./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.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 19aa3a10df20aa66b298603653689263cc3fd1e3f00b1be832baa1f64aefda99 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:11:00,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:11:00,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:11:00,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:11:00,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:11:00,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:11:00,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:11:00,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:11:00,528 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:11:00,530 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:11:00,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:11:00,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:11:00,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:11:00,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:11:00,536 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:11:00,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:11:00,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:11:00,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:11:00,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:11:00,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:11:00,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:11:00,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:11:00,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:11:00,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:11:00,539 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:11:00,539 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:11:00,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:11:00,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:11:00,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:11:00,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:11:00,541 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:11:00,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:11:00,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:11:00,542 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:11:00,543 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:11:00,543 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:11:00,543 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:11:00,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:11:00,544 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:11:00,544 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:11:00,544 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:11:00,544 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:11:00,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19aa3a10df20aa66b298603653689263cc3fd1e3f00b1be832baa1f64aefda99 [2024-10-24 02:11:00,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:11:00,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:11:00,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:11:00,830 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:11:00,830 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:11:00,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c [2024-10-24 02:11:02,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:11:02,976 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:11:02,977 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c [2024-10-24 02:11:03,023 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8452937/f01d19fcdcd749c1ac94366a3d599654/FLAGaecc7b7fd [2024-10-24 02:11:03,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8452937/f01d19fcdcd749c1ac94366a3d599654 [2024-10-24 02:11:03,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:11:03,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:11:03,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:11:03,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:11:03,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:11:03,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:11:03" (1/1) ... [2024-10-24 02:11:03,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e610008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:03, skipping insertion in model container [2024-10-24 02:11:03,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:11:03" (1/1) ... [2024-10-24 02:11:03,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:11:04,906 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[377069,377082] [2024-10-24 02:11:04,937 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[383339,383352] [2024-10-24 02:11:05,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:11:05,208 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:11:05,981 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[377069,377082] [2024-10-24 02:11:05,996 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[383339,383352] [2024-10-24 02:11:06,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:11:06,090 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:11:06,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06 WrapperNode [2024-10-24 02:11:06,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:11:06,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:11:06,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:11:06,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:11:06,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:06,187 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:06,546 INFO L138 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13293 [2024-10-24 02:11:06,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:11:06,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:11:06,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:11:06,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:11:06,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:06,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:06,616 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:06,793 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]. [2024-10-24 02:11:06,793 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:06,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:06,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:07,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:07,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:07,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:07,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:11:07,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:11:07,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:11:07,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:11:07,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2024-10-24 02:11:07,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:11:07,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:11:07,167 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) [2024-10-24 02:11:07,173 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 [2024-10-24 02:11:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:11:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:11:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:11:07,213 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:11:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:11:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:11:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:11:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:11:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:11:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:11:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:11:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:11:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:11:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:11:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:11:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:11:07,378 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:11:07,381 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:11:15,233 INFO L? ?]: Removed 1761 outVars from TransFormulas that were not future-live. [2024-10-24 02:11:15,234 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:11:15,346 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:11:15,347 INFO L314 CfgBuilder]: Removed 17 assume(true) statements. [2024-10-24 02:11:15,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:11:15 BoogieIcfgContainer [2024-10-24 02:11:15,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:11:15,349 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:11:15,349 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:11:15,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:11:15,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:11:03" (1/3) ... [2024-10-24 02:11:15,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4145d2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:11:15, skipping insertion in model container [2024-10-24 02:11:15,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (2/3) ... [2024-10-24 02:11:15,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4145d2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:11:15, skipping insertion in model container [2024-10-24 02:11:15,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:11:15" (3/3) ... [2024-10-24 02:11:15,357 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.13.cil-2.c [2024-10-24 02:11:15,371 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:11:15,371 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:11:15,504 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:11:15,511 