./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_label46+token_ring.06.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 2dda75b6d46698b5258f612b82d0e93d324481eaa047be7e62672a619c582b4e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 04:22:23,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 04:22:23,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 04:22:23,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 04:22:23,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 04:22:23,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 04:22:23,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 04:22:23,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 04:22:23,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 04:22:23,874 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 04:22:23,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 04:22:23,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 04:22:23,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 04:22:23,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 04:22:23,877 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 04:22:23,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 04:22:23,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 04:22:23,879 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 04:22:23,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 04:22:23,882 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 04:22:23,882 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 04:22:23,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 04:22:23,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 04:22:23,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 04:22:23,884 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 04:22:23,886 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 04:22:23,886 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 04:22:23,887 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 04:22:23,887 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 04:22:23,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 04:22:23,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 04:22:23,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 04:22:23,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:22:23,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 04:22:23,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 04:22:23,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 04:22:23,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 04:22:23,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 04:22:23,890 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 04:22:23,890 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 04:22:23,890 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 04:22:23,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 04:22:23,891 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dda75b6d46698b5258f612b82d0e93d324481eaa047be7e62672a619c582b4e [2024-10-11 04:22:24,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 04:22:24,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 04:22:24,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 04:22:24,188 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 04:22:24,189 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 04:22:24,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c [2024-10-11 04:22:25,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 04:22:26,294 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 04:22:26,294 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c [2024-10-11 04:22:26,355 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fac7b0c62/31412a72a4c0401fbcc1e537492ca759/FLAGd0ef499c4 [2024-10-11 04:22:26,793 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fac7b0c62/31412a72a4c0401fbcc1e537492ca759 [2024-10-11 04:22:26,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 04:22:26,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 04:22:26,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 04:22:26,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 04:22:26,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 04:22:26,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:22:26" (1/1) ... [2024-10-11 04:22:26,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c5df3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:26, skipping insertion in model container [2024-10-11 04:22:26,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:22:26" (1/1) ... [2024-10-11 04:22:27,023 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 04:22:28,692 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_label46+token_ring.06.cil-2.c[382357,382370] [2024-10-11 04:22:28,722 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_label46+token_ring.06.cil-2.c[383339,383352] [2024-10-11 04:22:28,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:22:28,978 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 04:22:29,812 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_label46+token_ring.06.cil-2.c[382357,382370] [2024-10-11 04:22:29,817 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_label46+token_ring.06.cil-2.c[383339,383352] [2024-10-11 04:22:29,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:22:29,904 INFO L204 MainTranslator]: Completed translation [2024-10-11 04:22:29,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29 WrapperNode [2024-10-11 04:22:29,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 04:22:29,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 04:22:29,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 04:22:29,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 04:22:29,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:30,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:30,362 INFO L138 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12873 [2024-10-11 04:22:30,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 04:22:30,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 04:22:30,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 04:22:30,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 04:22:30,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:30,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:30,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:30,642 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]. [2024-10-11 04:22:30,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:30,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:30,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:30,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:30,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:31,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:31,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 04:22:31,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 04:22:31,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 04:22:31,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 04:22:31,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (1/1) ... [2024-10-11 04:22:31,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:22:31,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:22:31,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 04:22:31,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 04:22:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 04:22:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-11 04:22:31,234 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-11 04:22:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-11 04:22:31,236 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-11 04:22:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-11 04:22:31,236 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-11 04:22:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-11 04:22:31,237 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-11 04:22:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-11 04:22:31,237 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-11 04:22:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-11 04:22:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-11 04:22:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 04:22:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 04:22:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 04:22:31,453 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 04:22:31,455 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 04:22:39,598 INFO L? ?]: Removed 1719 outVars from TransFormulas that were not future-live. [2024-10-11 04:22:39,598 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 04:22:39,748 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 04:22:39,748 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-11 04:22:39,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:22:39 BoogieIcfgContainer [2024-10-11 04:22:39,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 04:22:39,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 04:22:39,752 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 04:22:39,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 04:22:39,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:22:26" (1/3) ... [2024-10-11 