./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad2aa6a134d55c6f9e0680e747fcd11c50dca1f4f191403c757088bda5dc252 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 18:08:54,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 18:08:54,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 18:08:54,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 18:08:54,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 18:08:54,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 18:08:54,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 18:08:54,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 18:08:54,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 18:08:54,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 18:08:54,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 18:08:54,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 18:08:54,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 18:08:54,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 18:08:54,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 18:08:54,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 18:08:54,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 18:08:54,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 18:08:54,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 18:08:54,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 18:08:54,869 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 18:08:54,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 18:08:54,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 18:08:54,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 18:08:54,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 18:08:54,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 18:08:54,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 18:08:54,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 18:08:54,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 18:08:54,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 18:08:54,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 18:08:54,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 18:08:54,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 18:08:54,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 18:08:54,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 18:08:54,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 18:08:54,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 18:08:54,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 18:08:54,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 18:08:54,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 18:08:54,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 18:08:54,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 18:08:54,895 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 18:08:54,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 18:08:54,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 18:08:54,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 18:08:54,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 18:08:54,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 18:08:54,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 18:08:54,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 18:08:54,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 18:08:54,952 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 18:08:54,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 18:08:54,953 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 18:08:54,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 18:08:54,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 18:08:54,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 18:08:54,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 18:08:54,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 18:08:54,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 18:08:54,956 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 18:08:54,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 18:08:54,956 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 18:08:54,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 18:08:54,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 18:08:54,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 18:08:54,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 18:08:54,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:08:54,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 18:08:54,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 18:08:54,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 18:08:54,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 18:08:54,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 18:08:54,972 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 18:08:54,972 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 18:08:54,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 18:08:54,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad2aa6a134d55c6f9e0680e747fcd11c50dca1f4f191403c757088bda5dc252 [2022-07-19 18:08:55,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 18:08:55,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 18:08:55,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 18:08:55,354 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 18:08:55,355 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 18:08:55,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-07-19 18:08:55,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8dc28a7/bd88e1f3218b478bb3acea06c564ea9d/FLAG9dd4fbdbd [2022-07-19 18:08:56,508 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 18:08:56,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-07-19 18:08:56,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8dc28a7/bd88e1f3218b478bb3acea06c564ea9d/FLAG9dd4fbdbd [2022-07-19 18:08:56,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8dc28a7/bd88e1f3218b478bb3acea06c564ea9d [2022-07-19 18:08:56,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 18:08:56,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 18:08:56,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 18:08:56,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 18:08:56,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 18:08:56,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:08:56" (1/1) ... [2022-07-19 18:08:56,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d984d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:08:56, skipping insertion in model container [2022-07-19 18:08:56,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:08:56" (1/1) ... [2022-07-19 18:08:56,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 18:08:57,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 18:08:58,271 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32670,32683] [2022-07-19 18:08:58,323 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39748,39761] [2022-07-19 18:08:58,462 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66949,66962] [2022-07-19 18:08:58,506 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[76032,76045] [2022-07-19 18:08:58,546 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82743,82756] [2022-07-19 18:08:58,594 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94707,94720] [2022-07-19 18:08:58,631 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103680,103693] [2022-07-19 18:08:58,653 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111745,111758] [2022-07-19 18:08:58,767 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[150437,150450] [2022-07-19 18:08:58,804 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153987,154000] [2022-07-19 18:08:58,834 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[163014,163027] [2022-07-19 18:08:58,855 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169687,169700] [2022-07-19 18:08:58,922 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[195501,195514] [2022-07-19 18:08:59,005 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[227497,227510] [2022-07-19 18:08:59,093 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[257825,257838] [2022-07-19 