/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 06:39:17,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 06:39:17,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 06:39:17,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 06:39:17,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 06:39:17,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 06:39:17,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 06:39:17,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 06:39:17,113 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 06:39:17,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 06:39:17,114 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 06:39:17,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 06:39:17,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 06:39:17,115 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 06:39:17,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 06:39:17,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 06:39:17,116 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 06:39:17,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 06:39:17,117 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 06:39:17,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 06:39:17,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 06:39:17,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 06:39:17,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 06:39:17,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 06:39:17,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 06:39:17,118 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 06:39:17,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 06:39:17,119 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 06:39:17,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 06:39:17,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 06:39:17,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 06:39:17,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 06:39:17,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:39:17,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 06:39:17,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 06:39:17,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 06:39:17,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 06:39:17,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 06:39:17,120 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 06:39:17,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 06:39:17,121 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 06:39:17,121 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 06:39:17,121 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 06:39:17,121 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 06:39:17,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 06:39:17,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 06:39:17,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 06:39:17,379 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 06:39:17,380 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 06:39:17,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:39:18,582 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 06:39:19,019 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 06:39:19,019 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:39:19,061 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b43c8633/f6c314b494ba47d4b058183e2173a219/FLAGfe766195e [2023-04-02 06:39:19,075 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b43c8633/f6c314b494ba47d4b058183e2173a219 [2023-04-02 06:39:19,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 06:39:19,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 06:39:19,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 06:39:19,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 06:39:19,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 06:39:19,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:39:19" (1/1) ... [2023-04-02 06:39:19,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f6a150f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:19, skipping insertion in model container [2023-04-02 06:39:19,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:39:19" (1/1) ... [2023-04-02 06:39:19,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 06:39:19,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 06:39:19,974 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69564,69577] [2023-04-02 06:39:20,113 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101232,101245] [2023-04-02 06:39:20,177 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[117050,117063] [2023-04-02 06:39:20,247 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124955,124968] [2023-04-02 06:39:20,257 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128881,128894] [2023-04-02 06:39:20,270 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132623,132636] [2023-04-02 06:39:20,342 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163781,163794] [2023-04-02 06:39:20,386 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[179384,179397] [2023-04-02 06:39:20,403 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[187284,187297] [2023-04-02 06:39:20,412 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[191205,191218] [2023-04-02 06:39:20,425 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194942,194955] [2023-04-02 06:39:20,461 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211727,211740] [2023-04-02 06:39:20,479 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219627,219640] [2023-04-02 06:39:20,489 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223548,223561] [2023-04-02 06:39:20,497 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[227285,227298] [2023-04-02 06:39:20,507 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231785,231798] [2023-04-02 06:39:20,515 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[235573,235586] [2023-04-02 06:39:20,524 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[239494,239507] [2023-04-02 06:39:20,532 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[243231,243244] [2023-04-02 06:39:20,541 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[247352,247365] [2023-04-02 06:39:20,549 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251105,251118] [2023-04-02 06:39:20,558 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[255022,255035] [2023-04-02 06:39:20,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:39:20,618 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 06:39:20,789 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69564,69577] [2023-04-02 06:39:20,843 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101232,101245] [2023-04-02 06:39:20,874 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[117050,117063] [2023-04-02 06:39:20,889 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124955,124968] [2023-04-02 06:39:20,897 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128881,128894] [2023-04-02 06:39:20,904 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132623,132636] [2023-04-02 06:39:20,957 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163781,163794] [2023-04-02 06:39:20,985 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[179384,179397] [2023-04-02 06:39:20,999 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[187284,187297] [2023-04-02 06:39:21,007 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[191205,191218] [2023-04-02 06:39:21,015 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194942,194955] [2023-04-02 06:39:21,045 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211727,211740] [2023-04-02 06:39:21,059 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219627,219640] [2023-04-02 06:39:21,066 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223548,223561] [2023-04-02 06:39:21,074 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[227285,227298] [2023-04-02 06:39:21,083 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231785,231798] [2023-04-02 06:39:21,091 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[235573,235586] [2023-04-02 06:39:21,099 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[239494,239507] [2023-04-02 06:39:21,107 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[243231,243244] [2023-04-02 06:39:21,115 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[247352,247365] [2023-04-02 06:39:21,123 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251105,251118] [2023-04-02 06:39:21,131 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[255022,255035] [2023-04-02 06:39:21,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:39:21,189 INFO L208 MainTranslator]: Completed translation [2023-04-02 06:39:21,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21 WrapperNode [2023-04-02 06:39:21,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 06:39:21,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 06:39:21,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 06:39:21,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 06:39:21,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21" (1/1) ... [2023-04-02 06:39:21,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21" (1/1) ... [2023-04-02 06:39:21,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21" (1/1) ... [2023-04-02 06:39:21,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21" (1/1) ... [2023-04-02 06:39:21,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21" (1/1) ... [2023-04-02 06:39:21,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21" (1/1) ... [2023-04-02 06:39:21,458 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21" (1/1) ... [2023-04-02 06:39:21,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21" (1/1) ... [2023-04-02 06:39:21,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 06:39:21,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 06:39:21,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 06:39:21,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 06:39:21,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21" (1/1) ... [2023-04-02 06:39:21,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:39:21,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 06:39:21,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 06:39:21,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 06:39:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 06:39:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 06:39:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 06:39:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 06:39:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 06:39:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 06:39:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 06:39:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 06:39:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 06:39:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 06:39:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 06:39:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 06:39:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 06:39:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 06:39:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 06:39:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 06:39:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 06:39:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 06:39:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 06:39:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 06:39:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 06:39:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-04-02 06:39:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 06:39:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 06:39:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 06:39:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 06:39:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 06:39:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 06:39:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 06:39:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 06:39:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 06:39:21,994 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 06:39:21,996 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 06:39:25,863 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 06:39:25,889 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 06:39:25,889 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 06:39:25,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:39:25 BoogieIcfgContainer [2023-04-02 06:39:25,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 06:39:25,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 06:39:25,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 06:39:25,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 06:39:25,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 06:39:19" (1/3) ... [2023-04-02 06:39:25,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e245d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:39:25, skipping insertion in model container [2023-04-02 06:39:25,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:39:21" (2/3) ... [2023-04-02 06:39:25,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e245d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:39:25, skipping insertion in model container [2023-04-02 06:39:25,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:39:25" (3/3) ... [2023-04-02 06:39:25,906 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:39:25,923 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 06:39:25,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-04-02 06:39:26,022 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 06:39:26,028 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6343a4ad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 06:39:26,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-04-02 06:39:26,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 2353 states, 2326 states have (on average 1.8211521926053311) internal successors, (4236), 2348 states have internal predecessors, (4236), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 06:39:26,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 06:39:26,077 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:26,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:26,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:26,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:26,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1264786515, now seen corresponding path program 1 times [2023-04-02 06:39:26,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:26,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686937872] [2023-04-02 06:39:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:26,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:27,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:27,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:27,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686937872] [2023-04-02 06:39:27,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686937872] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:27,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:27,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:39:27,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822832181] [2023-04-02 06:39:27,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:27,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:39:27,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:27,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:39:27,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:39:27,886 