/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:56:30,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:56:30,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:56:30,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-31 01:56:30,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:56:30,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:56:30,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:56:30,430 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 01:56:30,458 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:56:30,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:56:30,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:56:30,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:56:30,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:56:30,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:56:30,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:56:30,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:56:30,460 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:56:30,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:56:30,460 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:56:30,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:56:30,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:56:30,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:56:30,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:56:30,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:56:30,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:56:30,461 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:56:30,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:56:30,461 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:56:30,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:56:30,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:56:30,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:56:30,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:56:30,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:56:30,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:56:30,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:56:30,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:56:30,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:56:30,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:56:30,462 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:56:30,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:56:30,462 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:56:30,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:56:30,462 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:56:30,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:56:30,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:56:30,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:56:30,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:56:30,699 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:56:30,700 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:56:30,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-03-31 01:56:31,859 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:56:32,278 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:56:32,279 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-03-31 01:56:32,306 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b08fb4a42/747e463cc925416b9bc705a56de76a9a/FLAG5e1cc2775 [2023-03-31 01:56:32,322 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b08fb4a42/747e463cc925416b9bc705a56de76a9a [2023-03-31 01:56:32,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:56:32,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:56:32,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:56:32,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:56:32,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:56:32,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:56:32" (1/1) ... [2023-03-31 01:56:32,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6baa9a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:32, skipping insertion in model container [2023-03-31 01:56:32,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:56:32" (1/1) ... [2023-03-31 01:56:32,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:56:32,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:56:32,834 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13533,13546] [2023-03-31 01:56:32,861 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18033,18046] [2023-03-31 01:56:32,869 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19325,19338] [2023-03-31 01:56:32,883 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20083,20096] [2023-03-31 01:56:32,897 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21703,21716] [2023-03-31 01:56:32,901 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22461,22474] [2023-03-31 01:56:32,907 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23547,23560] [2023-03-31 01:56:32,919 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26086,26099] [2023-03-31 01:56:32,927 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26847,26860] [2023-03-31 01:56:32,933 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27936,27949] [2023-03-31 01:56:32,943 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29941,29954] [2023-03-31 01:56:32,959 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33864,33877] [2023-03-31 01:56:32,964 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34625,34638] [2023-03-31 01:56:32,969 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35718,35731] [2023-03-31 01:56:32,978 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37727,37740] [2023-03-31 01:56:32,995 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41330,41343] [2023-03-31 01:56:33,020 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48207,48220] [2023-03-31 01:56:33,025 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48968,48981] [2023-03-31 01:56:33,030 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[50057,50070] [2023-03-31 01:56:33,039 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52062,52075] [2023-03-31 01:56:33,051 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55451,55464] [2023-03-31 01:56:33,071 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61148,61161] [2023-03-31 01:56:33,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:56:33,413 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:56:33,470 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13533,13546] [2023-03-31 01:56:33,479 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18033,18046] [2023-03-31 01:56:33,483 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19325,19338] [2023-03-31 01:56:33,487 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20083,20096] [2023-03-31 01:56:33,492 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21703,21716] [2023-03-31 01:56:33,495 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22461,22474] [2023-03-31 01:56:33,499 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23547,23560] [2023-03-31 01:56:33,507 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26086,26099] [2023-03-31 01:56:33,510 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26847,26860] [2023-03-31 01:56:33,513 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27936,27949] [2023-03-31 01:56:33,519 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29941,29954] [2023-03-31 01:56:33,529 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33864,33877] [2023-03-31 01:56:33,532 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34625,34638] [2023-03-31 01:56:33,536 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35718,35731] [2023-03-31 01:56:33,541 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37727,37740] [2023-03-31 01:56:33,551 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41330,41343] [2023-03-31 01:56:33,572 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48207,48220] [2023-03-31 01:56:33,575 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48968,48981] [2023-03-31 01:56:33,578 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[50057,50070] [2023-03-31 01:56:33,584 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52062,52075] [2023-03-31 01:56:33,594 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55451,55464] [2023-03-31 01:56:33,607 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61148,61161] [2023-03-31 01:56:33,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:56:33,802 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:56:33,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33 WrapperNode [2023-03-31 01:56:33,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:56:33,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:56:33,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:56:33,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:56:33,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33" (1/1) ... [2023-03-31 01:56:33,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33" (1/1) ... [2023-03-31 01:56:33,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33" (1/1) ... [2023-03-31 