/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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:56:51,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:56:51,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:56:51,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-31 01:56:51,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:56:51,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:56:51,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:56:51,515 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 [2023-03-31 01:56:51,539 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:56:51,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:56:51,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:56:51,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:56:51,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:56:51,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:56:51,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:56:51,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:56:51,542 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:56:51,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:56:51,542 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:56:51,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:56:51,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:56:51,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:56:51,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:56:51,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:56:51,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:56:51,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:56:51,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:56:51,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:56:51,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:56:51,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:56:51,545 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:56:51,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:56:51,545 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:56:51,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:56:51,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:56:51,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:56:51,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:56:51,774 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:56:51,775 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:56:51,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-03-31 01:56:52,980 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:56:53,279 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:56:53,279 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-03-31 01:56:53,301 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0836ff4e5/445d5c5b90c9403b97c4a39e1c44369c/FLAG52b1dbe2c [2023-03-31 01:56:53,315 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0836ff4e5/445d5c5b90c9403b97c4a39e1c44369c [2023-03-31 01:56:53,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:56:53,319 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:56:53,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:56:53,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:56:53,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:56:53,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:56:53" (1/1) ... [2023-03-31 01:56:53,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1037b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:53, skipping insertion in model container [2023-03-31 01:56:53,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:56:53" (1/1) ... [2023-03-31 01:56:53,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:56:53,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:56:53,706 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-03-31 01:56:53,747 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-03-31 01:56:53,759 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-03-31 01:56:53,764 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-03-31 01:56:53,787 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-03-31 01:56:53,791 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-03-31 01:56:53,796 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-03-31 01:56:53,806 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-03-31 01:56:53,810 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-03-31 01:56:53,814 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-03-31 01:56:53,821 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-03-31 01:56:53,840 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-03-31 01:56:53,854 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-03-31 01:56:53,864 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-03-31 01:56:53,880 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-03-31 01:56:53,892 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-03-31 01:56:53,913 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-03-31 01:56:53,916 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-03-31 01:56:53,920 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-03-31 01:56:53,926 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-03-31 01:56:53,936 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-03-31 01:56:53,954 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-03-31 01:56:54,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:56:54,242 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:56:54,289 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-03-31 01:56:54,307 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-03-31 01:56:54,311 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-03-31 01:56:54,313 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-03-31 01:56:54,324 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-03-31 01:56:54,326 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-03-31 01:56:54,329 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-03-31 01:56:54,334 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-03-31 01:56:54,337 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-03-31 01:56:54,341 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-03-31 01:56:54,346 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-03-31 01:56:54,353 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-03-31 01:56:54,356 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-03-31 01:56:54,359 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-03-31 01:56:54,363 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-03-31 01:56:54,371 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-03-31 01:56:54,391 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-03-31 01:56:54,393 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-03-31 01:56:54,396 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-03-31 01:56:54,400 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-03-31 01:56:54,409 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-03-31 01:56:54,419 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.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-03-31 01:56:54,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:56:54,572 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:56:54,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54 WrapperNode [2023-03-31 01:56:54,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:56:54,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:56:54,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:56:54,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:56:54,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54" (1/1) ... [2023-03-31 01:56:54,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54" (1/1) ... [2023-03-31 01:56:54,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54" (1/1) ... [2023-03-31 01:56:54,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54" (1/1) ... [2023-03-31 01:56:54,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54" (1/1) ... [2023-03-31 01:56:54,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54" (1/1) ... [2023-03-31 01:56:54,730 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54" (1/1) ... [2023-03-31 01:56:54,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54" (1/1) ... [2023-03-31 