04:22:39,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583761cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:22:39, skipping insertion in model container [2024-10-11 04:22:39,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:22:29" (2/3) ... [2024-10-11 04:22:39,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583761cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:22:39, skipping insertion in model container [2024-10-11 04:22:39,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:22:39" (3/3) ... [2024-10-11 04:22:39,761 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.06.cil-2.c [2024-10-11 04:22:39,779 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 04:22:39,779 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 04:22:39,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 04:22:39,912 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;@7ca6652a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 04:22:39,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 04:22:39,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 2333 states, 2304 states have (on average 1.8815104166666667) internal successors, (4335), 2307 states have internal predecessors, (4335), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 04:22:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:22:39,943 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:22:39,944 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] [2024-10-11 04:22:39,944 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:22:39,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:22:39,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1496912962, now seen corresponding path program 1 times [2024-10-11 04:22:39,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:22:39,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519844679] [2024-10-11 04:22:39,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:22:39,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:22:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:40,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:22:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:40,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:22:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:40,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:22:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:40,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:22:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:40,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:22:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:40,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:22:40,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:22:40,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519844679] [2024-10-11 04:22:40,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519844679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:22:40,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:22:40,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 04:22:40,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801147420] [2024-10-11 04:22:40,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:22:40,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 04:22:40,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:22:40,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 04:22:40,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 04:22:40,551 INFO L87 Difference]: Start difference. First operand has 2333 states, 2304 states have (on average 1.8815104166666667) internal successors, (4335), 2307 states have internal predecessors, (4335), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-10-11 04:22:41,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:22:41,838 INFO L93 Difference]: Finished difference Result 4728 states and 8858 transitions. [2024-10-11 04:22:41,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:22:41,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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 101 [2024-10-11 04:22:41,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:22:41,874 INFO L225 Difference]: With dead ends: 4728 [2024-10-11 04:22:41,875 INFO L226 Difference]: Without dead ends: 2399 [2024-10-11 04:22:41,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:22:41,893 INFO L432 NwaCegarLoop]: 4143 mSDtfsCounter, 553 mSDsluCounter, 12072 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 16215 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 04:22:41,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 16215 Invalid, 643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 04:22:41,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2024-10-11 04:22:42,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 2329. [2024-10-11 04:22:42,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2301 states have (on average 1.8457192524989134) internal successors, (4247), 2303 states have internal predecessors, (4247), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 04:22:42,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4287 transitions. [2024-10-11 04:22:42,080 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4287 transitions. Word has length 101 [2024-10-11 04:22:42,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:22:42,081 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 4287 transitions. [2024-10-11 04:22:42,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-10-11 04:22:42,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4287 transitions. [2024-10-11 04:22:42,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:22:42,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:22:42,088 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] [2024-10-11 04:22:42,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 04:22:42,089 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:22:42,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:22:42,090 INFO L85 PathProgramCache]: Analyzing trace with hash 920991104, now seen corresponding path program 1 times [2024-10-11 04:22:42,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:22:42,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077412391] [2024-10-11 04:22:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:22:42,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:22:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:42,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:22:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:42,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:22:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:42,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:22:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:42,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:22:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:42,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:22:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:22:42,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:22:42,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077412391] [2024-10-11 04:22:42,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077412391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:22:42,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:22:42,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:22:42,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199553987] [2024-10-11 04:22:42,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:22:42,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:22:42,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:22:42,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:22:42,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:22:42,550 INFO L87 Difference]: Start difference. First operand 2329 states and 4287 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:45,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:22:45,024 INFO L93 Difference]: Finished difference Result 2881 states and 5198 transitions. [2024-10-11 04:22:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:22:45,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:22:45,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:22:45,039 INFO L225 Difference]: With dead ends: 2881 [2024-10-11 04:22:45,039 INFO L226 Difference]: Without dead ends: 2685 [2024-10-11 04:22:45,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:22:45,043 INFO L432 NwaCegarLoop]: 4241 mSDtfsCounter, 4743 mSDsluCounter, 16733 mSDsCounter, 0 mSdLazyCounter, 2172 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4756 SdHoareTripleChecker+Valid, 20974 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 04:22:45,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4756 Valid, 20974 Invalid, 2226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 2172 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 04:22:45,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2024-10-11 04:22:45,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2536. [2024-10-11 04:22:45,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 2483 states have (on average 1.829238824003222) internal successors, (4542), 2487 states have