INFO L87 Difference]: Start difference. First operand has 2353 states, 2326 states have (on average 1.8211521926053311) internal successors, (4236), 2348 states have internal predecessors, (4236), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:40,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:40,640 INFO L93 Difference]: Finished difference Result 3196 states and 5658 transitions. [2023-04-02 06:39:40,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:39:40,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2023-04-02 06:39:40,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:40,670 INFO L225 Difference]: With dead ends: 3196 [2023-04-02 06:39:40,670 INFO L226 Difference]: Without dead ends: 2093 [2023-04-02 06:39:40,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:39:40,682 INFO L413 NwaCegarLoop]: 1824 mSDtfsCounter, 10824 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 5535 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10824 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 5609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:40,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10824 Valid, 1925 Invalid, 5609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5535 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2023-04-02 06:39:40,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2023-04-02 06:39:40,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 2093. [2023-04-02 06:39:40,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2093 states, 2068 states have (on average 1.3186653771760155) internal successors, (2727), 2089 states have internal predecessors, (2727), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:40,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2730 transitions. [2023-04-02 06:39:40,853 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2730 transitions. Word has length 90 [2023-04-02 06:39:40,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:40,854 INFO L495 AbstractCegarLoop]: Abstraction has 2093 states and 2730 transitions. [2023-04-02 06:39:40,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2730 transitions. [2023-04-02 06:39:40,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 06:39:40,863 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:40,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:40,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 06:39:40,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:40,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:40,865 INFO L85 PathProgramCache]: Analyzing trace with hash -14194633, now seen corresponding path program 1 times [2023-04-02 06:39:40,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:40,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323485775] [2023-04-02 06:39:40,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:40,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:41,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:42,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:42,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323485775] [2023-04-02 06:39:42,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323485775] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:42,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:42,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:39:42,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129217260] [2023-04-02 06:39:42,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:42,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:39:42,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:42,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:39:42,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:39:42,009 INFO L87 Difference]: Start difference. First operand 2093 states and 2730 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:49,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:49,013 INFO L93 Difference]: Finished difference Result 2540 states and 3305 transitions. [2023-04-02 06:39:49,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:39:49,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2023-04-02 06:39:49,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:49,020 INFO L225 Difference]: With dead ends: 2540 [2023-04-02 06:39:49,020 INFO L226 Difference]: Without dead ends: 1497 [2023-04-02 06:39:49,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:39:49,023 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 5819 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5819 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 3109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:49,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5819 Valid, 888 Invalid, 3109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 06:39:49,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2023-04-02 06:39:49,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1497. [2023-04-02 06:39:49,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 1472 states have (on average 1.3383152173913044) internal successors, (1970), 1493 states have internal predecessors, (1970), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:49,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1973 transitions. [2023-04-02 06:39:49,120 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1973 transitions. Word has length 90 [2023-04-02 06:39:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:49,122 INFO L495 AbstractCegarLoop]: Abstraction has 1497 states and 1973 transitions. [2023-04-02 06:39:49,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1973 transitions. [2023-04-02 06:39:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 06:39:49,127 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:49,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:49,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 06:39:49,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:49,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1267173705, now seen corresponding path program 1 times [2023-04-02 06:39:49,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:49,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318092757] [2023-04-02 06:39:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:49,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:50,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:50,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:50,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:50,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318092757] [2023-04-02 06:39:50,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318092757] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:50,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:50,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:39:50,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923541505] [2023-04-02 06:39:50,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:50,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:39:50,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:50,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:39:50,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:39:50,214 INFO L87 Difference]: Start difference. First operand 1497 states and 1973 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:55,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:55,675 INFO L93 Difference]: Finished difference Result 2024 states and 2675 transitions. [2023-04-02 06:39:55,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:39:55,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2023-04-02 06:39:55,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:55,685 INFO L225 Difference]: With dead ends: 2024 [2023-04-02 06:39:55,685 INFO L226 Difference]: Without dead ends: 1257 [2023-04-02 06:39:55,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:39:55,689 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 4947 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4947 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 2601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:55,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4947 Valid, 784 Invalid, 2601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 06:39:55,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2023-04-02 06:39:55,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2023-04-02 06:39:55,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1232 states have (on average 1.3579545454545454) internal successors, (1673), 1253 states have internal predecessors, (1673), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:55,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1676 transitions. [2023-04-02 06:39:55,749 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1676 transitions. Word has length 90 [2023-04-02 06:39:55,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:55,750 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1676 transitions. [2023-04-02 06:39:55,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:39:55,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1676 transitions. [2023-04-02 06:39:55,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-04-02 06:39:55,753 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:55,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:55,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 06:39:55,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:55,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:55,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1664974704, now seen corresponding path program 1 times [2023-04-02 06:39:55,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:55,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144608240] [2023-04-02 06:39:55,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:55,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:56,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:56,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144608240] [2023-04-02 06:39:56,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144608240] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:56,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:56,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:39:56,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797484144] [2023-04-02 06:39:56,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:56,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:39:56,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:56,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:39:56,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:39:56,952 INFO L87 Difference]: Start difference. First operand 1257 states and 1676 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:01,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:01,206 INFO L93 Difference]: Finished difference Result 1576 states and 2073 transitions. [2023-04-02 06:40:01,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:40:01,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2023-04-02 06:40:01,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:01,210 INFO L225 Difference]: With dead ends: 1576 [2023-04-02 06:40:01,211 INFO L226 Difference]: Without dead ends: 951 [2023-04-02 06:40:01,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:40:01,213 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 3696 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3696 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:01,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3696 Valid, 622 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:40:01,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-04-02 06:40:01,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 951. [2023-04-02 06:40:01,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 926 states have (on average 1.367170626349892) internal successors, (1266), 947 states have internal predecessors, (1266), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:01,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1269 transitions. [2023-04-02 06:40:01,277 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1269 transitions. Word has length 91 [2023-04-02 06:40:01,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:01,277 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1269 transitions. [2023-04-02 06:40:01,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:01,277 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1269 transitions. [2023-04-02 06:40:01,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 06:40:01,280 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:01,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:01,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 06:40:01,280 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:01,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:01,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1898886345, now seen corresponding path program 1 times [2023-04-02 06:40:01,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:01,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040047223] [2023-04-02 06:40:01,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:01,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:02,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:02,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:02,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:02,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040047223] [2023-04-02 06:40:02,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040047223] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:02,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:02,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:40:02,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226413476] [2023-04-02 06:40:02,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:02,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:40:02,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:02,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:40:02,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:40:02,444 INFO L87 Difference]: Start difference. First operand 951 states and 1269 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:05,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:05,772 INFO L93 Difference]: Finished difference Result 1140 states and 1487 transitions. [2023-04-02 06:40:05,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:40:05,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2023-04-02 06:40:05,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:05,775 INFO L225 Difference]: With dead ends: 1140 [2023-04-02 06:40:05,776 INFO L226 Difference]: Without dead ends: 673 [2023-04-02 06:40:05,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:40:05,778 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 2554 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:05,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2554 Valid, 490 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 06:40:05,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-04-02 06:40:05,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2023-04-02 06:40:05,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 648 states have (on average 1.3719135802469136) internal successors, (889), 669 states have internal predecessors, (889), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 892 transitions. [2023-04-02 06:40:05,819 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 892 