01:56:54,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:56:54,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:56:54,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:56:54,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:56:54,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54" (1/1) ... [2023-03-31 01:56:54,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:56:54,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:56:54,782 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) [2023-03-31 01:56:54,793 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 [2023-03-31 01:56:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:56:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:56:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:56:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:56:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:56:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:56:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:56:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:56:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:56:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:56:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:56:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:56:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:56:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:56:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:56:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:56:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:56:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:56:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:56:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:56:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-03-31 01:56:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:56:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:56:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:56:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:56:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:56:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:56:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:56:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:56:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:56:55,040 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:56:55,042 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:56:57,002 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:56:57,011 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:56:57,011 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 01:56:57,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:56:57 BoogieIcfgContainer [2023-03-31 01:56:57,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:56:57,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:56:57,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:56:57,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:56:57,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:56:53" (1/3) ... [2023-03-31 01:56:57,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779018ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:56:57, skipping insertion in model container [2023-03-31 01:56:57,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:54" (2/3) ... [2023-03-31 01:56:57,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779018ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:56:57, skipping insertion in model container [2023-03-31 01:56:57,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:56:57" (3/3) ... [2023-03-31 01:56:57,017 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-03-31 01:56:57,028 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:56:57,028 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-03-31 01:56:57,107 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:56:57,112 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;@43900797, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:56:57,112 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-03-31 01:56:57,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 1137 states, 1109 states have (on average 1.854824165915239) internal successors, (2057), 1132 states have internal predecessors, (2057), 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) [2023-03-31 01:56:57,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-03-31 01:56:57,139 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:56:57,140 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] [2023-03-31 01:56:57,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:56:57,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:56:57,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1890921663, now seen corresponding path program 1 times [2023-03-31 01:56:57,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:56:57,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738176142] [2023-03-31 01:56:57,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:56:57,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:56:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:56:58,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:56:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:56:58,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:56:58,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:56:58,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738176142] [2023-03-31 01:56:58,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738176142] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:56:58,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:56:58,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:56:58,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923099744] [2023-03-31 01:56:58,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:56:58,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:56:58,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:56:58,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:56:58,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:56:58,667 INFO L87 Difference]: Start difference. First operand has 1137 states, 1109 states have (on average 1.854824165915239) internal successors, (2057), 1132 states have internal predecessors, (2057), 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) [2023-03-31 01:57:04,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:04,821 INFO L93 Difference]: Finished difference Result 1725 states and 3020 transitions. [2023-03-31 01:57:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:57:04,823 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 [2023-03-31 01:57:04,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:04,844 INFO L225 Difference]: With dead ends: 1725 [2023-03-31 01:57:04,845 INFO L226 Difference]: Without dead ends: 971 [2023-03-31 01:57:04,853 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 [2023-03-31 01:57:04,861 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 4864 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:04,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4864 Valid, 1097 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-03-31 01:57:04,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-03-31 01:57:04,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 971. [2023-03-31 01:57:04,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 946 states have (on average 1.284355179704017) internal successors, (1215), 967 states have internal predecessors, (1215), 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) [2023-03-31 01:57:04,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1218 transitions. [2023-03-31 01:57:04,959 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1218 transitions. Word has length 90 [2023-03-31 01:57:04,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:04,960 INFO L495 AbstractCegarLoop]: Abstraction has 971 states and 1218 transitions. [2023-03-31 01:57:04,960 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) [2023-03-31 01:57:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1218 transitions. [2023-03-31 01:57:04,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-03-31 01:57:04,965 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:04,965 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] [2023-03-31 01:57:04,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:57:04,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:04,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:04,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1448021312, now