internal predecessors, (4542), 37 states have call successors, (37), 12 states have call predecessors, (37), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2024-10-11 04:22:45,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 4623 transitions. [2024-10-11 04:22:45,118 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 4623 transitions. Word has length 101 [2024-10-11 04:22:45,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:22:45,119 INFO L471 AbstractCegarLoop]: Abstraction has 2536 states and 4623 transitions. [2024-10-11 04:22:45,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:45,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 4623 transitions. [2024-10-11 04:22:45,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:22:45,123 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:22:45,123 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] [2024-10-11 04:22:45,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 04:22:45,123 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:22:45,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:22:45,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1497493374, now seen corresponding path program 1 times [2024-10-11 04:22:45,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:22:45,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045428589] [2024-10-11 04:22:45,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:22:45,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:22:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:45,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:22:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:45,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:22:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:45,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:22:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:45,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:22:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:45,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:22:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:45,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:22:45,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:22:45,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045428589] [2024-10-11 04:22:45,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045428589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:22:45,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:22:45,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:22:45,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016948087] [2024-10-11 04:22:45,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:22:45,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:22:45,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:22:45,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:22:45,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:22:45,351 INFO L87 Difference]: Start difference. First operand 2536 states and 4623 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:47,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:22:47,391 INFO L93 Difference]: Finished difference Result 3580 states and 6330 transitions. [2024-10-11 04:22:47,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:22:47,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:22:47,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:22:47,409 INFO L225 Difference]: With dead ends: 3580 [2024-10-11 04:22:47,409 INFO L226 Difference]: Without dead ends: 3179 [2024-10-11 04:22:47,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:22:47,414 INFO L432 NwaCegarLoop]: 4202 mSDtfsCounter, 4768 mSDsluCounter, 16681 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 20883 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:22:47,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4781 Valid, 20883 Invalid, 2026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 04:22:47,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2024-10-11 04:22:47,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 2914. [2024-10-11 04:22:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.8008519701810437) internal successors, (5073), 2823 states have internal predecessors, (5073), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-11 04:22:47,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5224 transitions. [2024-10-11 04:22:47,526 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5224 transitions. Word has length 101 [2024-10-11 04:22:47,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:22:47,527 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 5224 transitions. [2024-10-11 04:22:47,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:47,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5224 transitions. [2024-10-11 04:22:47,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:22:47,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:22:47,530 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] [2024-10-11 04:22:47,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 04:22:47,531 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:22:47,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:22:47,531 INFO L85 PathProgramCache]: Analyzing trace with hash 918342976, now seen corresponding path program 1 times [2024-10-11 04:22:47,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:22:47,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005405892] [2024-10-11 04:22:47,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:22:47,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:22:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:47,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:22:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:47,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:22:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:47,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:22:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:47,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:22:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:47,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:22:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:47,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:22:47,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:22:47,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005405892] [2024-10-11 04:22:47,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005405892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:22:47,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:22:47,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:22:47,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612081000] [2024-10-11 04:22:47,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:22:47,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:22:47,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:22:47,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:22:47,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:22:47,734 INFO L87 Difference]: Start difference. First operand 2914 states and 5224 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:48,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:22:48,781 INFO L93 Difference]: Finished difference Result 3965 states and 6956 transitions. [2024-10-11 04:22:48,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:22:48,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:22:48,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:22:48,803 INFO L225 Difference]: With dead ends: 3965 [2024-10-11 04:22:48,803 INFO L226 Difference]: Without dead ends: 3184 [2024-10-11 04:22:48,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:22:48,812 INFO L432 NwaCegarLoop]: 4107 mSDtfsCounter, 4644 mSDsluCounter, 12226 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4658 SdHoareTripleChecker+Valid, 16333 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 04:22:48,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4658 Valid, 16333 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 04:22:48,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2024-10-11 04:22:48,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 2914. [2024-10-11 04:22:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.7990770323038694) internal successors, (5068), 2823 states have internal predecessors, (5068), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-11 04:22:48,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5219 transitions. [2024-10-11 04:22:48,938 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5219 transitions. Word has length 101 [2024-10-11 04:22:48,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:22:48,939 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 5219 transitions. [2024-10-11 04:22:48,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:48,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5219 transitions. [2024-10-11 04:22:48,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:22:48,942 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:22:48,942 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] [2024-10-11 04:22:48,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 