18:08:59,208 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[288277,288290] [2022-07-19 18:08:59,286 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[321714,321727] [2022-07-19 18:08:59,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:08:59,641 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 18:08:59,839 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32670,32683] [2022-07-19 18:08:59,895 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39748,39761] [2022-07-19 18:08:59,990 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66949,66962] [2022-07-19 18:09:00,033 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[76032,76045] [2022-07-19 18:09:00,054 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82743,82756] [2022-07-19 18:09:00,083 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94707,94720] [2022-07-19 18:09:00,094 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103680,103693] [2022-07-19 18:09:00,120 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111745,111758] [2022-07-19 18:09:00,206 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[150437,150450] [2022-07-19 18:09:00,210 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153987,154000] [2022-07-19 18:09:00,219 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[163014,163027] [2022-07-19 18:09:00,242 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169687,169700] [2022-07-19 18:09:00,302 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[195501,195514] [2022-07-19 18:09:00,367 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[227497,227510] [2022-07-19 18:09:00,439 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[257825,257838] [2022-07-19 18:09:00,509 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[288277,288290] [2022-07-19 18:09:00,578 WARN L230 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[321714,321727] [2022-07-19 18:09:00,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:09:00,916 INFO L208 MainTranslator]: Completed translation [2022-07-19 18:09:00,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00 WrapperNode [2022-07-19 18:09:00,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 18:09:00,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 18:09:00,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 18:09:00,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 18:09:00,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (1/1) ... [2022-07-19 18:09:01,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (1/1) ... [2022-07-19 18:09:01,473 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18051 [2022-07-19 18:09:01,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 18:09:01,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 18:09:01,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 18:09:01,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 18:09:01,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (1/1) ... [2022-07-19 18:09:01,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (1/1) ... [2022-07-19 18:09:01,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (1/1) ... [2022-07-19 18:09:01,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (1/1) ... [2022-07-19 18:09:01,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (1/1) ... [2022-07-19 18:09:01,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (1/1) ... [2022-07-19 18:09:01,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (1/1) ... [2022-07-19 18:09:02,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 18:09:02,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 18:09:02,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 18:09:02,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 18:09:02,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (1/1) ... [2022-07-19 18:09:02,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:09:02,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 18:09:02,165 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) [2022-07-19 18:09:02,204 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 [2022-07-19 18:09:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 18:09:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 18:09:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 18:09:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 18:09:03,124 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 18:09:03,138 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 18:09:10,214 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 18:09:10,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 18:09:10,269 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 18:09:10,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:09:10 BoogieIcfgContainer [2022-07-19 18:09:10,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 18:09:10,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 18:09:10,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 18:09:10,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 18:09:10,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 06:08:56" (1/3) ... [2022-07-19 18:09:10,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c15e8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:09:10, skipping insertion in model container [2022-07-19 18:09:10,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:00" (2/3) ... [2022-07-19 18:09:10,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c15e8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:09:10, skipping insertion in model container [2022-07-19 18:09:10,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:09:10" (3/3) ... [2022-07-19 18:09:10,281 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-07-19 18:09:10,291 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 18:09:10,291 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-07-19 18:09:10,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 18:09:10,370 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@43082ecd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d1ff6d7 [2022-07-19 18:09:10,370 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-07-19 18:09:10,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 3732 states, 3714 states have (on average 1.7808292945611202) internal successors, (6614), 3731 states have internal predecessors, (6614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-19 18:09:10,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:10,407 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] [2022-07-19 18:09:10,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:10,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:10,411 INFO L85 PathProgramCache]: Analyzing trace with hash -100733711, now seen corresponding path program 1 times [2022-07-19 18:09:10,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:10,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038233209] [2022-07-19 18:09:10,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:10,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:10,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:10,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038233209] [2022-07-19 18:09:10,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038233209] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:10,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:10,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:09:10,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497878987] [2022-07-19 18:09:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:10,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:09:10,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:10,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:09:10,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:09:10,802 INFO L87 Difference]: Start difference. First operand has 3732 states, 3714 states have (on average 1.7808292945611202) internal successors, (6614), 3731 states have internal predecessors, (6614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:13,960 INFO L93 Difference]: Finished