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;@552f19fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:11:15,512 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:11:15,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 02:11:15,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:15,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:15,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:15,546 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:15,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:15,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1072822453, now seen corresponding path program 1 times [2024-10-24 02:11:15,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:15,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244434356] [2024-10-24 02:11:15,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:15,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:15,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:16,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:16,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:16,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:16,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:16,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:16,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244434356] [2024-10-24 02:11:16,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244434356] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:16,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:16,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:11:16,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205280189] [2024-10-24 02:11:16,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:16,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:11:16,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:16,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:11:16,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:11:16,291 INFO L87 Difference]: Start difference. First operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:18,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:18,595 INFO L93 Difference]: Finished difference Result 5122 states and 9562 transitions. [2024-10-24 02:11:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:11:18,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:18,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:18,636 INFO L225 Difference]: With dead ends: 5122 [2024-10-24 02:11:18,637 INFO L226 Difference]: Without dead ends: 2630 [2024-10-24 02:11:18,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 02:11:18,655 INFO L432 NwaCegarLoop]: 4276 mSDtfsCounter, 1048 mSDsluCounter, 12226 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 16502 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:18,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 16502 Invalid, 1206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 02:11:18,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2024-10-24 02:11:18,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2490. [2024-10-24 02:11:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 2455 states have (on average 1.8354378818737271) internal successors, (4506), 2457 states have internal predecessors, (4506), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 02:11:18,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 4560 transitions. [2024-10-24 02:11:18,837 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 4560 transitions. Word has length 171 [2024-10-24 02:11:18,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:18,838 INFO L471 AbstractCegarLoop]: Abstraction has 2490 states and 4560 transitions. [2024-10-24 02:11:18,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:18,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 4560 transitions. [2024-10-24 02:11:18,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:18,843 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:18,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:18,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:11:18,844 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:18,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:18,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1643094259, now seen corresponding path program 1 times [2024-10-24 02:11:18,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:18,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838024792] [2024-10-24 02:11:18,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:18,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:18,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:19,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:19,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838024792] [2024-10-24 02:11:19,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838024792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:19,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:19,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:11:19,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009277566] [2024-10-24 02:11:19,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:19,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:11:19,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:19,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:11:19,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:11:19,150 INFO L87 Difference]: Start difference. First operand 2490 states and 4560 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:21,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:21,312 INFO L93 Difference]: Finished difference Result 2984 states and 5386 transitions. [2024-10-24 02:11:21,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:11:21,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:21,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:21,324 INFO L225 Difference]: With dead ends: 2984 [2024-10-24 02:11:21,324 INFO L226 Difference]: Without dead ends: 2630 [2024-10-24 02:11:21,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 02:11:21,327 INFO L432 NwaCegarLoop]: 4272 mSDtfsCounter, 1036 mSDsluCounter, 12217 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 16489 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:21,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 16489 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 02:11:21,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2024-10-24 02:11:21,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2490. [2024-10-24 02:11:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 2455 states have (on average 1.835030549898167) internal successors, (4505), 2457 states have internal predecessors, (4505), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 02:11:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 4559 transitions. [2024-10-24 02:11:21,394 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 4559 transitions. Word has length 171 [2024-10-24 02:11:21,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:21,395 INFO L471 AbstractCegarLoop]: Abstraction has 2490 states and 4559 transitions. [2024-10-24 02:11:21,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:21,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 4559 transitions. [2024-10-24 02:11:21,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:21,397 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:21,397 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:21,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:11:21,398 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:21,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:21,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1031825201, now seen corresponding path program 1 times [2024-10-24 02:11:21,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:21,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848244383] [2024-10-24 02:11:21,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:21,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:21,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:21,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:21,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:21,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:21,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:21,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:21,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848244383] [2024-10-24 02:11:21,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848244383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:21,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:21,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:11:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502741039] [2024-10-24 02:11:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:21,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:11:21,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:21,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:11:21,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:11:21,810 INFO L87 Difference]: Start difference. First operand 2490 states and 4559 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:25,167 INFO L93 Difference]: Finished difference Result 3491 states and 6239 transitions. [2024-10-24 02:11:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:11:25,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:25,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:25,184 INFO L225 Difference]: With dead ends: 3491 [2024-10-24 02:11:25,184 INFO L226 Difference]: Without dead ends: 3141 [2024-10-24 02:11:25,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:25,188 INFO L432 NwaCegarLoop]: 4238 mSDtfsCounter, 5542 mSDsluCounter, 12708 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 16946 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:25,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 16946 Invalid, 2578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 02:11:25,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2024-10-24 02:11:25,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2862. [2024-10-24 02:11:25,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2862 states, 2798 states have (on average 1.812723373838456) internal successors, (5072), 2801 states have internal predecessors, (5072), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2024-10-24 02:11:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 5173 transitions. [2024-10-24 02:11:25,317 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 5173 transitions. Word has length 171 [2024-10-24 02:11:25,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:25,318 INFO L471 AbstractCegarLoop]: Abstraction has 2862 states and 5173 transitions. [2024-10-24 02:11:25,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:25,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 5173 transitions. [2024-10-24 02:11:25,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:25,321 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:25,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:25,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:11:25,322 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:25,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:25,323 INFO L85 PathProgramCache]: Analyzing trace with hash 247523539, now seen corresponding path program 1 times [2024-10-24 02:11:25,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:25,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105324457] [2024-10-24 02:11:25,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:25,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:25,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:25,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105324457] [2024-10-24 02:11:25,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105324457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:25,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:25,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:25,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030460624] [2024-10-24 02:11:25,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:25,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:25,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:25,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:25,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:25,762 INFO L87 Difference]: Start difference. First operand 2862 states and 5173 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:30,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:30,359 INFO L93 Difference]: Finished difference Result 4396 states and 7749 transitions. [2024-10-24 02:11:30,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:11:30,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:30,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:30,373 INFO L225 Difference]: With dead ends: 4396 [2024-10-24 02:11:30,373 INFO L226 Difference]: Without dead ends: 3674 [2024-10-24 02:11:30,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:11:30,376 INFO L432 NwaCegarLoop]: 4449 mSDtfsCounter, 5591 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3997 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5611 SdHoareTripleChecker+Valid, 21912 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:30,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5611 Valid, 21912 Invalid, 4060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3997 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-24 02:11:30,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2024-10-24 02:11:30,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3205. [2024-10-24 02:11:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.7933804627249357) internal successors, (5581), 3116 states have internal predecessors, (5581), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-24 02:11:30,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5728 transitions. [2024-10-24 02:11:30,485 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5728 transitions. Word has length 171 [2024-10-24 02:11:30,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:30,485 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5728 transitions. [2024-10-24 02:11:30,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:30,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5728 transitions. [2024-10-24 02:11:30,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:30,488 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:30,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:30,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:11:30,489 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:30,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:30,490 INFO L85 PathProgramCache]: Analyzing trace with hash -17123951, now seen corresponding path program 1 times [2024-10-24 02:11:30,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:30,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540018224] [2024-10-24 02:11:30,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:30,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:30,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:30,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:30,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:30,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:30,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:30,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:30,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540018224] [2024-10-24 02:11:30,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540018224] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:30,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:30,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:30,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604552687] [2024-10-24 02:11:30,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:30,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:30,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:30,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:30,820 INFO L87 Difference]: Start difference. First operand 3205 states and 5728 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:32,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:32,858 INFO L93 Difference]: Finished difference Result 4759 states and 8350 transitions. [2024-10-24 02:11:32,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:32,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:32,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:32,873 INFO L225 Difference]: With dead ends: 4759 [2024-10-24 02:11:32,874 INFO L226 Difference]: Without dead ends: 3694 [2024-10-24 02:11:32,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:32,880 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5115 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 2047 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5136 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:32,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5136 Valid, 20880 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2047 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 02:11:32,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2024-10-24 02:11:32,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3205. [2024-10-24 02:11:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.7924164524421593) internal successors, (5578), 3116 states have internal predecessors, (5578), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-24 02:11:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5725 transitions. [2024-10-24 02:11:32,998 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5725 transitions. Word has length 171 [2024-10-24 02:11:32,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:32,998 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5725 transitions. [2024-10-24 02:11:32,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:32,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5725 transitions. [2024-10-24 02:11:33,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:33,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:33,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:33,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:11:33,001 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:33,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:33,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1340302897, now seen corresponding path program 1 times [2024-10-24 02:11:33,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:33,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519169370] [2024-10-24 02:11:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:33,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:33,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:33,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519169370] [2024-10-24 02:11:33,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519169370] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:33,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:33,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:33,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353005912] [2024-10-24 