04:22:48,943 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:22:48,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:22:48,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2051768126, now seen corresponding path program 1 times [2024-10-11 04:22:48,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:22:48,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766193797] [2024-10-11 04:22:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:22:48,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:22:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:49,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:22:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:49,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:22:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:49,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:22:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:49,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:22:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:49,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:22:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:49,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:22:49,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:22:49,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766193797] [2024-10-11 04:22:49,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766193797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:22:49,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:22:49,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:22:49,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206126967] [2024-10-11 04:22:49,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:22:49,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:22:49,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:22:49,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:22:49,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:22:49,135 INFO L87 Difference]: Start difference. First operand 2914 states and 5219 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:50,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:22:50,100 INFO L93 Difference]: Finished difference Result 3961 states and 6935 transitions. [2024-10-11 04:22:50,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:22:50,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:22:50,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:22:50,116 INFO L225 Difference]: With dead ends: 3961 [2024-10-11 04:22:50,117 INFO L226 Difference]: Without dead ends: 3180 [2024-10-11 04:22:50,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:22:50,123 INFO L432 NwaCegarLoop]: 4107 mSDtfsCounter, 4642 mSDsluCounter, 12226 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4656 SdHoareTripleChecker+Valid, 16333 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 04:22:50,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4656 Valid, 16333 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 04:22:50,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2024-10-11 04:22:50,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 2914. [2024-10-11 04:22:50,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.797302094426695) internal successors, (5063), 2823 states have internal predecessors, (5063), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-11 04:22:50,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5214 transitions. [2024-10-11 04:22:50,221 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5214 transitions. Word has length 101 [2024-10-11 04:22:50,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:22:50,221 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 5214 transitions. [2024-10-11 04:22:50,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:50,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5214 transitions. [2024-10-11 04:22:50,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:22:50,224 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:22:50,224 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] [2024-10-11 04:22:50,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 04:22:50,224 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:22:50,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:22:50,225 INFO L85 PathProgramCache]: Analyzing trace with hash -485010176, now seen corresponding path program 1 times [2024-10-11 04:22:50,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:22:50,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279717196] [2024-10-11 04:22:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:22:50,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:22:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:50,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:22:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:50,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:22:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:50,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:22:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:50,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:22:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:50,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:22:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:22:50,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:22:50,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279717196] [2024-10-11 04:22:50,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279717196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:22:50,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:22:50,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:22:50,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474708891] [2024-10-11 04:22:50,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:22:50,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:22:50,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:22:50,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:22:50,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:22:50,413 INFO L87 Difference]: Start difference. First operand 2914 states and 5214 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:51,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:22:51,427 INFO L93 Difference]: Finished difference Result 3956 states and 6912 transitions. [2024-10-11 04:22:51,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:22:51,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:22:51,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:22:51,443 INFO L225 Difference]: With dead ends: 3956 [2024-10-11 04:22:51,443 INFO L226 Difference]: Without dead ends: 3175 [2024-10-11 04:22:51,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:22:51,448 INFO L432 NwaCegarLoop]: 4107 mSDtfsCounter, 4555 mSDsluCounter, 16280 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 20387 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 04:22:51,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4569 Valid, 20387 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 04:22:51,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2024-10-11 04:22:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 2914. [2024-10-11 04:22:51,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.7955271565495208) internal successors, (5058), 2823 states have internal predecessors, (5058), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-11 04:22:51,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5209 transitions. [2024-10-11 04:22:51,682 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5209 transitions. Word has length 101 [2024-10-11 04:22:51,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:22:51,683 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 5209 transitions. [2024-10-11 04:22:51,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:51,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5209 transitions. [2024-10-11 04:22:51,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:22:51,685 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:22:51,685 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] [2024-10-11 04:22:51,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 04:22:51,686 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:22:51,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:22:51,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1542848254, now seen corresponding path program 1 times [2024-10-11 04:22:51,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:22:51,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832018794] [2024-10-11 04:22:51,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:22:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:22:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:51,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:22:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:51,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:22:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:51,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:22:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:51,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:22:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:51,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:22:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:51,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:22:51,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:22:51,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832018794] [2024-10-11 