transitions. Word has length 92 [2023-04-02 06:40:05,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:05,820 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 892 transitions. [2023-04-02 06:40:05,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:05,820 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 892 transitions. [2023-04-02 06:40:05,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 06:40:05,822 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:05,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:05,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 06:40:05,822 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:05,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:05,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1961159937, now seen corresponding path program 1 times [2023-04-02 06:40:05,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:05,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356906395] [2023-04-02 06:40:05,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:05,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:06,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:06,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:06,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356906395] [2023-04-02 06:40:06,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356906395] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:06,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:06,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:40:06,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107069506] [2023-04-02 06:40:06,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:06,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:40:06,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:06,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:40:06,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:40:06,876 INFO L87 Difference]: Start difference. First operand 673 states and 892 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:10,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:10,411 INFO L93 Difference]: Finished difference Result 1360 states and 1822 transitions. [2023-04-02 06:40:10,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:40:10,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2023-04-02 06:40:10,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:10,415 INFO L225 Difference]: With dead ends: 1360 [2023-04-02 06:40:10,415 INFO L226 Difference]: Without dead ends: 989 [2023-04-02 06:40:10,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:40:10,417 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 3438 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3438 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:10,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3438 Valid, 755 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-02 06:40:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2023-04-02 06:40:10,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 909. [2023-04-02 06:40:10,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.418552036199095) internal successors, (1254), 905 states have internal predecessors, (1254), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:10,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1257 transitions. [2023-04-02 06:40:10,485 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1257 transitions. Word has length 93 [2023-04-02 06:40:10,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:10,485 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1257 transitions. [2023-04-02 06:40:10,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1257 transitions. [2023-04-02 06:40:10,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 06:40:10,487 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:10,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:10,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 06:40:10,488 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:10,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:10,488 INFO L85 PathProgramCache]: Analyzing trace with hash -596349561, now seen corresponding path program 1 times [2023-04-02 06:40:10,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:10,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028305401] [2023-04-02 06:40:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:10,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:11,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:11,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:11,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:11,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028305401] [2023-04-02 06:40:11,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028305401] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:11,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:11,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:11,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43323664] [2023-04-02 06:40:11,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:11,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:11,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:11,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:11,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:11,971 INFO L87 Difference]: Start difference. First operand 909 states and 1257 transitions. Second operand has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:16,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:16,641 INFO L93 Difference]: Finished difference Result 1926 states and 2726 transitions. [2023-04-02 06:40:16,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:16,642 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2023-04-02 06:40:16,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:16,647 INFO L225 Difference]: With dead ends: 1926 [2023-04-02 06:40:16,647 INFO L226 Difference]: Without dead ends: 1730 [2023-04-02 06:40:16,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:40:16,649 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 5261 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 2761 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5261 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:16,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5261 Valid, 2231 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2761 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:40:16,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2023-04-02 06:40:16,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 909. [2023-04-02 06:40:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.417420814479638) internal successors, (1253), 905 states have internal predecessors, (1253), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:16,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1256 transitions. [2023-04-02 06:40:16,739 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1256 transitions. Word has length 94 [2023-04-02 06:40:16,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:16,740 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1256 transitions. [2023-04-02 06:40:16,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:16,740 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1256 transitions. [2023-04-02 06:40:16,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 06:40:16,742 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:16,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:16,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 06:40:16,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:16,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:16,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1091497805, now seen corresponding path program 1 times [2023-04-02 06:40:16,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:16,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303706144] [2023-04-02 06:40:16,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:16,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:18,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:18,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:18,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:18,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303706144] [2023-04-02 06:40:18,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303706144] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:18,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:18,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:18,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312089933] [2023-04-02 06:40:18,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:18,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:18,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:18,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:18,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:18,195 INFO L87 Difference]: Start difference. First operand 909 states and 1256 transitions. Second operand has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:22,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:22,312 INFO L93 Difference]: Finished difference Result 1747 states and 2442 transitions. [2023-04-02 06:40:22,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:22,313 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2023-04-02 06:40:22,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:22,319 INFO L225 Difference]: With dead ends: 1747 [2023-04-02 06:40:22,319 INFO L226 Difference]: Without dead ends: 1483 [2023-04-02 06:40:22,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:22,321 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 4099 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4099 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:22,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4099 Valid, 2133 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-02 06:40:22,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2023-04-02 06:40:22,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 909. [2023-04-02 06:40:22,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.416289592760181) internal successors, (1252), 905 states have internal predecessors, (1252), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1255 transitions. [2023-04-02 06:40:22,416 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1255 transitions. Word has length 94 [2023-04-02 06:40:22,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:22,417 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1255 transitions. [2023-04-02 06:40:22,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1255 transitions. [2023-04-02 06:40:22,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 06:40:22,419 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:22,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:22,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 06:40:22,419 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:22,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:22,420 INFO L85 PathProgramCache]: Analyzing trace with hash 342013790, now seen corresponding path program 1 times [2023-04-02 06:40:22,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:22,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417310153] [2023-04-02 06:40:22,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:22,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:23,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:23,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:23,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417310153] [2023-04-02 06:40:23,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417310153] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:23,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:23,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 06:40:23,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931899079] [2023-04-02 06:40:23,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:23,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 06:40:23,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:23,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 06:40:23,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-04-02 06:40:23,893 INFO L87 Difference]: Start difference. First operand 909 states and 1255 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:28,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:28,120 INFO L93 Difference]: Finished difference Result 1875 states and 2617 transitions. [2023-04-02 06:40:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 06:40:28,121 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2023-04-02 06:40:28,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:28,125 INFO L225 Difference]: With dead ends: 1875 [2023-04-02 06:40:28,125 INFO L226 Difference]: Without dead ends: 1475 [2023-04-02 06:40:28,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2023-04-02 06:40:28,127 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4715 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 3039 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4715 SdHoareTripleChecker+Valid, 2578 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:28,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4715 Valid, 2578 Invalid, 3059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3039 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:40:28,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2023-04-02 06:40:28,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 909. [2023-04-02 06:40:28,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.414027149321267) internal successors, (1250), 905 states have internal predecessors, (1250), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:28,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1253 transitions. [2023-04-02 06:40:28,230 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1253 transitions. Word has length 94 [2023-04-02 06:40:28,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:28,230 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1253 transitions. [2023-04-02 06:40:28,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:28,231 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1253 transitions. [2023-04-02 06:40:28,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 06:40:28,233 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:28,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:28,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 06:40:28,233 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:28,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:28,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1688521424, now seen corresponding path program 1 times [2023-04-02 06:40:28,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:28,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227708405] [2023-04-02 06:40:28,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:28,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:29,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:29,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:29,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227708405] [2023-04-02 06:40:29,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227708405] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:29,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:29,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 06:40:29,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959476691] [2023-04-02 06:40:29,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:29,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 