difference Result 7047 states and 12225 transitions. [2022-07-19 18:09:13,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:09:13,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-19 18:09:13,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:13,992 INFO L225 Difference]: With dead ends: 7047 [2022-07-19 18:09:13,992 INFO L226 Difference]: Without dead ends: 4526 [2022-07-19 18:09:14,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:09:14,008 INFO L413 NwaCegarLoop]: 2976 mSDtfsCounter, 20347 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 3550 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20347 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 3550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:14,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20347 Valid, 4292 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 3550 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-19 18:09:14,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2022-07-19 18:09:14,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 4501. [2022-07-19 18:09:14,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4501 states, 4484 states have (on average 1.300178412132025) internal successors, (5830), 4500 states have internal predecessors, (5830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4501 states to 4501 states and 5830 transitions. [2022-07-19 18:09:14,311 INFO L78 Accepts]: Start accepts. Automaton has 4501 states and 5830 transitions. Word has length 65 [2022-07-19 18:09:14,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:14,312 INFO L495 AbstractCegarLoop]: Abstraction has 4501 states and 5830 transitions. [2022-07-19 18:09:14,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:14,313 INFO L276 IsEmpty]: Start isEmpty. Operand 4501 states and 5830 transitions. [2022-07-19 18:09:14,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-19 18:09:14,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:14,322 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] [2022-07-19 18:09:14,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 18:09:14,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:14,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:14,324 INFO L85 PathProgramCache]: Analyzing trace with hash 100373679, now seen corresponding path program 1 times [2022-07-19 18:09:14,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:14,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609725611] [2022-07-19 18:09:14,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:14,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:14,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:14,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:14,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609725611] [2022-07-19 18:09:14,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609725611] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:14,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:14,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:09:14,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146623889] [2022-07-19 18:09:14,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:14,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:09:14,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:14,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:09:14,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:09:14,509 INFO L87 Difference]: Start difference. First operand 4501 states and 5830 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:16,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:16,403 INFO L93 Difference]: Finished difference Result 8465 states and 10989 transitions. [2022-07-19 18:09:16,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:09:16,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-19 18:09:16,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:16,422 INFO L225 Difference]: With dead ends: 8465 [2022-07-19 18:09:16,422 INFO L226 Difference]: Without dead ends: 5686 [2022-07-19 18:09:16,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:09:16,432 INFO L413 NwaCegarLoop]: 1914 mSDtfsCounter, 13225 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13225 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:16,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13225 Valid, 2583 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 18:09:16,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5686 states. [2022-07-19 18:09:16,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5686 to 5656. [2022-07-19 18:09:16,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5656 states, 5639 states have (on average 1.3060826387657387) internal successors, (7365), 5655 states have internal predecessors, (7365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 7365 transitions. [2022-07-19 18:09:16,663 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 7365 transitions. Word has length 66 [2022-07-19 18:09:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:16,665 INFO L495 AbstractCegarLoop]: Abstraction has 5656 states and 7365 transitions. [2022-07-19 18:09:16,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:16,665 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 7365 transitions. [2022-07-19 18:09:16,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-19 18:09:16,671 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:16,671 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] [2022-07-19 18:09:16,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 18:09:16,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:16,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:16,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2043501231, now seen corresponding path program 1 times [2022-07-19 18:09:16,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:16,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479059691] [2022-07-19 18:09:16,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:16,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:16,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:16,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:16,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479059691] [2022-07-19 18:09:16,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479059691] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:16,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:16,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:09:16,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376719465] [2022-07-19 18:09:16,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:16,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:09:16,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:16,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:09:16,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:09:16,793 INFO L87 Difference]: Start difference. First operand 5656 states and 7365 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:18,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:18,545 INFO L93 Difference]: Finished difference Result 11341 states and 14793 transitions. [2022-07-19 18:09:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:09:18,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-19 18:09:18,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:18,566 INFO L225 Difference]: With dead ends: 11341 [2022-07-19 18:09:18,566 INFO L226 Difference]: Without dead ends: 7095 [2022-07-19 18:09:18,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:09:18,576 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 11515 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11515 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:18,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11515 Valid, 2246 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:09:18,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7095 states. [2022-07-19 18:09:18,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7095 to 7075. [2022-07-19 18:09:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7075 states, 