04:22:51,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832018794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:22:51,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:22:51,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:22:51,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914250482] [2024-10-11 04:22:51,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:22:51,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:22:51,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:22:51,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:22:51,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:22:51,880 INFO L87 Difference]: Start difference. First operand 2914 states and 5209 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:53,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:22:53,671 INFO L93 Difference]: Finished difference Result 4927 states and 8441 transitions. [2024-10-11 04:22:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:22:53,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:22:53,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:22:53,697 INFO L225 Difference]: With dead ends: 4927 [2024-10-11 04:22:53,697 INFO L226 Difference]: Without dead ends: 4148 [2024-10-11 04:22:53,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:22:53,706 INFO L432 NwaCegarLoop]: 4240 mSDtfsCounter, 4734 mSDsluCounter, 16733 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 20973 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:22:53,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 20973 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 04:22:53,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2024-10-11 04:22:53,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3681. [2024-10-11 04:22:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3681 states, 3496 states have (on average 1.7502860411899313) internal successors, (6119), 3506 states have internal predecessors, (6119), 127 states have call successors, (127), 48 states have call predecessors, (127), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2024-10-11 04:22:53,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 6416 transitions. [2024-10-11 04:22:53,858 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 6416 transitions. Word has length 101 [2024-10-11 04:22:53,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:22:53,858 INFO L471 AbstractCegarLoop]: Abstraction has 3681 states and 6416 transitions. [2024-10-11 04:22:53,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:53,859 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 6416 transitions. [2024-10-11 04:22:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:22:53,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:22:53,862 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] [2024-10-11 04:22:53,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 04:22:53,863 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:22:53,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:22:53,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1609616576, now seen corresponding path program 1 times [2024-10-11 04:22:53,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:22:53,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223299527] [2024-10-11 04:22:53,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:22:53,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:22:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:53,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:22:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:53,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:22:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:54,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:22:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:54,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:22:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:54,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:22:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:22:54,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:22:54,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223299527] [2024-10-11 04:22:54,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223299527] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:22:54,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:22:54,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:22:54,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394159155] [2024-10-11 04:22:54,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:22:54,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:22:54,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:22:54,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:22:54,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:22:54,032 INFO L87 Difference]: Start difference. First operand 3681 states and 6416 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:56,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:22:56,182 INFO L93 Difference]: Finished difference Result 8286 states and 13806 transitions. [2024-10-11 04:22:56,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:22:56,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:22:56,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:22:56,243 INFO L225 Difference]: With dead ends: 8286 [2024-10-11 04:22:56,244 INFO L226 Difference]: Without dead ends: 6740 [2024-10-11 04:22:56,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:22:56,255 INFO L432 NwaCegarLoop]: 4235 mSDtfsCounter, 4964 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:22:56,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4984 Valid, 20963 Invalid, 2108 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 04:22:56,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6740 states. [2024-10-11 04:22:56,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6740 to 5206. [2024-10-11 04:22:56,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5206 states, 4853 states have (on average 1.6985369874304554) internal successors, (8243), 4871 states have internal predecessors, (8243), 239 states have call successors, (239), 96 states have call predecessors, (239), 112 states have return successors, (352), 254 states have call predecessors, (352), 239 states have call successors, (352) [2024-10-11 04:22:56,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5206 states to 5206 states and 8834 transitions. [2024-10-11 04:22:56,630 INFO L78 Accepts]: Start accepts. Automaton has 5206 states and 8834 transitions. Word has length 101 [2024-10-11 04:22:56,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:22:56,631 INFO L471 AbstractCegarLoop]: Abstraction has 5206 states and 8834 transitions. [2024-10-11 04:22:56,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:56,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5206 states and 8834 transitions. [2024-10-11 04:22:56,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:22:56,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:22:56,637 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] [2024-10-11 04:22:56,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 04:22:56,637 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:22:56,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:22:56,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1849856322, now seen corresponding path program 1 times [2024-10-11 04:22:56,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:22:56,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598052669] [2024-10-11 04:22:56,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:22:56,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:22:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:56,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:22:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:56,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:22:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:56,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:22:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:56,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:22:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:56,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:22:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:22:56,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:22:56,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598052669] [2024-10-11 04:22:56,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598052669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:22:56,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:22:56,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:22:56,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5095791] [2024-10-11 