06:40:29,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:29,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 06:40:29,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:40:29,628 INFO L87 Difference]: Start difference. First operand 909 states and 1253 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:33,238 INFO L93 Difference]: Finished difference Result 1648 states and 2217 transitions. [2023-04-02 06:40:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 06:40:33,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2023-04-02 06:40:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:33,242 INFO L225 Difference]: With dead ends: 1648 [2023-04-02 06:40:33,242 INFO L226 Difference]: Without dead ends: 1230 [2023-04-02 06:40:33,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-04-02 06:40:33,243 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 4875 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4875 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:33,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4875 Valid, 1031 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-02 06:40:33,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2023-04-02 06:40:33,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 909. [2023-04-02 06:40:33,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.41289592760181) internal successors, (1249), 905 states have internal predecessors, (1249), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:33,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1252 transitions. [2023-04-02 06:40:33,354 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1252 transitions. Word has length 94 [2023-04-02 06:40:33,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:33,354 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1252 transitions. [2023-04-02 06:40:33,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:33,355 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1252 transitions. [2023-04-02 06:40:33,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:40:33,356 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:33,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:33,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 06:40:33,357 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:33,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:33,358 INFO L85 PathProgramCache]: Analyzing trace with hash 660049269, now seen corresponding path program 1 times [2023-04-02 06:40:33,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:33,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870472644] [2023-04-02 06:40:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:33,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:34,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:34,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:34,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:34,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870472644] [2023-04-02 06:40:34,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870472644] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:34,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:34,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:34,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335803427] [2023-04-02 06:40:34,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:34,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:34,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:34,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:34,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:34,756 INFO L87 Difference]: Start difference. First operand 909 states and 1252 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:39,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:39,392 INFO L93 Difference]: Finished difference Result 1893 states and 2666 transitions. [2023-04-02 06:40:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:39,393 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:40:39,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:39,399 INFO L225 Difference]: With dead ends: 1893 [2023-04-02 06:40:39,399 INFO L226 Difference]: Without dead ends: 1703 [2023-04-02 06:40:39,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:39,401 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 3271 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 3237 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3271 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 3252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:39,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3271 Valid, 2751 Invalid, 3252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3237 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:40:39,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2023-04-02 06:40:39,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 909. [2023-04-02 06:40:39,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.410633484162896) internal successors, (1247), 905 states have internal predecessors, (1247), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:39,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1250 transitions. [2023-04-02 06:40:39,524 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1250 transitions. Word has length 96 [2023-04-02 06:40:39,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:39,525 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1250 transitions. [2023-04-02 06:40:39,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:39,525 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1250 transitions. [2023-04-02 06:40:39,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:40:39,527 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:39,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:39,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 06:40:39,528 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:39,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:39,528 INFO L85 PathProgramCache]: Analyzing trace with hash -989005971, now seen corresponding path program 1 times [2023-04-02 06:40:39,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:39,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292953437] [2023-04-02 06:40:39,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:39,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:40,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:40,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:40,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:40,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292953437] [2023-04-02 06:40:40,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292953437] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:40,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:40,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:40,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167776931] [2023-04-02 06:40:40,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:40,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:40,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:40,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:40,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:40,892 INFO L87 Difference]: Start difference. First operand 909 states and 1250 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:46,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:46,481 INFO L93 Difference]: Finished difference Result 1974 states and 2782 transitions. [2023-04-02 06:40:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:46,482 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:40:46,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:46,487 INFO L225 Difference]: With dead ends: 1974 [2023-04-02 06:40:46,487 INFO L226 Difference]: Without dead ends: 1730 [2023-04-02 06:40:46,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:40:46,489 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 3852 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 3970 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3852 SdHoareTripleChecker+Valid, 3272 SdHoareTripleChecker+Invalid, 3987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:46,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3852 Valid, 3272 Invalid, 3987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3970 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-02 06:40:46,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2023-04-02 06:40:46,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 909. [2023-04-02 06:40:46,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.408371040723982) internal successors, (1245), 905 states have internal predecessors, (1245), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1248 transitions. [2023-04-02 06:40:46,602 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1248 transitions. Word has length 96 [2023-04-02 06:40:46,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:46,602 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1248 transitions. [2023-04-02 06:40:46,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:46,602 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1248 transitions. [2023-04-02 06:40:46,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:40:46,604 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:46,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:46,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 06:40:46,605 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:46,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:46,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1528622638, now seen corresponding path program 1 times [2023-04-02 06:40:46,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:46,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720273983] [2023-04-02 06:40:46,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:46,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:47,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:47,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:47,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720273983] [2023-04-02 06:40:47,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720273983] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:47,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:47,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:47,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754065856] [2023-04-02 06:40:47,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:47,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:47,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:47,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:47,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:47,875 INFO L87 Difference]: Start difference. First operand 909 states and 1248 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:52,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:52,730 INFO L93 Difference]: Finished difference Result 1874 states and 2635 transitions. [2023-04-02 06:40:52,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:52,731 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:40:52,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:52,735 INFO L225 Difference]: With dead ends: 1874 [2023-04-02 06:40:52,735 INFO L226 Difference]: Without dead ends: 1703 [2023-04-02 06:40:52,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:40:52,736 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 4608 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 3220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4608 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 3238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:52,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4608 Valid, 2600 Invalid, 3238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3220 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:40:52,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2023-04-02 06:40:52,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 909. [2023-04-02 06:40:52,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.407239819004525) internal successors, (1244), 905 states have internal predecessors, (1244), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:52,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1247 transitions. [2023-04-02 06:40:52,873 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1247 transitions. Word has length 96 [2023-04-02 06:40:52,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:52,873 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1247 transitions. [2023-04-02 06:40:52,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:52,873 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1247 transitions. [2023-04-02 06:40:52,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:40:52,875 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:52,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:52,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 06:40:52,875 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:52,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1380406902, now seen corresponding path program 1 times [2023-04-02 06:40:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:52,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582025511] [2023-04-02 06:40:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:52,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:54,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:54,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:54,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:54,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582025511] [2023-04-02 06:40:54,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582025511] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:54,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:54,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:54,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111022067] [2023-04-02 06:40:54,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:54,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:54,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:54,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:54,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:54,066 INFO L87 Difference]: Start difference. First operand 909 states and 1247 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:58,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:58,439 INFO L93 Difference]: Finished difference Result 1837 states and 2573 transitions. [2023-04-02 06:40:58,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:58,439 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:40:58,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:58,444 INFO L225 Difference]: With dead ends: 1837 [2023-04-02 06:40:58,444 INFO L226 Difference]: Without dead ends: 1679 [2023-04-02 06:40:58,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:58,445 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 2841 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2841 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 2999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:58,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2841 Valid, 2382 Invalid, 2999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:40:58,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2023-04-02 06:40:58,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 909. [2023-04-02 06:40:58,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.4061085972850678) internal successors, (1243), 905 states have internal