7058 states have (on average 1.3085860017001985) internal successors, (9236), 7074 states have internal predecessors, (9236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:18,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7075 states to 7075 states and 9236 transitions. [2022-07-19 18:09:18,999 INFO L78 Accepts]: Start accepts. Automaton has 7075 states and 9236 transitions. Word has length 66 [2022-07-19 18:09:19,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:19,000 INFO L495 AbstractCegarLoop]: Abstraction has 7075 states and 9236 transitions. [2022-07-19 18:09:19,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:19,002 INFO L276 IsEmpty]: Start isEmpty. Operand 7075 states and 9236 transitions. [2022-07-19 18:09:19,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-19 18:09:19,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:19,011 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] [2022-07-19 18:09:19,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 18:09:19,011 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:19,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:19,015 INFO L85 PathProgramCache]: Analyzing trace with hash 280890183, now seen corresponding path program 1 times [2022-07-19 18:09:19,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:19,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836425376] [2022-07-19 18:09:19,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:19,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:19,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:19,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836425376] [2022-07-19 18:09:19,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836425376] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:19,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:19,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:09:19,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398242908] [2022-07-19 18:09:19,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:19,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:09:19,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:19,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:09:19,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:09:19,151 INFO L87 Difference]: Start difference. First operand 7075 states and 9236 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:20,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:20,514 INFO L93 Difference]: Finished difference Result 13797 states and 18189 transitions. [2022-07-19 18:09:20,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:09:20,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-19 18:09:20,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:20,549 INFO L225 Difference]: With dead ends: 13797 [2022-07-19 18:09:20,549 INFO L226 Difference]: Without dead ends: 9215 [2022-07-19 18:09:20,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:09:20,559 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 9693 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9693 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:20,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9693 Valid, 2010 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 18:09:20,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9215 states. [2022-07-19 18:09:20,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9215 to 9175. [2022-07-19 18:09:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9175 states, 9158 states have (on average 1.3226687049574142) internal successors, (12113), 9174 states have internal predecessors, (12113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:20,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9175 states to 9175 states and 12113 transitions. [2022-07-19 18:09:20,916 INFO L78 Accepts]: Start accepts. Automaton has 9175 states and 12113 transitions. Word has length 67 [2022-07-19 18:09:20,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:20,916 INFO L495 AbstractCegarLoop]: Abstraction has 9175 states and 12113 transitions. [2022-07-19 18:09:20,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:20,917 INFO L276 IsEmpty]: Start isEmpty. Operand 9175 states and 12113 transitions. [2022-07-19 18:09:20,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 18:09:20,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:20,922 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] [2022-07-19 18:09:20,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 18:09:20,923 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:20,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:20,923 INFO L85 PathProgramCache]: Analyzing trace with hash 533009189, now seen corresponding path program 1 times [2022-07-19 18:09:20,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:20,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581705522] [2022-07-19 18:09:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:20,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:21,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:21,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581705522] [2022-07-19 18:09:21,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581705522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:21,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:21,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 18:09:21,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837648071] [2022-07-19 18:09:21,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:21,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:09:21,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:21,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:09:21,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:09:21,083 INFO L87 Difference]: Start difference. First operand 9175 states and 12113 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:23,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:23,625 INFO L93 Difference]: Finished difference Result 14418 states and 19726 transitions. [2022-07-19 18:09:23,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 18:09:23,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-19 18:09:23,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:23,648 INFO L225 Difference]: With dead ends: 14418 [2022-07-19 18:09:23,649 INFO L226 Difference]: Without dead ends: 12884 [2022-07-19 18:09:23,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-19 18:09:23,654 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 14033 mSDsluCounter, 3623 mSDsCounter, 0 mSdLazyCounter, 4339 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14033 SdHoareTripleChecker+Valid, 5156 SdHoareTripleChecker+Invalid, 4475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 4339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:23,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14033 Valid, 5156 Invalid, 4475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 4339 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-19 18:09:23,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12884 states. [2022-07-19 18:09:24,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12884 to 9015. [2022-07-19 18:09:24,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9015 states, 8998 states have (on average 1.3220715714603246) internal successors, (11896), 9014 states have internal predecessors, (11896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9015 states to 9015 states and 11896 transitions. [2022-07-19 18:09:24,162 INFO L78 Accepts]: Start accepts. Automaton has 9015 states and 11896 transitions. Word has length 68 [2022-07-19 18:09:24,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:24,163 INFO L495 AbstractCegarLoop]: Abstraction has 9015 states and 11896 transitions. [2022-07-19 18:09:24,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:24,163 INFO L276 IsEmpty]: Start isEmpty. Operand 9015 states and 11896 transitions. [2022-07-19 18:09:24,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 18:09:24,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:24,174 