seen corresponding path program 1 times [2023-03-31 01:57:04,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:04,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345448394] [2023-03-31 01:57:04,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:04,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:57:06,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:06,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345448394] [2023-03-31 01:57:06,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345448394] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:06,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:06,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:57:06,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790507327] [2023-03-31 01:57:06,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:06,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:57:06,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:06,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:57:06,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:57:06,082 INFO L87 Difference]: Start difference. First operand 971 states and 1218 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) [2023-03-31 01:57:09,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:09,774 INFO L93 Difference]: Finished difference Result 1545 states and 2008 transitions. [2023-03-31 01:57:09,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:57:09,806 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 [2023-03-31 01:57:09,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:09,809 INFO L225 Difference]: With dead ends: 1545 [2023-03-31 01:57:09,809 INFO L226 Difference]: Without dead ends: 801 [2023-03-31 01:57:09,810 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 [2023-03-31 01:57:09,813 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 3017 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3017 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:09,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3017 Valid, 599 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-03-31 01:57:09,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2023-03-31 01:57:09,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2023-03-31 01:57:09,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 776 states have (on average 1.324742268041237) internal successors, (1028), 797 states have internal predecessors, (1028), 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) [2023-03-31 01:57:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1031 transitions. [2023-03-31 01:57:09,842 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1031 transitions. Word has length 91 [2023-03-31 01:57:09,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:09,843 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1031 transitions. [2023-03-31 01:57:09,844 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) [2023-03-31 01:57:09,844 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1031 transitions. [2023-03-31 01:57:09,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-03-31 01:57:09,847 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:09,847 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] [2023-03-31 01:57:09,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:57:09,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:09,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:09,847 INFO L85 PathProgramCache]: Analyzing trace with hash -552886457, now seen corresponding path program 1 times [2023-03-31 01:57:09,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:09,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500015531] [2023-03-31 01:57:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:09,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:57:10,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:10,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500015531] [2023-03-31 01:57:10,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500015531] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:10,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:10,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:57:10,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813171869] [2023-03-31 01:57:10,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:10,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:57:10,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:57:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:57:10,836 INFO L87 Difference]: Start difference. First operand 801 states and 1031 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) [2023-03-31 01:57:14,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:14,336 INFO L93 Difference]: Finished difference Result 1375 states and 1820 transitions. [2023-03-31 01:57:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:57:14,337 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 [2023-03-31 01:57:14,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:14,340 INFO L225 Difference]: With dead ends: 1375 [2023-03-31 01:57:14,340 INFO L226 Difference]: Without dead ends: 719 [2023-03-31 01:57:14,341 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 [2023-03-31 01:57:14,343 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 2731 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:14,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 547 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-03-31 01:57:14,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-03-31 01:57:14,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2023-03-31 01:57:14,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 694 states have (on average 1.3501440922190202) internal successors, (937), 715 states have internal predecessors, (937), 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) [2023-03-31 01:57:14,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 940 transitions. [2023-03-31 01:57:14,371 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 940 transitions. Word has length 92 [2023-03-31 01:57:14,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:14,371 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 940 transitions. [2023-03-31 01:57:14,372 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) [2023-03-31 01:57:14,372 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 940 transitions. [2023-03-31 01:57:14,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-03-31 01:57:14,373 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:14,373 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] [2023-03-31 01:57:14,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:57:14,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:14,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:14,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1962446874, now seen corresponding path program 1 times [2023-03-31 01:57:14,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:14,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748557497] [2023-03-31 01:57:14,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:14,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:57:15,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:15,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748557497] [2023-03-31 01:57:15,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748557497] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:15,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:15,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:57:15,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896531463] [2023-03-31 01:57:15,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:15,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:57:15,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:15,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:57:15,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:57:15,389 INFO L87 Difference]: Start difference. First operand 719 states and 940 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) [2023-03-31 01:57:18,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:18,614 INFO L93 Difference]: Finished difference Result 1293 states and 1728 transitions. [2023-03-31 01:57:18,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:57:18,615 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 [2023-03-31 