04:22:56,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:22:56,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:22:56,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:22:56,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:22:56,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:22:56,863 INFO L87 Difference]: Start difference. First operand 5206 states and 8834 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:22:59,218 INFO L93 Difference]: Finished difference Result 13949 states and 22916 transitions. [2024-10-11 04:22:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:22:59,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:22:59,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:22:59,262 INFO L225 Difference]: With dead ends: 13949 [2024-10-11 04:22:59,262 INFO L226 Difference]: Without dead ends: 10878 [2024-10-11 04:22:59,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:22:59,281 INFO L432 NwaCegarLoop]: 4237 mSDtfsCounter, 4907 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4927 SdHoareTripleChecker+Valid, 20965 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:22:59,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4927 Valid, 20965 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 04:22:59,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10878 states. [2024-10-11 04:22:59,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10878 to 8271. [2024-10-11 04:22:59,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8271 states, 7590 states have (on average 1.6517786561264822) internal successors, (12537), 7624 states have internal predecessors, (12537), 455 states have call successors, (455), 192 states have call predecessors, (455), 224 states have return successors, (762), 486 states have call predecessors, (762), 455 states have call successors, (762) [2024-10-11 04:22:59,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8271 states to 8271 states and 13754 transitions. [2024-10-11 04:22:59,781 INFO L78 Accepts]: Start accepts. Automaton has 8271 states and 13754 transitions. Word has length 101 [2024-10-11 04:22:59,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:22:59,781 INFO L471 AbstractCegarLoop]: Abstraction has 8271 states and 13754 transitions. [2024-10-11 04:22:59,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:22:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 8271 states and 13754 transitions. [2024-10-11 04:22:59,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:22:59,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:22:59,789 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] [2024-10-11 04:22:59,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 04:22:59,790 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:22:59,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:22:59,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1876921924, now seen corresponding path program 1 times [2024-10-11 04:22:59,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:22:59,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125352173] [2024-10-11 04:22:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:22:59,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:22:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:59,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:22:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:59,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:22:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:59,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:22:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:59,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:22:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:59,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:22:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:22:59,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:22:59,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:22:59,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125352173] [2024-10-11 04:22:59,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125352173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:22:59,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:22:59,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:22:59,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402323916] [2024-10-11 04:22:59,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:22:59,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:22:59,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:22:59,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:22:59,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:22:59,965 INFO L87 Difference]: Start difference. First operand 8271 states and 13754 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:23:02,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:02,613 INFO L93 Difference]: Finished difference Result 25224 states and 41230 transitions. [2024-10-11 04:23:02,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:23:02,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:23:02,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:02,698 INFO L225 Difference]: With dead ends: 25224 [2024-10-11 04:23:02,698 INFO L226 Difference]: Without dead ends: 19088 [2024-10-11 04:23:02,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:23:02,734 INFO L432 NwaCegarLoop]: 4204 mSDtfsCounter, 4884 mSDsluCounter, 16679 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 20883 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:02,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4904 Valid, 20883 Invalid, 1924 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 04:23:02,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19088 states. [2024-10-11 04:23:03,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19088 to 14401. [2024-10-11 04:23:03,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14401 states, 13080 states have (on average 1.6175076452599388) internal successors, (21157), 13146 states have internal predecessors, (21157), 871 states have call successors, (871), 384 states have call predecessors, (871), 448 states have return successors, (1728), 934 states have call predecessors, (1728), 871 states have call successors, (1728) [2024-10-11 04:23:03,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 23756 transitions. [2024-10-11 04:23:03,664 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 23756 transitions. Word has length 101 [2024-10-11 04:23:03,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:03,664 INFO L471 AbstractCegarLoop]: Abstraction has 14401 states and 23756 transitions. [2024-10-11 04:23:03,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:23:03,665 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 23756 transitions. [2024-10-11 04:23:03,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:23:03,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:03,675 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] [2024-10-11 04:23:03,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 04:23:03,676 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:03,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:03,676 INFO L85 PathProgramCache]: Analyzing trace with hash -200414974, now seen corresponding path program 1 times [2024-10-11 04:23:03,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:03,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452841095] [2024-10-11 04:23:03,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:03,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:03,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:03,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:23:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:03,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:23:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:03,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:23:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:03,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:23:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:03,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:03,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:03,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452841095] [2024-10-11 04:23:03,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452841095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:03,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:03,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:03,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370621799] [2024-10-11 04:23:03,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:03,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:03,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:03,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:03,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:03,844 INFO L87 Difference]: Start difference. First operand 14401 states and 23756 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:23:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:07,498 INFO L93 Difference]: Finished difference Result 47294 states and 77674 transitions. [2024-10-11 04:23:07,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:23:07,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:23:07,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:07,676 