01:56:33,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33" (1/1) ... [2023-03-31 01:56:33,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33" (1/1) ... [2023-03-31 01:56:33,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33" (1/1) ... [2023-03-31 01:56:33,962 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33" (1/1) ... [2023-03-31 01:56:33,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33" (1/1) ... [2023-03-31 01:56:34,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:56:34,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:56:34,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:56:34,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:56:34,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33" (1/1) ... [2023-03-31 01:56:34,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:56:34,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:56:34,031 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 01:56:34,051 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 01:56:34,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:56:34,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:56:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:56:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:56:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:56:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:56:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:56:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:56:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:56:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:56:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:56:34,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 01:56:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:56:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:56:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:56:34,074 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:56:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:56:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:56:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:56:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:56:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:56:34,075 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-03-31 01:56:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:56:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:56:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:56:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:56:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:56:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:56:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:56:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:56:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:56:34,432 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:56:34,434 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:56:36,901 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:56:36,920 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:56:36,920 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 01:56:36,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:56:36 BoogieIcfgContainer [2023-03-31 01:56:36,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:56:36,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:56:36,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:56:36,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:56:36,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:56:32" (1/3) ... [2023-03-31 01:56:36,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f4aaf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:56:36, skipping insertion in model container [2023-03-31 01:56:36,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:56:33" (2/3) ... [2023-03-31 01:56:36,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f4aaf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:56:36, skipping insertion in model container [2023-03-31 01:56:36,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:56:36" (3/3) ... [2023-03-31 01:56:36,941 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-03-31 01:56:36,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:56:36,956 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-03-31 01:56:37,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:56:37,037 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;@2136b11b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:56:37,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-03-31 01:56:37,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 1130 states, 1102 states have (on average 1.8593466424682397) internal successors, (2049), 1125 states have internal predecessors, (2049), 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 01:56:37,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-03-31 01:56:37,076 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:56:37,077 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] [2023-03-31 01:56:37,079 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 01:56:37,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:56:37,086 INFO L85 PathProgramCache]: Analyzing trace with hash 237979917, now seen corresponding path program 1 times [2023-03-31 01:56:37,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:56:37,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079987795] [2023-03-31 01:56:37,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:56:37,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:56:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:56:38,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:56:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:56:38,993 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 01:56:38,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:56:38,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079987795] [2023-03-31 01:56:38,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079987795] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:56:38,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:56:38,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:56:38,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254022615] [2023-03-31 01:56:38,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:56:39,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:56:39,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:56:39,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:56:39,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:56:39,040 INFO L87 Difference]: Start difference. First operand has 1130 states, 1102 states have (on average 1.8593466424682397) internal successors, (2049), 1125 states have internal predecessors, (2049), 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 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 01:56:45,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:56:45,615 INFO L93 Difference]: Finished difference Result 1712 states and 3006 transitions. [2023-03-31 01:56:45,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:56:45,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 89 [2023-03-31 01:56:45,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:56:45,631 INFO L225 Difference]: With dead ends: 1712 [2023-03-31 01:56:45,631 INFO L226 Difference]: Without dead ends: 874 [2023-03-31 01:56:45,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:56:45,641 INFO L413 NwaCegarLoop]: 1029 mSDtfsCounter, 4493 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:56:45,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4493 Valid, 1066 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-03-31 01:56:45,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2023-03-31 01:56:45,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 874. [2023-03-31 01:56:45,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 849 states have (on average 1.3180212014134276) internal successors, (1119), 870 states have internal predecessors, (1119), 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 01:56:45,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1122 transitions. [2023-03-31 01:56:45,735 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1122 transitions. Word has length 89 [2023-03-31 01:56:45,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:56:45,735 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1122 transitions. [2023-03-31 01:56:45,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 01:56:45,736 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1122 transitions. [2023-03-31 01:56:45,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-03-31 01:56:45,739 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:56:45,739 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 01:56:45,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:56:45,740 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 01:56:45,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:56:45,741 INFO L85 PathProgramCache]: Analyzing