01:57:18,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:18,617 INFO L225 Difference]: With dead ends: 1293 [2023-03-31 01:57:18,617 INFO L226 Difference]: Without dead ends: 681 [2023-03-31 01:57:18,618 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 [2023-03-31 01:57:18,618 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 2587 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:18,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2587 Valid, 517 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-03-31 01:57:18,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2023-03-31 01:57:18,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 681. [2023-03-31 01:57:18,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 656 states have (on average 1.3628048780487805) internal successors, (894), 677 states have internal predecessors, (894), 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) [2023-03-31 01:57:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 897 transitions. [2023-03-31 01:57:18,643 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 897 transitions. Word has length 93 [2023-03-31 01:57:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:18,644 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 897 transitions. [2023-03-31 01:57:18,644 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) [2023-03-31 01:57:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 897 transitions. [2023-03-31 01:57:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-03-31 01:57:18,645 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:18,645 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] [2023-03-31 01:57:18,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:57:18,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:18,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:18,646 INFO L85 PathProgramCache]: Analyzing trace with hash -665162271, now seen corresponding path program 1 times [2023-03-31 01:57:18,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:18,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671866240] [2023-03-31 01:57:18,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:18,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:57:19,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:19,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671866240] [2023-03-31 01:57:19,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671866240] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:19,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:19,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:57:19,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185360170] [2023-03-31 01:57:19,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:19,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:57:19,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:19,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:57:19,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:57:19,596 INFO L87 Difference]: Start difference. First operand 681 states and 897 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 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) [2023-03-31 01:57:22,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:22,749 INFO L93 Difference]: Finished difference Result 1255 states and 1684 transitions. [2023-03-31 01:57:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:57:22,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 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 [2023-03-31 01:57:22,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:22,752 INFO L225 Difference]: With dead ends: 1255 [2023-03-31 01:57:22,752 INFO L226 Difference]: Without dead ends: 665 [2023-03-31 01:57:22,753 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 [2023-03-31 01:57:22,754 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 2511 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2511 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:22,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2511 Valid, 489 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-03-31 01:57:22,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-03-31 01:57:22,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2023-03-31 01:57:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 640 states have (on average 1.3671875) internal successors, (875), 661 states have internal predecessors, (875), 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) [2023-03-31 01:57:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 878 transitions. [2023-03-31 01:57:22,781 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 878 transitions. Word has length 94 [2023-03-31 01:57:22,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:22,782 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 878 transitions. [2023-03-31 01:57:22,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 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) [2023-03-31 01:57:22,782 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 878 transitions. [2023-03-31 01:57:22,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-03-31 01:57:22,783 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:22,783 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] [2023-03-31 01:57:22,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:57:22,783 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:22,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:22,784 INFO L85 PathProgramCache]: Analyzing trace with hash 971843450, now seen corresponding path program 1 times [2023-03-31 01:57:22,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:22,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398191112] [2023-03-31 01:57:22,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:22,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:23,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:57:23,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:23,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398191112] [2023-03-31 01:57:23,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398191112] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:23,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:23,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:57:23,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681220547] [2023-03-31 01:57:23,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:23,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:57:23,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:23,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:57:23,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:57:23,745 INFO L87 Difference]: Start difference. First operand 665 states and 878 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2023-03-31 01:57:26,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:26,757 INFO L93 Difference]: Finished difference Result 1239 states and 1664 transitions. [2023-03-31 01:57:26,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:57:26,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 95 [2023-03-31 01:57:26,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:26,760 INFO L225 Difference]: With dead ends: 1239 [2023-03-31 01:57:26,760 INFO L226 Difference]: Without dead ends: 645 [2023-03-31 01:57:26,761 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 [2023-03-31 01:57:26,761 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 2503 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:26,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 492 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-03-31 01:57:26,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2023-03-31 01:57:26,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2023-03-31 01:57:26,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3758064516129032) internal successors, (853), 641 states have internal predecessors, (853), 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) [2023-03-31 01:57:26,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 856 transitions. [2023-03-31 01:57:26,790 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 856 transitions. Word has length 95 [2023-03-31 01:57:26,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:26,790 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 856 transitions. [2023-03-31 01:57:26,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2023-03-31 