14,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:30:14,792 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 742 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:30:14,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 847 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:30:14,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79503 states. [2024-11-08 15:30:19,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79503 to 62110. [2024-11-08 15:30:19,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62110 states, 56450 states have (on average 1.5218600531443756) internal successors, (85909), 56707 states have internal predecessors, (85909), 3861 states have call successors, (3861), 1542 states have call predecessors, (3861), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2024-11-08 15:30:19,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62110 states to 62110 states and 100448 transitions. [2024-11-08 15:30:19,526 INFO L78 Accepts]: Start accepts. Automaton has 62110 states and 100448 transitions. Word has length 122 [2024-11-08 15:30:19,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:30:19,526 INFO L471 AbstractCegarLoop]: Abstraction has 62110 states and 100448 transitions. [2024-11-08 15:30:19,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-08 15:30:19,527 INFO L276 IsEmpty]: Start isEmpty. Operand 62110 states and 100448 transitions. [2024-11-08 15:30:19,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:30:19,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:30:19,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:30:19,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:30:19,585 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:30:19,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:30:19,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1226128273, now seen corresponding path program 1 times [2024-11-08 15:30:19,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:30:19,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215808257] [2024-11-08 15:30:19,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:30:19,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:30:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:19,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:30:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:19,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:30:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:19,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:30:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:19,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:30:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:19,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:30:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:30:19,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:30:19,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:30:19,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215808257] [2024-11-08 15:30:19,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215808257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:30:19,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:30:19,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:30:19,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902932224] [2024-11-08 15:30:19,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:30:19,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:30:19,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:30:19,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:30:19,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:30:19,753 INFO L87 Difference]: Start difference. First operand 62110 states and 100448 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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)