trace with hash 418787100, now seen corresponding path program 1 times [2023-03-31 01:56:45,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:56:45,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972182886] [2023-03-31 01:56:45,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:56:45,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:56:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:56:46,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:56:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:56:46,946 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 01:56:46,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:56:46,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972182886] [2023-03-31 01:56:46,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972182886] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:56:46,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:56:46,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:56:46,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666101294] [2023-03-31 01:56:46,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:56:46,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:56:46,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:56:46,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:56:46,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:56:46,950 INFO L87 Difference]: Start difference. First operand 874 states and 1122 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:56:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:56:51,118 INFO L93 Difference]: Finished difference Result 1442 states and 1907 transitions. [2023-03-31 01:56:51,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:56:51,119 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 01:56:51,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:56:51,122 INFO L225 Difference]: With dead ends: 1442 [2023-03-31 01:56:51,122 INFO L226 Difference]: Without dead ends: 752 [2023-03-31 01:56:51,124 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 01:56:51,125 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 2861 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:56:51,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2861 Valid, 582 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-03-31 01:56:51,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-03-31 01:56:51,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2023-03-31 01:56:51,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 727 states have (on average 1.3480055020632737) internal successors, (980), 748 states have internal predecessors, (980), 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 01:56:51,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 983 transitions. [2023-03-31 01:56:51,171 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 983 transitions. Word has length 90 [2023-03-31 01:56:51,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:56:51,173 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 983 transitions. [2023-03-31 01:56:51,173 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 01:56:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 983 transitions. [2023-03-31 01:56:51,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-03-31 01:56:51,178 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:56:51,178 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 01:56:51,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:56:51,179 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 01:56:51,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:56:51,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1863863253, now seen corresponding path program 1 times [2023-03-31 01:56:51,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:56:51,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439631367] [2023-03-31 01:56:51,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:56:51,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:56:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:56:52,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:56:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:56:52,641 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 01:56:52,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:56:52,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439631367] [2023-03-31 01:56:52,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439631367] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:56:52,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:56:52,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:56:52,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980891504] [2023-03-31 01:56:52,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:56:52,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:56:52,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:56:52,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:56:52,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:56:52,645 INFO L87 Difference]: Start difference. First operand 752 states and 983 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 01:56:56,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:56:56,592 INFO L93 Difference]: Finished difference Result 1320 states and 1767 transitions. [2023-03-31 01:56:56,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:56:56,592 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 01:56:56,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:56:56,595 INFO L225 Difference]: With dead ends: 1320 [2023-03-31 01:56:56,595 INFO L226 Difference]: Without dead ends: 694 [2023-03-31 01:56:56,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:56:56,598 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 2645 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2645 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:56:56,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2645 Valid, 532 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-03-31 01:56:56,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2023-03-31 01:56:56,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2023-03-31 01:56:56,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 669 states have (on average 1.3647234678624813) internal successors, (913), 690 states have internal predecessors, (913), 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 01:56:56,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 916 transitions. [2023-03-31 01:56:56,663 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 916 transitions. Word has length 91 [2023-03-31 01:56:56,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:56:56,663 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 916 transitions. [2023-03-31 01:56:56,664 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 01:56:56,664 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 916 transitions. [2023-03-31 01:56:56,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-03-31 01:56:56,666 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:56:56,666 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 01:56:56,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:56:56,666 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 01:56:56,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:56:56,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1010241722, now seen corresponding path program 1 times [2023-03-31 01:56:56,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:56:56,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738369045] [2023-03-31 01:56:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:56:56,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:56:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:56:57,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:56:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:56:57,859 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 01:56:57,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:56:57,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738369045] [2023-03-31 01:56:57,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738369045] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:56:57,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:56:57,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:56:57,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929399736] [2023-03-31 01:56:57,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:56:57,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:56:57,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:56:57,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:56:57,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:56:57,870 INFO L87 Difference]: Start difference. First operand 694 states and 916 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 01:57:01,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:01,627 INFO L93 Difference]: Finished difference Result 1262 states and 1699 transitions. [2023-03-31 01:57:01,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:57:01,627 