02:11:33,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:33,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:33,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:33,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:33,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:33,309 INFO L87 Difference]: Start difference. First operand 3205 states and 5725 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:35,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:35,201 INFO L93 Difference]: Finished difference Result 4755 states and 8333 transitions. [2024-10-24 02:11:35,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:35,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:35,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:35,215 INFO L225 Difference]: With dead ends: 4755 [2024-10-24 02:11:35,216 INFO L226 Difference]: Without dead ends: 3690 [2024-10-24 02:11:35,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:35,222 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5276 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5297 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:35,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5297 Valid, 16750 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:11:35,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2024-10-24 02:11:35,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 3205. [2024-10-24 02:11:35,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.791452442159383) internal successors, (5575), 3116 states have internal predecessors, (5575), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-24 02:11:35,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5722 transitions. [2024-10-24 02:11:35,343 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5722 transitions. Word has length 171 [2024-10-24 02:11:35,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:35,343 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5722 transitions. [2024-10-24 02:11:35,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:35,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5722 transitions. [2024-10-24 02:11:35,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:35,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:35,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:35,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:11:35,347 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:35,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:35,347 INFO L85 PathProgramCache]: Analyzing trace with hash 556676561, now seen corresponding path program 1 times [2024-10-24 02:11:35,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:35,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441383360] [2024-10-24 02:11:35,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:35,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:35,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:35,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:35,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441383360] [2024-10-24 02:11:35,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441383360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:35,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:35,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:35,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82524280] [2024-10-24 02:11:35,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:35,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:35,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:35,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:35,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:35,660 INFO L87 Difference]: Start difference. First operand 3205 states and 5722 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:37,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:37,369 INFO L93 Difference]: Finished difference Result 4751 states and 8316 transitions. [2024-10-24 02:11:37,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:37,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:37,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:37,384 INFO L225 Difference]: With dead ends: 4751 [2024-10-24 02:11:37,384 INFO L226 Difference]: Without dead ends: 3686 [2024-10-24 02:11:37,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:37,390 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5274 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:37,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5295 Valid, 16750 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:11:37,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2024-10-24 02:11:37,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3205. [2024-10-24 02:11:37,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.7904884318766068) internal successors, (5572), 3116 states have internal predecessors, (5572), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-24 02:11:37,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5719 transitions. [2024-10-24 02:11:37,505 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5719 transitions. Word has length 171 [2024-10-24 02:11:37,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:37,505 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5719 transitions. [2024-10-24 02:11:37,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:37,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5719 transitions. [2024-10-24 02:11:37,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:37,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:37,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:37,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:11:37,508 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:37,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:37,508 INFO L85 PathProgramCache]: Analyzing trace with hash 894964111, now seen corresponding path program 1 times [2024-10-24 02:11:37,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:37,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893086714] [2024-10-24 02:11:37,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:37,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:37,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:37,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:37,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:37,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:37,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:37,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:37,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:37,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893086714] [2024-10-24 02:11:37,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893086714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:37,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:37,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:37,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909440952] [2024-10-24 02:11:37,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:37,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:37,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:37,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:37,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:37,820 INFO L87 Difference]: Start difference. First operand 3205 states and 5719 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:41,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:41,213 INFO L93 Difference]: Finished difference Result 5709 states and 9880 transitions. [2024-10-24 02:11:41,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:11:41,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:41,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:41,238 INFO L225 Difference]: With dead ends: 5709 [2024-10-24 02:11:41,238 INFO L226 Difference]: Without dead ends: 4644 [2024-10-24 02:11:41,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:11:41,248 INFO L432 NwaCegarLoop]: 4247 mSDtfsCounter, 5674 mSDsluCounter, 16920 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:41,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5694 Valid, 21167 Invalid, 3358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 02:11:41,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4644 states. [2024-10-24 02:11:41,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4644 to 3904. [2024-10-24 02:11:41,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3753 states have (on average 1.7593924860111911) internal successors, (6603), 3759 states have internal predecessors, (6603), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-10-24 02:11:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 6846 transitions. [2024-10-24 02:11:41,415 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 6846 transitions. Word has length 171 [2024-10-24 02:11:41,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:41,415 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 6846 transitions. [2024-10-24 02:11:41,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:41,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 6846 transitions. [2024-10-24 02:11:41,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:41,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:41,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:41,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:11:41,420 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:41,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1321518609, now seen corresponding