predecessors, (1243), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:58,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1246 transitions. [2023-04-02 06:40:58,579 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1246 transitions. Word has length 96 [2023-04-02 06:40:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:58,580 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1246 transitions. [2023-04-02 06:40:58,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:40:58,580 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1246 transitions. [2023-04-02 06:40:58,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:40:58,581 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:58,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:58,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 06:40:58,582 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:58,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:58,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1207560551, now seen corresponding path program 1 times [2023-04-02 06:40:58,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:58,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431758001] [2023-04-02 06:40:58,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:58,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:59,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:59,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:40:59,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:59,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431758001] [2023-04-02 06:40:59,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431758001] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:59,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:59,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:59,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857852636] [2023-04-02 06:40:59,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:59,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:59,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:59,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:59,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:59,853 INFO L87 Difference]: Start difference. First operand 909 states and 1246 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:05,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:05,377 INFO L93 Difference]: Finished difference Result 1940 states and 2726 transitions. [2023-04-02 06:41:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:05,378 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:41:05,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:05,382 INFO L225 Difference]: With dead ends: 1940 [2023-04-02 06:41:05,382 INFO L226 Difference]: Without dead ends: 1730 [2023-04-02 06:41:05,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:05,383 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 4015 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 3861 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4015 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 3879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:05,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4015 Valid, 3144 Invalid, 3879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3861 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-02 06:41:05,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2023-04-02 06:41:05,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 909. [2023-04-02 06:41:05,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.4049773755656108) internal successors, (1242), 905 states have internal predecessors, (1242), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:05,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1245 transitions. [2023-04-02 06:41:05,503 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1245 transitions. Word has length 96 [2023-04-02 06:41:05,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:05,503 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1245 transitions. [2023-04-02 06:41:05,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:05,503 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1245 transitions. [2023-04-02 06:41:05,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:41:05,505 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:05,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:05,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 06:41:05,506 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:05,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:05,506 INFO L85 PathProgramCache]: Analyzing trace with hash 236943948, now seen corresponding path program 1 times [2023-04-02 06:41:05,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:05,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912584628] [2023-04-02 06:41:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:05,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:06,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:06,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:06,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912584628] [2023-04-02 06:41:06,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912584628] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:06,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:06,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:06,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864268986] [2023-04-02 06:41:06,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:06,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:06,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:06,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:06,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:06,762 INFO L87 Difference]: Start difference. First operand 909 states and 1245 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:12,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:12,009 INFO L93 Difference]: Finished difference Result 1874 states and 2630 transitions. [2023-04-02 06:41:12,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:12,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:41:12,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:12,014 INFO L225 Difference]: With dead ends: 1874 [2023-04-02 06:41:12,014 INFO L226 Difference]: Without dead ends: 1703 [2023-04-02 06:41:12,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:12,015 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 3778 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 3635 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3778 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 3653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:12,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3778 Valid, 2942 Invalid, 3653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3635 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:41:12,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2023-04-02 06:41:12,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 909. [2023-04-02 06:41:12,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.4038461538461537) internal successors, (1241), 905 states have internal predecessors, (1241), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1244 transitions. [2023-04-02 06:41:12,137 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1244 transitions. Word has length 96 [2023-04-02 06:41:12,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:12,137 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1244 transitions. [2023-04-02 06:41:12,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1244 transitions. [2023-04-02 06:41:12,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:41:12,139 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:12,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:12,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 06:41:12,139 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:12,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:12,140 INFO L85 PathProgramCache]: Analyzing trace with hash -334031214, now seen corresponding path program 1 times [2023-04-02 06:41:12,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:12,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238340787] [2023-04-02 06:41:12,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:12,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:13,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:13,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238340787] [2023-04-02 06:41:13,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238340787] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:13,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:13,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:13,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415044401] [2023-04-02 06:41:13,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:13,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:13,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:13,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:13,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:13,274 INFO L87 Difference]: Start difference. First operand 909 states and 1244 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:17,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:17,702 INFO L93 Difference]: Finished difference Result 1833 states and 2566 transitions. [2023-04-02 06:41:17,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:17,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2023-04-02 06:41:17,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:17,707 INFO L225 Difference]: With dead ends: 1833 [2023-04-02 06:41:17,707 INFO L226 Difference]: Without dead ends: 1679 [2023-04-02 06:41:17,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:17,709 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 2428 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2428 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:17,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2428 Valid, 2404 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3056 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:41:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2023-04-02 06:41:17,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 909. [2023-04-02 06:41:17,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.4027149321266967) internal successors, (1240), 905 states have internal predecessors, (1240), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1243 transitions. [2023-04-02 06:41:17,855 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1243 transitions. Word has length 96 [2023-04-02 06:41:17,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:17,855 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1243 transitions. [2023-04-02 06:41:17,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1243 transitions. [2023-04-02 06:41:17,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:41:17,857 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:17,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:17,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 06:41:17,858 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:17,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:17,858 INFO L85 PathProgramCache]: Analyzing trace with hash -969324568, now seen corresponding path program 1 times [2023-04-02 06:41:17,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:17,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998042791] [2023-04-02 06:41:17,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:17,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:19,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:19,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:19,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998042791] [2023-04-02 06:41:19,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998042791] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:19,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:19,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:19,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976463852] [2023-04-02 06:41:19,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:19,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:19,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:19,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:19,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:19,080 INFO L87 Difference]: Start difference. First operand 909 states and 1243 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:23,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:23,667 INFO L93 Difference]: Finished difference Result 1843 states and 2576 transitions. [2023-04-02 06:41:23,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:23,668 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:41:23,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:23,672 INFO L225 Difference]: With dead ends: 1843 [2023-04-02 06:41:23,672 INFO L226 Difference]: Without dead ends: 1679 [2023-04-02 06:41:23,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:41:23,673 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 4652 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 3060 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4652 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 3078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:23,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4652 Valid, 2454 Invalid, 3078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3060 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:41:23,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2023-04-02 06:41:23,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 909. [2023-04-02 06:41:23,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 884 states have (on average 1.4004524886877827) internal successors, (1238), 905 states have internal predecessors, (1238), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:23,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1241 transitions. [2023-04-02 06:41:23,802 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1241 transitions. Word has length 98 [2023-04-02 06:41:23,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:23,803 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1241 transitions. [2023-04-02 06:41:23,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:23,803 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1241 transitions. [2023-04-02 06:41:23,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:41:23,805 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:23,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:23,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 06:41:23,805 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:23,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:23,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2044044075, now seen corresponding path program 1 times [2023-04-02 06:41:23,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:23,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798004861] [2023-04-02 06:41:23,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:23,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:25,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:25,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:25,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:25,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798004861] [2023-04-02 