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] [2022-07-19 18:09:24,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 18:09:24,175 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:24,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1802238869, now seen corresponding path program 1 times [2022-07-19 18:09:24,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:24,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307468554] [2022-07-19 18:09:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:24,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:24,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:24,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:24,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307468554] [2022-07-19 18:09:24,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307468554] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:24,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:24,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:09:24,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535626186] [2022-07-19 18:09:24,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:24,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:09:24,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:24,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:09:24,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:09:24,341 INFO L87 Difference]: Start difference. First operand 9015 states and 11896 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:27,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:27,974 INFO L93 Difference]: Finished difference Result 17830 states and 24364 transitions. [2022-07-19 18:09:27,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:09:27,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-19 18:09:27,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:28,003 INFO L225 Difference]: With dead ends: 17830 [2022-07-19 18:09:28,004 INFO L226 Difference]: Without dead ends: 16418 [2022-07-19 18:09:28,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:09:28,011 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 12111 mSDsluCounter, 7029 mSDsCounter, 0 mSdLazyCounter, 8564 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12111 SdHoareTripleChecker+Valid, 8595 SdHoareTripleChecker+Invalid, 8923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 8564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:28,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12111 Valid, 8595 Invalid, 8923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 8564 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-19 18:09:28,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16418 states. [2022-07-19 18:09:28,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16418 to 8953. [2022-07-19 18:09:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8953 states, 8936 states have (on average 1.3217323187108325) internal successors, (11811), 8952 states have internal predecessors, (11811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:28,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8953 states to 8953 states and 11811 transitions. [2022-07-19 18:09:28,545 INFO L78 Accepts]: Start accepts. Automaton has 8953 states and 11811 transitions. Word has length 68 [2022-07-19 18:09:28,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:28,546 INFO L495 AbstractCegarLoop]: Abstraction has 8953 states and 11811 transitions. [2022-07-19 18:09:28,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:28,546 INFO L276 IsEmpty]: Start isEmpty. Operand 8953 states and 11811 transitions. [2022-07-19 18:09:28,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 18:09:28,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:28,552 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] [2022-07-19 18:09:28,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 18:09:28,553 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:28,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:28,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2141707383, now seen corresponding path program 1 times [2022-07-19 18:09:28,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:28,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874352621] [2022-07-19 18:09:28,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:28,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:28,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:28,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874352621] [2022-07-19 18:09:28,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874352621] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:28,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:28,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 18:09:28,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375663968] [2022-07-19 18:09:28,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:28,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:09:28,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:28,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:09:28,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:09:28,852 INFO L87 Difference]: Start difference. First operand 8953 states and 11811 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:32,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:32,495 INFO L93 Difference]: Finished difference Result 20886 states and 29227 transitions. [2022-07-19 18:09:32,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-19 18:09:32,496 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-19 18:09:32,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:32,531 INFO L225 Difference]: With dead ends: 20886 [2022-07-19 18:09:32,531 INFO L226 Difference]: Without dead ends: 20882 [2022-07-19 18:09:32,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2022-07-19 18:09:32,540 INFO L413 NwaCegarLoop]: 2713 mSDtfsCounter, 20699 mSDsluCounter, 19377 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20699 SdHoareTripleChecker+Valid, 22090 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:32,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20699 Valid, 22090 Invalid, 3347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:09:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20882 states. [2022-07-19 18:09:33,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20882 to 8949. [2022-07-19 18:09:33,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 8933 states have (on average 1.3217284227023396) internal successors, (11807), 8948 states have internal predecessors, (11807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:33,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11807 transitions. [2022-07-19 18:09:33,235 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11807 transitions. Word has length 69 [2022-07-19 18:09:33,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:33,235 INFO L495 AbstractCegarLoop]: Abstraction has 8949 states and 11807 transitions. [2022-07-19 18:09:33,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:33,236 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11807 transitions. [2022-07-19 18:09:33,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 18:09:33,241 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:33,241 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] [2022-07-19 18:09:33,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 18:09:33,241 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:33,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:33,242 INFO L85 PathProgramCache]: Analyzing trace with hash -50233035, now seen corresponding path program 1 times [2022-07-19 18:09:33,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:33,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712596833] [2022-07-19 18:09:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:33,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:33,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:33,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:33,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712596833] [2022-07-19 