path program 1 times [2024-10-24 02:11:41,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:41,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205625357] [2024-10-24 02:11:41,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:41,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:41,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:41,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:41,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205625357] [2024-10-24 02:11:41,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205625357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:41,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:41,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:41,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803479889] [2024-10-24 02:11:41,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:41,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:41,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:41,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:41,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:41,775 INFO L87 Difference]: Start difference. First operand 3904 states and 6846 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:43,550 INFO L93 Difference]: Finished difference Result 6395 states and 10995 transitions. [2024-10-24 02:11:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:43,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:43,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:43,576 INFO L225 Difference]: With dead ends: 6395 [2024-10-24 02:11:43,576 INFO L226 Difference]: Without dead ends: 4631 [2024-10-24 02:11:43,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:43,586 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5273 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5294 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:43,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5294 Valid, 16750 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:11:43,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2024-10-24 02:11:43,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 3904. [2024-10-24 02:11:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3753 states have (on average 1.7580602184918732) internal successors, (6598), 3759 states have internal predecessors, (6598), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-10-24 02:11:43,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 6841 transitions. [2024-10-24 02:11:43,757 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 6841 transitions. Word has length 171 [2024-10-24 02:11:43,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:43,757 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 6841 transitions. [2024-10-24 02:11:43,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:43,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 6841 transitions. [2024-10-24 02:11:43,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:43,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:43,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:43,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:11:43,761 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:43,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:43,762 INFO L85 PathProgramCache]: Analyzing trace with hash 781089103, now seen corresponding path program 1 times [2024-10-24 02:11:43,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:43,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994127411] [2024-10-24 02:11:43,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:43,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:43,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:43,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:44,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:44,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:44,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:44,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:44,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:44,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994127411] [2024-10-24 02:11:44,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994127411] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:44,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:44,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:44,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984179678] [2024-10-24 02:11:44,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:44,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:44,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:44,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:44,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:44,059 INFO L87 Difference]: Start difference. First operand 3904 states and 6841 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:47,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:47,867 INFO L93 Difference]: Finished difference Result 8250 states and 14007 transitions. [2024-10-24 02:11:47,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:11:47,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:47,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:47,890 INFO L225 Difference]: With dead ends: 8250 [2024-10-24 02:11:47,890 INFO L226 Difference]: Without dead ends: 6486 [2024-10-24 02:11:47,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:11:47,898 INFO L432 NwaCegarLoop]: 4447 mSDtfsCounter, 5556 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3863 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5576 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:47,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5576 Valid, 21910 Invalid, 3928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3863 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 02:11:47,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6486 states. [2024-10-24 02:11:48,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6486 to 5302. [2024-10-24 02:11:48,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5035 states have (on average 1.717974180734856) internal successors, (8650), 5045 states have internal predecessors, (8650), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-10-24 02:11:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 9091 transitions. [2024-10-24 02:11:48,143 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 9091 transitions. Word has length 171 [2024-10-24 02:11:48,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:48,144 INFO L471 AbstractCegarLoop]: Abstraction has 5302 states and 9091 transitions. [2024-10-24 02:11:48,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:48,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 9091 transitions. [2024-10-24 02:11:48,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:48,148 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:48,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:48,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:11:48,148 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:48,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:48,149 INFO L85 PathProgramCache]: Analyzing trace with hash 625108561, now seen corresponding path program 1 times [2024-10-24 02:11:48,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:48,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274566688] [2024-10-24 02:11:48,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:48,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:48,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:48,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:48,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:48,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:48,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:48,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:48,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:48,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274566688] [2024-10-24 02:11:48,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274566688] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:48,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:48,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:48,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256154085] [2024-10-24 02:11:48,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:48,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:48,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:48,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:48,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:48,440 INFO L87 Difference]: Start difference. First operand 5302 states and 9091 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:52,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:52,345 INFO L93 Difference]: Finished difference Result 13338 states and 22315 transitions. [2024-10-24 02:11:52,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:11:52,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:52,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:52,375 INFO L225 Difference]: With dead ends: 13338 [2024-10-24 02:11:52,375 INFO L226 Difference]: Without dead ends: 10176 [2024-10-24 02:11:52,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:11:52,388 INFO L432 NwaCegarLoop]: 4447 mSDtfsCounter, 5561 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5581 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:52,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5581 Valid, 21910 Invalid, 3910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 