06:41:25,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798004861] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:25,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:25,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:41:25,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533548113] [2023-04-02 06:41:25,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:25,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:41:25,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:25,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:41:25,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:41:25,300 INFO L87 Difference]: Start difference. First operand 909 states and 1241 transitions. Second operand has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:33,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:33,310 INFO L93 Difference]: Finished difference Result 2977 states and 4246 transitions. [2023-04-02 06:41:33,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:41:33,310 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:41:33,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:33,314 INFO L225 Difference]: With dead ends: 2977 [2023-04-02 06:41:33,314 INFO L226 Difference]: Without dead ends: 2787 [2023-04-02 06:41:33,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:41:33,315 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 7842 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 4307 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7842 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 4544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 4307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:33,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7842 Valid, 3506 Invalid, 4544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 4307 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-04-02 06:41:33,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2023-04-02 06:41:33,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 917. [2023-04-02 06:41:33,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 892 states have (on average 1.3968609865470851) internal successors, (1246), 913 states have internal predecessors, (1246), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1249 transitions. [2023-04-02 06:41:33,472 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1249 transitions. Word has length 98 [2023-04-02 06:41:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:33,473 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1249 transitions. [2023-04-02 06:41:33,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1249 transitions. [2023-04-02 06:41:33,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:41:33,475 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:33,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:33,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 06:41:33,475 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:33,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:33,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1423907760, now seen corresponding path program 1 times [2023-04-02 06:41:33,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:33,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043577834] [2023-04-02 06:41:33,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:33,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:34,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:34,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:34,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:34,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043577834] [2023-04-02 06:41:34,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043577834] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:34,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:34,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:34,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935990002] [2023-04-02 06:41:34,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:34,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:34,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:34,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:34,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:34,672 INFO L87 Difference]: Start difference. First operand 917 states and 1249 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:39,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:39,542 INFO L93 Difference]: Finished difference Result 1851 states and 2582 transitions. [2023-04-02 06:41:39,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:39,542 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:41:39,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:39,545 INFO L225 Difference]: With dead ends: 1851 [2023-04-02 06:41:39,545 INFO L226 Difference]: Without dead ends: 1687 [2023-04-02 06:41:39,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:39,546 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 3358 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 3306 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3358 SdHoareTripleChecker+Valid, 2605 SdHoareTripleChecker+Invalid, 3321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:39,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3358 Valid, 2605 Invalid, 3321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3306 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:41:39,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2023-04-02 06:41:39,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 917. [2023-04-02 06:41:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 892 states have (on average 1.3946188340807175) internal successors, (1244), 913 states have internal predecessors, (1244), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:39,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1247 transitions. [2023-04-02 06:41:39,768 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1247 transitions. Word has length 98 [2023-04-02 06:41:39,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:39,768 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1247 transitions. [2023-04-02 06:41:39,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:39,769 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1247 transitions. [2023-04-02 06:41:39,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:41:39,770 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:39,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:39,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 06:41:39,771 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:39,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:39,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1218345743, now seen corresponding path program 1 times [2023-04-02 06:41:39,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:39,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045754938] [2023-04-02 06:41:39,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:39,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:40,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:40,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:40,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045754938] [2023-04-02 06:41:40,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045754938] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:40,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:40,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:40,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091406668] [2023-04-02 06:41:40,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:40,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:40,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:40,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:40,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:40,912 INFO L87 Difference]: Start difference. First operand 917 states and 1247 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:45,513 INFO L93 Difference]: Finished difference Result 1849 states and 2577 transitions. [2023-04-02 06:41:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:45,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:41:45,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:45,516 INFO L225 Difference]: With dead ends: 1849 [2023-04-02 06:41:45,516 INFO L226 Difference]: Without dead ends: 1687 [2023-04-02 06:41:45,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:45,517 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 2358 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 3045 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 3060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:45,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 2456 Invalid, 3060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3045 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:41:45,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2023-04-02 06:41:45,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 917. [2023-04-02 06:41:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 892 states have (on average 1.3923766816143497) internal successors, (1242), 913 states have internal predecessors, (1242), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:45,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1245 transitions. [2023-04-02 06:41:45,721 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1245 transitions. Word has length 98 [2023-04-02 06:41:45,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:45,721 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1245 transitions. [2023-04-02 06:41:45,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:45,722 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1245 transitions. [2023-04-02 06:41:45,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:41:45,723 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:45,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:45,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 06:41:45,724 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:45,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1266351522, now seen corresponding path program 1 times [2023-04-02 06:41:45,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:45,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680809537] [2023-04-02 06:41:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:45,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:46,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:46,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:46,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680809537] [2023-04-02 06:41:46,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680809537] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:46,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:46,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:46,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009865426] [2023-04-02 06:41:46,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:46,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:46,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:46,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:46,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:46,899 INFO L87 Difference]: Start difference. First operand 917 states and 1245 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:51,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:51,544 INFO L93 Difference]: Finished difference Result 1855 states and 2582 transitions. [2023-04-02 06:41:51,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:51,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:41:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:51,547 INFO L225 Difference]: With dead ends: 1855 [2023-04-02 06:41:51,547 INFO L226 Difference]: Without dead ends: 1687 [2023-04-02 06:41:51,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:41:51,549 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 4641 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 3040 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4641 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 3058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:51,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4641 Valid, 2452 Invalid, 3058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3040 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:41:51,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2023-04-02 06:41:51,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 917. [2023-04-02 06:41:51,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 892 states have (on average 1.390134529147982) internal successors, (1240), 913 states have internal predecessors, (1240), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:51,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1243 transitions. [2023-04-02 06:41:51,712 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1243 transitions. Word has length 98 [2023-04-02 06:41:51,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:51,712 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1243 transitions. [2023-04-02 06:41:51,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1243 transitions. [2023-04-02 06:41:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:41:51,714 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:51,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:51,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 06:41:51,714 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:51,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:51,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1971031356, now seen corresponding path program 1 times [2023-04-02 06:41:51,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:51,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217279000] [2023-04-02 06:41:51,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:51,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:52,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:52,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:52,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217279000] [2023-04-02 06:41:52,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217279000] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:52,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:52,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:52,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740573354] [2023-04-02 06:41:52,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:52,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:52,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:52,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:52,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:52,871 INFO L87 Difference]: Start difference. First operand 917 states and 1243 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:57,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:57,833 INFO L93 Difference]: Finished difference Result 1905 states and 2657 transitions. [2023-04-02 06:41:57,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:57,834 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:41:57,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:57,836 INFO L225 Difference]: With dead ends: 1905 [2023-04-02 06:41:57,836 INFO L226 Difference]: Without dead ends: 1703 [2023-04-02 06:41:57,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:41:57,837 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 4446 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 3273 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4446 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 