INFO L225 Difference]: With dead ends: 47294 [2024-10-11 04:23:07,676 INFO L226 Difference]: Without dead ends: 35028 [2024-10-11 04:23:07,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:23:07,741 INFO L432 NwaCegarLoop]: 4235 mSDtfsCounter, 4775 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4787 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:07,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4787 Valid, 20963 Invalid, 2229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 04:23:07,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35028 states. [2024-10-11 04:23:09,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35028 to 26661. [2024-10-11 04:23:09,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26661 states, 24092 states have (on average 1.596422048812884) internal successors, (38461), 24222 states have internal predecessors, (38461), 1671 states have call successors, (1671), 768 states have call predecessors, (1671), 896 states have return successors, (4114), 1798 states have call predecessors, (4114), 1671 states have call successors, (4114) [2024-10-11 04:23:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26661 states to 26661 states and 44246 transitions. [2024-10-11 04:23:09,694 INFO L78 Accepts]: Start accepts. Automaton has 26661 states and 44246 transitions. Word has length 101 [2024-10-11 04:23:09,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:09,697 INFO L471 AbstractCegarLoop]: Abstraction has 26661 states and 44246 transitions. [2024-10-11 04:23:09,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:23:09,698 INFO L276 IsEmpty]: Start isEmpty. Operand 26661 states and 44246 transitions. [2024-10-11 04:23:09,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:23:09,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:09,718 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] [2024-10-11 04:23:09,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 04:23:09,719 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:09,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1533689476, now seen corresponding path program 1 times [2024-10-11 04:23:09,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:09,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857647413] [2024-10-11 04:23:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:09,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:09,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:09,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:23:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:09,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:23:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:09,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:23:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:09,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:23:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:09,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:09,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857647413] [2024-10-11 04:23:09,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857647413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:09,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:09,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:09,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514381470] [2024-10-11 04:23:09,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:09,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:09,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:09,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:09,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:09,891 INFO L87 Difference]: Start difference. First operand 26661 states and 44246 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:23:15,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:15,323 INFO L93 Difference]: Finished difference Result 90474 states and 150842 transitions. [2024-10-11 04:23:15,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:23:15,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:23:15,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:15,565 INFO L225 Difference]: With dead ends: 90474 [2024-10-11 04:23:15,565 INFO L226 Difference]: Without dead ends: 65948 [2024-10-11 04:23:15,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:23:15,648 INFO L432 NwaCegarLoop]: 4235 mSDtfsCounter, 4805 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4825 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:15,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4825 Valid, 20963 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 04:23:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65948 states. [2024-10-11 04:23:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65948 to 51181. [2024-10-11 04:23:19,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51181 states, 46180 states have (on average 1.585036812472932) internal successors, (73197), 46438 states have internal predecessors, (73197), 3207 states have call successors, (3207), 1536 states have call predecessors, (3207), 1792 states have return successors, (10280), 3462 states have call predecessors, (10280), 3207 states have call successors, (10280) [2024-10-11 04:23:19,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51181 states to 51181 states and 86684 transitions. [2024-10-11 04:23:19,736 INFO L78 Accepts]: Start accepts. Automaton has 51181 states and 86684 transitions. Word has length 101 [2024-10-11 04:23:19,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:23:19,736 INFO L471 AbstractCegarLoop]: Abstraction has 51181 states and 86684 transitions. [2024-10-11 04:23:19,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:23:19,737 INFO L276 IsEmpty]: Start isEmpty. Operand 51181 states and 86684 transitions. [2024-10-11 04:23:19,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 04:23:19,783 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:23:19,783 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] [2024-10-11 04:23:19,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 04:23:19,783 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:23:19,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:23:19,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1874054974, now seen corresponding path program 1 times [2024-10-11 04:23:19,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:23:19,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787836739] [2024-10-11 04:23:19,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:23:19,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:23:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:19,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:23:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:19,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 04:23:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:19,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 04:23:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:19,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 04:23:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:19,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 04:23:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:23:19,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:23:19,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:23:19,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787836739] [2024-10-11 04:23:19,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787836739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:23:19,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:23:19,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:23:19,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486269525] [2024-10-11 04:23:19,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:23:19,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:23:19,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:23:19,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:23:19,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:23:19,939 INFO L87 Difference]: Start difference. First operand 51181 states and 86684 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-11 04:23:29,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:23:29,692 INFO L93 Difference]: Finished difference Result 174914 states and 299682 transitions. [2024-10-11 04:23:29,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:23:29,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-10-11 04:23:29,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:23:30,650 INFO L225 Difference]: With dead ends: 174914 [2024-10-11 04:23:30,651 INFO L226 Difference]: Without dead ends: 125868 [2024-10-11 04:23:30,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:23:30,774 INFO L432 NwaCegarLoop]: 4235 mSDtfsCounter, 4756 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4768 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:23:30,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4768 Valid, 20963 Invalid, 2110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 04:23:30,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125868 states.