02:11:52,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10176 states. [2024-10-24 02:11:52,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10176 to 8103. [2024-10-24 02:11:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7604 states have (on average 1.6780641767490794) internal successors, (12760), 7622 states have internal predecessors, (12760), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-10-24 02:11:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 13615 transitions. [2024-10-24 02:11:52,812 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 13615 transitions. Word has length 171 [2024-10-24 02:11:52,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:52,812 INFO L471 AbstractCegarLoop]: Abstraction has 8103 states and 13615 transitions. [2024-10-24 02:11:52,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:52,813 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 13615 transitions. [2024-10-24 02:11:52,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:52,817 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:52,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:52,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:11:52,818 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:52,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:52,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1035718927, now seen corresponding path program 1 times [2024-10-24 02:11:52,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:52,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554086221] [2024-10-24 02:11:52,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:52,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:52,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:52,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:53,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:53,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:53,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:53,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:53,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554086221] [2024-10-24 02:11:53,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554086221] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:53,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:53,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:53,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075906875] [2024-10-24 02:11:53,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:53,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:53,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:53,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:53,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:53,086 INFO L87 Difference]: Start difference. First operand 8103 states and 13615 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:55,061 INFO L93 Difference]: Finished difference Result 16213 states and 27056 transitions. [2024-10-24 02:11:55,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:55,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:55,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:55,092 INFO L225 Difference]: With dead ends: 16213 [2024-10-24 02:11:55,092 INFO L226 Difference]: Without dead ends: 10250 [2024-10-24 02:11:55,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:55,109 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5277 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5298 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:55,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5298 Valid, 16750 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:11:55,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10250 states. [2024-10-24 02:11:55,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10250 to 8103. [2024-10-24 02:11:55,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7604 states have (on average 1.675828511309837) internal successors, (12743), 7622 states have internal predecessors, (12743), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-10-24 02:11:55,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 13598 transitions. [2024-10-24 02:11:55,521 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 13598 transitions. Word has length 171 [2024-10-24 02:11:55,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:55,521 INFO L471 AbstractCegarLoop]: Abstraction has 8103 states and 13598 transitions. [2024-10-24 02:11:55,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:55,521 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 13598 transitions. [2024-10-24 02:11:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:55,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:55,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:55,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:11:55,528 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:55,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:55,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1100164275, now seen corresponding path program 1 times [2024-10-24 02:11:55,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:55,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023410335] [2024-10-24 02:11:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:55,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:55,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:55,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:55,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:55,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:55,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:55,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:55,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:55,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023410335] [2024-10-24 02:11:55,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023410335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:55,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:55,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:55,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931026968] [2024-10-24 02:11:55,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:55,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:55,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:55,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:55,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:55,773 INFO L87 Difference]: Start difference. First operand 8103 states and 13598 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:58,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:58,129 INFO L93 Difference]: Finished difference Result 16195 states and 26969 transitions. [2024-10-24 02:11:58,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:58,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:11:58,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:58,162 INFO L225 Difference]: With dead ends: 16195 [2024-10-24 02:11:58,162 INFO L226 Difference]: Without dead ends: 10232 [2024-10-24 02:11:58,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:58,186 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5112 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:58,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5133 Valid, 20880 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 02:11:58,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10232 states. [2024-10-24 02:11:58,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10232 to 8103. [2024-10-24 02:11:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7604 states have (on average 1.6735928458705944) internal successors, (12726), 7622 states have internal predecessors, (12726), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-10-24 02:11:58,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 13581 transitions. [2024-10-24 02:11:58,758 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 13581 transitions. Word has length 171 [2024-10-24 02:11:58,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:58,759 INFO L471 AbstractCegarLoop]: Abstraction has 8103 states and 13581 transitions. [2024-10-24 02:11:58,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:11:58,759 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 13581 transitions. [2024-10-24 02:11:58,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:11:58,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:58,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:11:58,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:11:58,764 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:58,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:58,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1030516401, now seen corresponding path program 1 times [2024-10-24 02:11:58,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:58,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094267448] [2024-10-24 02:11:58,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:58,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:58,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:58,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:11:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:59,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:11:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:59,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:11:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:59,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:11:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:59,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:59,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:59,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094267448] [2024-10-24 