3291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:57,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4446 Valid, 2689 Invalid, 3291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3273 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:41:57,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2023-04-02 06:41:58,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 917. [2023-04-02 06:41:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 892 states have (on average 1.3878923766816142) internal successors, (1238), 913 states have internal predecessors, (1238), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1241 transitions. [2023-04-02 06:41:58,006 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1241 transitions. Word has length 98 [2023-04-02 06:41:58,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:58,006 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1241 transitions. [2023-04-02 06:41:58,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:41:58,006 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1241 transitions. [2023-04-02 06:41:58,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:41:58,007 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:58,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:58,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 06:41:58,007 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:58,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:58,008 INFO L85 PathProgramCache]: Analyzing trace with hash 821074425, now seen corresponding path program 1 times [2023-04-02 06:41:58,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:58,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410019641] [2023-04-02 06:41:58,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:58,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:59,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:59,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:41:59,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:59,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410019641] [2023-04-02 06:41:59,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410019641] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:59,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:59,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:59,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91326978] [2023-04-02 06:41:59,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:59,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:59,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:59,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:59,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:59,161 INFO L87 Difference]: Start difference. First operand 917 states and 1241 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:04,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:04,933 INFO L93 Difference]: Finished difference Result 2014 states and 2805 transitions. [2023-04-02 06:42:04,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:04,934 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:42:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:04,936 INFO L225 Difference]: With dead ends: 2014 [2023-04-02 06:42:04,936 INFO L226 Difference]: Without dead ends: 1738 [2023-04-02 06:42:04,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:04,937 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 2864 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 4087 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2864 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 4104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 4087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:04,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2864 Valid, 3318 Invalid, 4104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 4087 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 06:42:04,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2023-04-02 06:42:05,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 917. [2023-04-02 06:42:05,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 892 states have (on average 1.3856502242152466) internal successors, (1236), 913 states have internal predecessors, (1236), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:05,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1239 transitions. [2023-04-02 06:42:05,106 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1239 transitions. Word has length 98 [2023-04-02 06:42:05,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:05,106 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1239 transitions. [2023-04-02 06:42:05,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:05,106 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1239 transitions. [2023-04-02 06:42:05,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:42:05,107 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:05,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:05,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-02 06:42:05,107 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:05,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:05,108 INFO L85 PathProgramCache]: Analyzing trace with hash 686320770, now seen corresponding path program 1 times [2023-04-02 06:42:05,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:05,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369408543] [2023-04-02 06:42:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:05,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:06,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:06,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:06,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369408543] [2023-04-02 06:42:06,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369408543] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:06,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:06,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:06,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388402485] [2023-04-02 06:42:06,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:06,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:06,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:06,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:06,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:06,287 INFO L87 Difference]: Start difference. First operand 917 states and 1239 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:12,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:12,031 INFO L93 Difference]: Finished difference Result 1883 states and 2620 transitions. [2023-04-02 06:42:12,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:12,032 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:42:12,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:12,035 INFO L225 Difference]: With dead ends: 1883 [2023-04-02 06:42:12,035 INFO L226 Difference]: Without dead ends: 1703 [2023-04-02 06:42:12,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:12,036 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 2901 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 4202 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2901 SdHoareTripleChecker+Valid, 3720 SdHoareTripleChecker+Invalid, 4217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:12,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2901 Valid, 3720 Invalid, 4217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 4202 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 06:42:12,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2023-04-02 06:42:12,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 917. [2023-04-02 06:42:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 892 states have (on average 1.3845291479820627) internal successors, (1235), 913 states have internal predecessors, (1235), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1238 transitions. [2023-04-02 06:42:12,223 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1238 transitions. Word has length 98 [2023-04-02 06:42:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:12,223 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1238 transitions. [2023-04-02 06:42:12,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1238 transitions. [2023-04-02 06:42:12,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:42:12,225 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:12,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:12,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 06:42:12,225 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:12,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:12,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1305685331, now seen corresponding path program 1 times [2023-04-02 06:42:12,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:12,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771932817] [2023-04-02 06:42:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:12,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:13,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:13,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:13,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:13,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771932817] [2023-04-02 06:42:13,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771932817] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:13,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:13,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:42:13,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859356274] [2023-04-02 06:42:13,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:13,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:42:13,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:13,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:42:13,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:42:13,582 INFO L87 Difference]: Start difference. First operand 917 states and 1238 transitions. Second operand has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:21,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:21,476 INFO L93 Difference]: Finished difference Result 2737 states and 3880 transitions. [2023-04-02 06:42:21,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:42:21,477 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:42:21,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:21,482 INFO L225 Difference]: With dead ends: 2737 [2023-04-02 06:42:21,482 INFO L226 Difference]: Without dead ends: 2579 [2023-04-02 06:42:21,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:42:21,484 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 7800 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 3928 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7800 SdHoareTripleChecker+Valid, 3200 SdHoareTripleChecker+Invalid, 4175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 3928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:21,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7800 Valid, 3200 Invalid, 4175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 3928 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-04-02 06:42:21,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2579 states. [2023-04-02 06:42:21,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2579 to 921. [2023-04-02 06:42:21,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 896 states have (on average 1.3828125) internal successors, (1239), 917 states have internal predecessors, (1239), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:21,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1242 transitions. [2023-04-02 06:42:21,809 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1242 transitions. Word has length 98 [2023-04-02 06:42:21,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:21,810 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1242 transitions. [2023-04-02 06:42:21,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1242 transitions. [2023-04-02 06:42:21,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:42:21,811 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:21,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:21,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 06:42:21,812 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:21,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:21,812 INFO L85 PathProgramCache]: Analyzing trace with hash 160651753, now seen corresponding path program 1 times [2023-04-02 06:42:21,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:21,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875624922] [2023-04-02 06:42:21,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:21,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:23,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:23,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:23,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875624922] [2023-04-02 06:42:23,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875624922] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:23,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:23,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:23,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796031677] [2023-04-02 06:42:23,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:23,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:23,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:23,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:23,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:23,016 INFO L87 Difference]: Start difference. First operand 921 states and 1242 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:28,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:28,073 INFO L93 Difference]: Finished difference Result 1841 states and 2556 transitions. [2023-04-02 06:42:28,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:28,074 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:42:28,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:28,077 INFO L225 Difference]: With dead ends: 1841 [2023-04-02 06:42:28,077 INFO L226 Difference]: Without dead ends: 1687 [2023-04-02 06:42:28,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:28,078 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 3335 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 3186 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:28,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 2626 Invalid, 3204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3186 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:42:28,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2023-04-02 06:42:28,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 921. [2023-04-02 06:42:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 896 states have (on average 1.3816964285714286) internal successors, (1238), 917 states have internal predecessors, (1238), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1241 transitions. [2023-04-02 06:42:28,282 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1241 transitions. Word has length 98 [2023-04-02 06:42:28,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:28,282 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1241 transitions. [2023-04-02 06:42:28,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1241 transitions. [2023-04-02 06:42:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:42:28,283 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:28,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:28,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 06:42:28,283 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:28,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:28,284 