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 01:57:01,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:01,631 INFO L225 Difference]: With dead ends: 1262 [2023-03-31 01:57:01,631 INFO L226 Difference]: Without dead ends: 668 [2023-03-31 01:57:01,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:57:01,633 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 2533 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2533 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:01,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2533 Valid, 494 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-03-31 01:57:01,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2023-03-31 01:57:01,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2023-03-31 01:57:01,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 643 states have (on average 1.3716951788491447) internal successors, (882), 664 states have internal predecessors, (882), 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 01:57:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 885 transitions. [2023-03-31 01:57:01,670 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 885 transitions. Word has length 92 [2023-03-31 01:57:01,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:01,670 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 885 transitions. [2023-03-31 01:57:01,671 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 01:57:01,671 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 885 transitions. [2023-03-31 01:57:01,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-03-31 01:57:01,672 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:01,672 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 01:57:01,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:57:01,673 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 01:57:01,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:01,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1867690697, now seen corresponding path program 1 times [2023-03-31 01:57:01,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:01,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417013947] [2023-03-31 01:57:01,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:01,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:02,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:02,698 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 01:57:02,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:02,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417013947] [2023-03-31 01:57:02,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417013947] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:02,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:02,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:57:02,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520508979] [2023-03-31 01:57:02,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:02,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:57:02,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:02,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:57:02,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:57:02,701 INFO L87 Difference]: Start difference. First operand 668 states and 885 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 01:57:06,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:06,072 INFO L93 Difference]: Finished difference Result 1236 states and 1667 transitions. [2023-03-31 01:57:06,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:57:06,073 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 01:57:06,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:06,079 INFO L225 Difference]: With dead ends: 1236 [2023-03-31 01:57:06,082 INFO L226 Difference]: Without dead ends: 658 [2023-03-31 01:57:06,083 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 01:57:06,085 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 2467 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:06,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 434 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-03-31 01:57:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-03-31 01:57:06,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2023-03-31 01:57:06,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 633 states have (on average 1.3728278041074249) internal successors, (869), 654 states have internal predecessors, (869), 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 01:57:06,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 872 transitions. [2023-03-31 01:57:06,125 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 872 transitions. Word has length 93 [2023-03-31 01:57:06,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:06,126 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 872 transitions. [2023-03-31 01:57:06,126 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 01:57:06,126 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 872 transitions. [2023-03-31 01:57:06,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-03-31 01:57:06,128 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:06,128 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 01:57:06,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:57:06,128 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 01:57:06,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:06,129 INFO L85 PathProgramCache]: Analyzing trace with hash -149203144, now seen corresponding path program 1 times [2023-03-31 01:57:06,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:06,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468541054] [2023-03-31 01:57:06,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:06,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:07,145 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 01:57:07,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:07,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468541054] [2023-03-31 01:57:07,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468541054] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:07,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:07,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:57:07,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913271976] [2023-03-31 01:57:07,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:07,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:57:07,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:07,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:57:07,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:57:07,147 INFO L87 Difference]: Start difference. First operand 658 states and 872 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 01:57:10,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:10,803 INFO L93 Difference]: Finished difference Result 1571 states and 2117 transitions. [2023-03-31 01:57:10,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:57:10,803 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 01:57:10,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:10,807 INFO L225 Difference]: With dead ends: 1571 [2023-03-31 01:57:10,807 INFO L226 Difference]: Without dead ends: 983 [2023-03-31 01:57:10,808 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 01:57:10,809 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 3412 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:10,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3412 Valid, 750 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-03-31 01:57:10,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2023-03-31 01:57:10,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 903. [2023-03-31 01:57:10,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 878 states have (on average 1.4168564920273348) internal successors, (1244), 899 states have internal predecessors, (1244), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:57:10,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1247 transitions. [2023-03-31 01:57:10,875 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1247 transitions. Word has length 94 [2023-03-31 01:57:10,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:10,875 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1247 transitions. [2023-03-31 01:57:10,875 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 01:57:10,875 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1247 transitions. [2023-03-31 01:57:10,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-03-31 01:57:10,877 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:10,877 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 01:57:10,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:57:10,877 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 01:57:10,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:10,878 INFO L85 PathProgramCache]: Analyzing trace with hash -319512345, now seen corresponding path program 1 times [2023-03-31 01:57:10,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:10,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93216817] [2023-03-31 