02:11:59,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094267448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:59,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:59,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:59,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072778839] [2024-10-24 02:11:59,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:59,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:59,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:59,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:59,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:59,028 INFO L87 Difference]: Start difference. First operand 8103 states and 13581 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:12:03,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:12:03,591 INFO L93 Difference]: Finished difference Result 23459 states and 38713 transitions. [2024-10-24 02:12:03,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:12:03,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:12:03,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:12:03,645 INFO L225 Difference]: With dead ends: 23459 [2024-10-24 02:12:03,645 INFO L226 Difference]: Without dead ends: 17496 [2024-10-24 02:12:03,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:12:03,669 INFO L432 NwaCegarLoop]: 4447 mSDtfsCounter, 5542 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:12:03,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 21910 Invalid, 3833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-24 02:12:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17496 states. [2024-10-24 02:12:04,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17496 to 13771. [2024-10-24 02:12:04,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13771 states, 12808 states have (on average 1.6400687070580886) internal successors, (21006), 12842 states have internal predecessors, (21006), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-10-24 02:12:04,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13771 states to 13771 states and 22743 transitions. [2024-10-24 02:12:04,410 INFO L78 Accepts]: Start accepts. Automaton has 13771 states and 22743 transitions. Word has length 171 [2024-10-24 02:12:04,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:12:04,411 INFO L471 AbstractCegarLoop]: Abstraction has 13771 states and 22743 transitions. [2024-10-24 02:12:04,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:12:04,411 INFO L276 IsEmpty]: Start isEmpty. Operand 13771 states and 22743 transitions. [2024-10-24 02:12:04,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:12:04,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:12:04,419 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:12:04,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 02:12:04,420 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:12:04,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:12:04,420 INFO L85 PathProgramCache]: Analyzing trace with hash -612627699, now seen corresponding path program 1 times [2024-10-24 02:12:04,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:12:04,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154018895] [2024-10-24 02:12:04,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:12:04,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:12:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:04,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:12:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:04,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:12:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:04,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:12:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:04,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:12:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:04,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:12:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:04,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:12:04,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:12:04,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154018895] [2024-10-24 02:12:04,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154018895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:12:04,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:12:04,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:12:04,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751241972] [2024-10-24 02:12:04,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:12:04,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:12:04,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:12:04,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:12:04,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:12:04,882 INFO L87 Difference]: Start difference. First operand 13771 states and 22743 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:12:09,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:12:09,832 INFO L93 Difference]: Finished difference Result 49061 states and 80615 transitions. [2024-10-24 02:12:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:12:09,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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 171 [2024-10-24 02:12:09,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:12:09,953 INFO L225 Difference]: With dead ends: 49061 [2024-10-24 02:12:09,953 INFO L226 Difference]: Without dead ends: 37430 [2024-10-24 02:12:09,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:12:09,999 INFO L432 NwaCegarLoop]: 4249 mSDtfsCounter, 6106 mSDsluCounter, 16918 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6140 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:12:10,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6140 Valid, 21167 Invalid, 3267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3161 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 02:12:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37430 states. [2024-10-24 02:12:11,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37430 to 25068. [2024-10-24 02:12:11,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25068 states, 23209 states have (on average 1.6186824076866733) internal successors, (37568), 23275 states have internal predecessors, (37568), 1403 states have call successors, (1403), 390 states have call predecessors, (1403), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2024-10-24 02:12:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25068 states to 25068 states and 41167 transitions. [2024-10-24 02:12:11,702 INFO L78 Accepts]: Start accepts. Automaton has 25068 states and 41167 transitions. Word has length 171 [2024-10-24 02:12:11,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:12:11,702 INFO L471 AbstractCegarLoop]: Abstraction has 25068 states and 41167 transitions. [2024-10-24 02:12:11,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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) [2024-10-24 02:12:11,703 INFO L276 IsEmpty]: Start isEmpty. Operand 25068 states and 41167 transitions. [2024-10-24 02:12:11,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:12:11,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:12:11,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:12:11,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 02:12:11,718 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:12:11,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:12:11,718 INFO L85 PathProgramCache]: Analyzing trace with hash 786325903, now seen corresponding path program 1 times [2024-10-24 02:12:11,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:12:11,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536316822] [2024-10-24 02:12:11,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:12:11,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:12:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:11,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:12:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:11,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:12:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:12,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:12:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:12,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:12:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:12,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:12:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:12:12,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:12:12,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:12:12,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536316822] [2024-10-24 02:12:12,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536316822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:12:12,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:12:12,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:12:12,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990356985] [2024-10-24 02:12:12,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:12:12,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:12:12,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:12:12,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:12:12,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:12:12,049 INFO L87 Difference]: Start difference. First operand 25068 states and 41167 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (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)