18:09:33,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712596833] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:33,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:33,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:09:33,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550826302] [2022-07-19 18:09:33,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:33,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:09:33,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:33,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:09:33,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:09:33,373 INFO L87 Difference]: Start difference. First operand 8949 states and 11807 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:36,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:36,572 INFO L93 Difference]: Finished difference Result 10536 states and 13952 transitions. [2022-07-19 18:09:36,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:09:36,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-19 18:09:36,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:36,588 INFO L225 Difference]: With dead ends: 10536 [2022-07-19 18:09:36,588 INFO L226 Difference]: Without dead ends: 10530 [2022-07-19 18:09:36,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-19 18:09:36,591 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 13448 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 5080 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13448 SdHoareTripleChecker+Valid, 6225 SdHoareTripleChecker+Invalid, 5332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 5080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:36,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13448 Valid, 6225 Invalid, 5332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 5080 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 18:09:36,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10530 states. [2022-07-19 18:09:37,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10530 to 8949. [2022-07-19 18:09:37,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 8933 states have (on average 1.3216164782267996) internal successors, (11806), 8948 states have internal predecessors, (11806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11806 transitions. [2022-07-19 18:09:37,332 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11806 transitions. Word has length 69 [2022-07-19 18:09:37,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:37,333 INFO L495 AbstractCegarLoop]: Abstraction has 8949 states and 11806 transitions. [2022-07-19 18:09:37,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:37,333 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11806 transitions. [2022-07-19 18:09:37,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 18:09:37,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:37,340 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] [2022-07-19 18:09:37,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 18:09:37,341 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:37,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:37,341 INFO L85 PathProgramCache]: Analyzing trace with hash 487125926, now seen corresponding path program 1 times [2022-07-19 18:09:37,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:37,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028814966] [2022-07-19 18:09:37,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:37,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:37,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:37,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:37,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028814966] [2022-07-19 18:09:37,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028814966] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:37,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:37,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:09:37,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453912211] [2022-07-19 18:09:37,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:37,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:09:37,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:37,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:09:37,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:09:37,466 INFO L87 Difference]: Start difference. First operand 8949 states and 11806 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:40,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:40,256 INFO L93 Difference]: Finished difference Result 11316 states and 14888 transitions. [2022-07-19 18:09:40,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:09:40,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-19 18:09:40,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:40,268 INFO L225 Difference]: With dead ends: 11316 [2022-07-19 18:09:40,268 INFO L226 Difference]: Without dead ends: 11307 [2022-07-19 18:09:40,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-19 18:09:40,285 INFO L413 NwaCegarLoop]: 1437 mSDtfsCounter, 13776 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 5384 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13776 SdHoareTripleChecker+Valid, 6087 SdHoareTripleChecker+Invalid, 5733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 5384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:40,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13776 Valid, 6087 Invalid, 5733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 5384 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-19 18:09:40,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2022-07-19 18:09:40,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 8949. [2022-07-19 18:09:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 8933 states have (on average 1.3215045337512594) internal successors, (11805), 8948 states have internal predecessors, (11805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:40,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11805 transitions. [2022-07-19 18:09:40,940 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11805 transitions. Word has length 69 [2022-07-19 18:09:40,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:40,941 INFO L495 AbstractCegarLoop]: Abstraction has 8949 states and 11805 transitions. [2022-07-19 18:09:40,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11805 transitions. [2022-07-19 18:09:40,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 18:09:40,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:40,947 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] [2022-07-19 18:09:40,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 18:09:40,947 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:40,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:40,948 INFO L85 PathProgramCache]: Analyzing trace with hash -465119641, now seen corresponding path program 1 times [2022-07-19 18:09:40,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:40,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508293512] [2022-07-19 18:09:40,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:40,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:41,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:41,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:41,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508293512] [2022-07-19 18:09:41,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508293512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:41,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:41,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:09:41,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298773381] [2022-07-19 18:09:41,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:41,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 18:09:41,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:41,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 18:09:41,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-19 18:09:41,239 INFO