01:57:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 856 transitions. [2023-03-31 01:57:26,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-03-31 01:57:26,791 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:26,791 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] [2023-03-31 01:57:26,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:57:26,792 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:26,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:26,792 INFO L85 PathProgramCache]: Analyzing trace with hash -74601095, now seen corresponding path program 1 times [2023-03-31 01:57:26,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:26,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829209182] [2023-03-31 01:57:26,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:26,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:27,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:57:27,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:27,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829209182] [2023-03-31 01:57:27,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829209182] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:27,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:27,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:57:27,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3958973] [2023-03-31 01:57:27,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:27,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:57:27,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:27,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:57:27,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:57:27,961 INFO L87 Difference]: Start difference. First operand 645 states and 856 transitions. Second operand has 9 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-03-31 01:57:31,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:31,577 INFO L93 Difference]: Finished difference Result 1213 states and 1565 transitions. [2023-03-31 01:57:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 01:57:31,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-03-31 01:57:31,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:31,580 INFO L225 Difference]: With dead ends: 1213 [2023-03-31 01:57:31,580 INFO L226 Difference]: Without dead ends: 867 [2023-03-31 01:57:31,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:57:31,581 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 4935 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4935 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:31,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4935 Valid, 1048 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-03-31 01:57:31,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2023-03-31 01:57:31,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 645. [2023-03-31 01:57:31,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3741935483870968) internal successors, (852), 641 states have internal predecessors, (852), 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) [2023-03-31 01:57:31,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 855 transitions. [2023-03-31 01:57:31,619 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 855 transitions. Word has length 96 [2023-03-31 01:57:31,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:31,620 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 855 transitions. [2023-03-31 01:57:31,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-03-31 01:57:31,620 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 855 transitions. [2023-03-31 01:57:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-03-31 01:57:31,621 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:31,621 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] [2023-03-31 01:57:31,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:57:31,621 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr20ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:31,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:31,622 INFO L85 PathProgramCache]: Analyzing trace with hash -381739919, now seen corresponding path program 1 times [2023-03-31 01:57:31,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:31,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986759883] [2023-03-31 01:57:31,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:31,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:32,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:32,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:57:32,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:32,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986759883] [2023-03-31 01:57:32,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986759883] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:32,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:32,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-03-31 01:57:32,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175327866] [2023-03-31 01:57:32,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:32,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 01:57:32,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:32,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 01:57:32,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:57:32,915 INFO L87 Difference]: Start difference. First operand 645 states and 855 transitions. Second operand has 13 states, 12 states have (on average 7.75) internal successors, (93), 11 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) [2023-03-31 01:57:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:37,306 INFO L93 Difference]: Finished difference Result 1273 states and 1712 transitions. [2023-03-31 01:57:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:57:37,307 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 11 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 [2023-03-31 01:57:37,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:37,310 INFO L225 Difference]: With dead ends: 1273 [2023-03-31 01:57:37,310 INFO L226 Difference]: Without dead ends: 1174 [2023-03-31 01:57:37,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=207, Invalid=605, Unknown=0, NotChecked=0, Total=812 [2023-03-31 01:57:37,311 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 3923 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 3942 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3923 SdHoareTripleChecker+Valid, 3583 SdHoareTripleChecker+Invalid, 3963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:37,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3923 Valid, 3583 Invalid, 3963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3942 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-03-31 01:57:37,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2023-03-31 01:57:37,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 652. [2023-03-31 01:57:37,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 627 states have (on average 1.3748006379585327) internal successors, (862), 648 states have internal predecessors, (862), 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) [2023-03-31 01:57:37,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 865 transitions. [2023-03-31 01:57:37,358 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 865 transitions. Word has length 96 [2023-03-31 01:57:37,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:37,358 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 865 transitions. [2023-03-31 01:57:37,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 11 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) [2023-03-31 01:57:37,359 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 865 transitions. [2023-03-31 01:57:37,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-03-31 01:57:37,360 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:37,360 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] [2023-03-31 01:57:37,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:57:37,360 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr19ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:37,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:37,361 INFO L85 PathProgramCache]: Analyzing trace with hash -892120232, now seen corresponding path program 1 times [2023-03-31 