INFO L85 PathProgramCache]: Analyzing trace with hash 524428487, now seen corresponding path program 1 times [2023-04-02 06:42:28,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:28,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252596456] [2023-04-02 06:42:28,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:28,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:29,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:29,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:29,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252596456] [2023-04-02 06:42:29,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252596456] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:29,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:29,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:29,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343741202] [2023-04-02 06:42:29,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:29,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:29,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:29,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:29,335 INFO L87 Difference]: Start difference. First operand 921 states and 1241 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:34,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:34,681 INFO L93 Difference]: Finished difference Result 1845 states and 2558 transitions. [2023-04-02 06:42:34,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:34,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:42:34,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:34,686 INFO L225 Difference]: With dead ends: 1845 [2023-04-02 06:42:34,686 INFO L226 Difference]: Without dead ends: 1687 [2023-04-02 06:42:34,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:34,687 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 4242 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 3434 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4242 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:34,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4242 Valid, 2781 Invalid, 3452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3434 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 06:42:34,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2023-04-02 06:42:34,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 921. [2023-04-02 06:42:34,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 896 states have (on average 1.3805803571428572) internal successors, (1237), 917 states have internal predecessors, (1237), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:34,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1240 transitions. [2023-04-02 06:42:34,999 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1240 transitions. Word has length 98 [2023-04-02 06:42:35,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:35,001 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1240 transitions. [2023-04-02 06:42:35,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:35,001 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1240 transitions. [2023-04-02 06:42:35,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:42:35,003 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:35,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:35,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 06:42:35,003 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:35,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:35,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1015998081, now seen corresponding path program 1 times [2023-04-02 06:42:35,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:35,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33640329] [2023-04-02 06:42:35,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:35,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:36,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:36,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:36,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33640329] [2023-04-02 06:42:36,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33640329] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:36,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:36,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158369676] [2023-04-02 06:42:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:36,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:36,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:36,080 INFO L87 Difference]: Start difference. First operand 921 states and 1240 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:41,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:41,082 INFO L93 Difference]: Finished difference Result 1841 states and 2553 transitions. [2023-04-02 06:42:41,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:41,083 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:42:41,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:41,085 INFO L225 Difference]: With dead ends: 1841 [2023-04-02 06:42:41,085 INFO L226 Difference]: Without dead ends: 1687 [2023-04-02 06:42:41,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:41,086 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 4346 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 3172 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4346 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:41,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4346 Valid, 2626 Invalid, 3190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3172 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:42:41,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2023-04-02 06:42:41,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 921. [2023-04-02 06:42:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 896 states have (on average 1.3794642857142858) internal successors, (1236), 917 states have internal predecessors, (1236), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1239 transitions. [2023-04-02 06:42:41,348 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1239 transitions. Word has length 98 [2023-04-02 06:42:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:41,348 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1239 transitions. [2023-04-02 06:42:41,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:41,348 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1239 transitions. [2023-04-02 06:42:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:42:41,349 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:41,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:41,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-04-02 06:42:41,350 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:41,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:41,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1092832019, now seen corresponding path program 1 times [2023-04-02 06:42:41,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:41,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788698306] [2023-04-02 06:42:41,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:41,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:42,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:42,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:42,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788698306] [2023-04-02 06:42:42,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788698306] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:42,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:42,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:42,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549075223] [2023-04-02 06:42:42,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:42,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:42,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:42,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:42,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:42,428 INFO L87 Difference]: Start difference. First operand 921 states and 1239 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:47,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:47,760 INFO L93 Difference]: Finished difference Result 1873 states and 2603 transitions. [2023-04-02 06:42:47,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:47,760 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-04-02 06:42:47,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:47,762 INFO L225 Difference]: With dead ends: 1873 [2023-04-02 06:42:47,762 INFO L226 Difference]: Without dead ends: 1707 [2023-04-02 06:42:47,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:42:47,763 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 4160 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 3458 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4160 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 3476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:47,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4160 Valid, 2906 Invalid, 3476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3458 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 06:42:47,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2023-04-02 06:42:47,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 921. [2023-04-02 06:42:47,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 896 states have (on average 1.3783482142857142) internal successors, (1235), 917 states have internal predecessors, (1235), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:47,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1238 transitions. [2023-04-02 06:42:47,992 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1238 transitions. Word has length 98 [2023-04-02 06:42:47,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:47,992 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1238 transitions. [2023-04-02 06:42:47,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:47,992 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1238 transitions. [2023-04-02 06:42:47,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 06:42:47,993 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:47,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:47,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-04-02 06:42:47,994 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:47,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:47,994 INFO L85 PathProgramCache]: Analyzing trace with hash 32225548, now seen corresponding path program 1 times [2023-04-02 06:42:47,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:47,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876625056] [2023-04-02 06:42:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:47,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:49,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:49,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:49,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876625056] [2023-04-02 06:42:49,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876625056] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:49,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:49,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:49,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045685395] [2023-04-02 06:42:49,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:49,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:49,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:49,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:49,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:49,089 INFO L87 Difference]: Start difference. First operand 921 states and 1238 transitions. Second operand has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:54,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:42:54,750 INFO L93 Difference]: Finished difference Result 1897 states and 2630 transitions. [2023-04-02 06:42:54,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:42:54,750 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2023-04-02 06:42:54,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:42:54,752 INFO L225 Difference]: With dead ends: 1897 [2023-04-02 06:42:54,752 INFO L226 Difference]: Without dead ends: 1707 [2023-04-02 06:42:54,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:42:54,753 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 2118 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 3756 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 3772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:42:54,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2118 Valid, 3112 Invalid, 3772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3756 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-02 06:42:54,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2023-04-02 06:42:55,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 913. [2023-04-02 06:42:55,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 888 states have (on average 1.3795045045045045) internal successors, (1225), 909 states have internal predecessors, (1225), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:55,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1228 transitions. [2023-04-02 06:42:55,011 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1228 transitions. Word has length 99 [2023-04-02 06:42:55,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:42:55,011 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1228 transitions. [2023-04-02 06:42:55,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:42:55,011 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1228 transitions. [2023-04-02 06:42:55,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 06:42:55,012 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:42:55,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:42:55,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-04-02 06:42:55,012 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:42:55,013 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:42:55,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1544932783, now seen corresponding path program 1 times [2023-04-02 06:42:55,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:42:55,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378268256] [2023-04-02 06:42:55,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:42:55,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:42:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:56,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:42:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:42:56,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:42:56,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:42:56,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378268256] [2023-04-02 06:42:56,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378268256] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:42:56,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:42:56,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:42:56,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724254746] [2023-04-02 06:42:56,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:42:56,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:42:56,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:42:56,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:42:56,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:42:56,067 INFO L87 Difference]: Start difference. First operand 913 states and 1228 transitions. Second operand has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)