01:57:10,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:10,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:12,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:12,437 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 01:57:12,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:12,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93216817] [2023-03-31 01:57:12,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93216817] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:12,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:12,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:57:12,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186779276] [2023-03-31 01:57:12,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:12,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 01:57:12,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:12,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 01:57:12,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-03-31 01:57:12,439 INFO L87 Difference]: Start difference. First operand 903 states and 1247 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 10 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 01:57:16,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:16,928 INFO L93 Difference]: Finished difference Result 1952 states and 2747 transitions. [2023-03-31 01:57:16,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-31 01:57:16,929 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 10 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 01:57:16,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:16,934 INFO L225 Difference]: With dead ends: 1952 [2023-03-31 01:57:16,934 INFO L226 Difference]: Without dead ends: 1710 [2023-03-31 01:57:16,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2023-03-31 01:57:16,936 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 3985 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 3123 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3985 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 3144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:16,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3985 Valid, 2673 Invalid, 3144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3123 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-03-31 01:57:16,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2023-03-31 01:57:17,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 903. [2023-03-31 01:57:17,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 878 states have (on average 1.4145785876993167) internal successors, (1242), 899 states have internal predecessors, (1242), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:57:17,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1245 transitions. [2023-03-31 01:57:17,025 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1245 transitions. Word has length 95 [2023-03-31 01:57:17,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:17,026 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1245 transitions. [2023-03-31 01:57:17,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 10 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 01:57:17,026 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1245 transitions. [2023-03-31 01:57:17,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-03-31 01:57:17,027 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:17,027 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 01:57:17,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:57:17,028 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:17,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:17,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1588286437, now seen corresponding path program 1 times [2023-03-31 01:57:17,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:17,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844989898] [2023-03-31 01:57:17,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:17,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:18,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:18,279 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 01:57:18,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:18,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844989898] [2023-03-31 01:57:18,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844989898] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:18,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:18,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:57:18,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814587971] [2023-03-31 01:57:18,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:18,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:57:18,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:18,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:57:18,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:57:18,283 INFO L87 Difference]: Start difference. First operand 903 states and 1245 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 7 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 01:57:22,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:57:22,010 INFO L93 Difference]: Finished difference Result 1637 states and 2196 transitions. [2023-03-31 01:57:22,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 01:57:22,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 7 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 01:57:22,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:57:22,014 INFO L225 Difference]: With dead ends: 1637 [2023-03-31 01:57:22,015 INFO L226 Difference]: Without dead ends: 1222 [2023-03-31 01:57:22,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:57:22,016 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 2814 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:57:22,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2814 Valid, 1025 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-03-31 01:57:22,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2023-03-31 01:57:22,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 903. [2023-03-31 01:57:22,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 878 states have (on average 1.4134396355353076) internal successors, (1241), 899 states have internal predecessors, (1241), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 01:57:22,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1244 transitions. [2023-03-31 01:57:22,111 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1244 transitions. Word has length 95 [2023-03-31 01:57:22,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:57:22,111 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1244 transitions. [2023-03-31 01:57:22,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 7 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 01:57:22,112 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1244 transitions. [2023-03-31 01:57:22,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-03-31 01:57:22,113 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:57:22,114 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 01:57:22,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:57:22,114 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr21ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-03-31 01:57:22,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:57:22,114 INFO L85 PathProgramCache]: Analyzing trace with hash 925893323, now seen corresponding path program 1 times [2023-03-31 01:57:22,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:57:22,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481902801] [2023-03-31 01:57:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:57:22,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:57:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:23,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:57:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:57:23,397 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 01:57:23,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:57:23,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481902801] [2023-03-31 01:57:23,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481902801] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:57:23,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:57:23,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:57:23,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353624912] [2023-03-31 01:57:23,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:57:23,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:57:23,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:57:23,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:57:23,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:57:23,399 INFO L87 Difference]: Start difference. First operand 903 states and 1244 transitions. Second operand has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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)