01:57:37,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:37,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2228661] [2023-03-31 01:57:37,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:37,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:38,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:57:38,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:38,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2228661] [2023-03-31 01:57:38,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2228661] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:38,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:38,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:57:38,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972313964] [2023-03-31 01:57:38,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:38,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:57:38,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:38,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:57:38,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:57:38,551 INFO L87 Difference]: Start difference. First operand 652 states and 865 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) [2023-03-31 01:57:43,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:43,583 INFO L93 Difference]: Finished difference Result 1337 states and 1806 transitions. [2023-03-31 01:57:43,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-31 01:57:43,584 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 [2023-03-31 01:57:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:43,596 INFO L225 Difference]: With dead ends: 1337 [2023-03-31 01:57:43,596 INFO L226 Difference]: Without dead ends: 1144 [2023-03-31 01:57:43,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:57:43,598 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 4107 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 3677 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 3694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:43,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4107 Valid, 3011 Invalid, 3694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3677 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-03-31 01:57:43,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2023-03-31 01:57:43,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 645. [2023-03-31 01:57:43,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3725806451612903) internal successors, (851), 641 states have internal predecessors, (851), 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) [2023-03-31 01:57:43,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 854 transitions. [2023-03-31 01:57:43,648 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 854 transitions. Word has length 96 [2023-03-31 01:57:43,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:43,649 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 854 transitions. [2023-03-31 01:57:43,649 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) [2023-03-31 01:57:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 854 transitions. [2023-03-31 01:57:43,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-03-31 01:57:43,650 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:43,650 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] [2023-03-31 01:57:43,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-03-31 01:57:43,650 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr21ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:43,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:43,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1284775265, now seen corresponding path program 1 times [2023-03-31 01:57:43,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:43,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941242874] [2023-03-31 01:57:43,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:43,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:44,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:57:44,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:44,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941242874] [2023-03-31 01:57:44,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941242874] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:44,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:44,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:57:44,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400972480] [2023-03-31 01:57:44,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:44,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:57:44,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:44,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:57:44,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:57:44,779 INFO L87 Difference]: Start difference. First operand 645 states and 854 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) [2023-03-31 01:57:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:48,775 INFO L93 Difference]: Finished difference Result 1231 states and 1655 transitions. [2023-03-31 01:57:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-31 01:57:48,775 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 [2023-03-31 01:57:48,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:48,781 INFO L225 Difference]: With dead ends: 1231 [2023-03-31 01:57:48,781 INFO L226 Difference]: Without dead ends: 1132 [2023-03-31 01:57:48,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-03-31 01:57:48,782 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 3856 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3856 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:48,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3856 Valid, 2262 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-03-31 01:57:48,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-03-31 01:57:48,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 645. [2023-03-31 01:57:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 620 states have (on average 1.3709677419354838) internal successors, (850), 641 states have internal predecessors, (850), 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) [2023-03-31 01:57:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 853 transitions. [2023-03-31 01:57:48,834 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 853 transitions. Word has length 96 [2023-03-31 01:57:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:48,834 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 853 transitions. [2023-03-31 01:57:48,834 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) [2023-03-31 01:57:48,835 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 853 transitions. [2023-03-31 01:57:48,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-03-31 01:57:48,836 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:48,836 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] [2023-03-31 01:57:48,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-03-31 01:57:48,836 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:48,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:48,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1400863290, now seen corresponding path program 1 times [2023-03-31 01:57:48,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:48,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526526669] [2023-03-31 01:57:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:48,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:49,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:57:49,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:49,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526526669] [2023-03-31 01:57:49,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526526669] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:49,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:49,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:57:49,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679939942] [2023-03-31 01:57:49,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:49,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:57:49,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:49,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:57:49,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:57:49,925 INFO L87 Difference]: Start difference. First operand 645 states and 853 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)