L87 Difference]: Start difference. First operand 8949 states and 11805 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:46,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:46,386 INFO L93 Difference]: Finished difference Result 24532 states and 34391 transitions. [2022-07-19 18:09:46,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:09:46,387 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-19 18:09:46,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:46,415 INFO L225 Difference]: With dead ends: 24532 [2022-07-19 18:09:46,416 INFO L226 Difference]: Without dead ends: 23117 [2022-07-19 18:09:46,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2022-07-19 18:09:46,427 INFO L413 NwaCegarLoop]: 2514 mSDtfsCounter, 19541 mSDsluCounter, 9155 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19541 SdHoareTripleChecker+Valid, 11669 SdHoareTripleChecker+Invalid, 3144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:46,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19541 Valid, 11669 Invalid, 3144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-19 18:09:46,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23117 states. [2022-07-19 18:09:47,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23117 to 8880. [2022-07-19 18:09:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8880 states, 8865 states have (on average 1.321376198533559) internal successors, (11714), 8879 states have internal predecessors, (11714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:47,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8880 states to 8880 states and 11714 transitions. [2022-07-19 18:09:47,464 INFO L78 Accepts]: Start accepts. Automaton has 8880 states and 11714 transitions. Word has length 69 [2022-07-19 18:09:47,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:47,464 INFO L495 AbstractCegarLoop]: Abstraction has 8880 states and 11714 transitions. [2022-07-19 18:09:47,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:47,464 INFO L276 IsEmpty]: Start isEmpty. Operand 8880 states and 11714 transitions. [2022-07-19 18:09:47,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-19 18:09:47,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:47,470 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] [2022-07-19 18:09:47,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 18:09:47,470 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:47,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:47,471 INFO L85 PathProgramCache]: Analyzing trace with hash 215127807, now seen corresponding path program 1 times [2022-07-19 18:09:47,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:47,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200704430] [2022-07-19 18:09:47,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:47,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:47,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:47,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200704430] [2022-07-19 18:09:47,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200704430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:47,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:47,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:09:47,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909430368] [2022-07-19 18:09:47,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:47,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:09:47,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:47,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:09:47,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:09:47,691 INFO L87 Difference]: Start difference. First operand 8880 states and 11714 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:54,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:54,824 INFO L93 Difference]: Finished difference Result 25460 states and 35982 transitions. [2022-07-19 18:09:54,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-19 18:09:54,825 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-19 18:09:54,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:54,857 INFO L225 Difference]: With dead ends: 25460 [2022-07-19 18:09:54,858 INFO L226 Difference]: Without dead ends: 23881 [2022-07-19 18:09:54,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2022-07-19 18:09:54,864 INFO L413 NwaCegarLoop]: 3033 mSDtfsCounter, 14262 mSDsluCounter, 17524 mSDsCounter, 0 mSdLazyCounter, 4527 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14262 SdHoareTripleChecker+Valid, 20557 SdHoareTripleChecker+Invalid, 4903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 4527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:54,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14262 Valid, 20557 Invalid, 4903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 4527 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 18:09:54,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23881 states. [2022-07-19 18:09:56,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23881 to 8647. [2022-07-19 18:09:56,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8647 states, 8633 states have (on average 1.3191242905131473) internal successors, (11388), 8646 states have internal predecessors, (11388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8647 states to 8647 states and 11388 transitions. [2022-07-19 18:09:56,078 INFO L78 Accepts]: Start accepts. Automaton has 8647 states and 11388 transitions. Word has length 70 [2022-07-19 18:09:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:56,078 INFO L495 AbstractCegarLoop]: Abstraction has 8647 states and 11388 transitions. [2022-07-19 18:09:56,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 8647 states and 11388 transitions. [2022-07-19 18:09:56,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-19 18:09:56,085 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:56,086 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] [2022-07-19 18:09:56,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 18:09:56,086 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:56,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:56,087 INFO L85 PathProgramCache]: Analyzing trace with hash 502084112, now seen corresponding path program 1 times [2022-07-19 18:09:56,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:56,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261046701] [2022-07-19 18:09:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:56,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:56,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:56,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:56,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261046701] [2022-07-19 18:09:56,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261046701] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:56,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:56,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:09:56,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610862174] [2022-07-19 18:09:56,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:56,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:09:56,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:56,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:09:56,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:09:56,353 INFO L87 Difference]: Start difference. First operand 8647 states and 11388 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:02,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:02,435 INFO L93 Difference]: Finished difference Result 19804 states and 27582 transitions. [2022-07-19 18:10:02,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-19 18:10:02,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-19 18:10:02,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:02,458 INFO L225 Difference]: With dead ends: 19804 [2022-07-19 18:10:02,458 INFO L226 Difference]: Without dead ends: 19792 [2022-07-19 18:10:02,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-07-19 18:10:02,464 INFO L413 NwaCegarLoop]: 2618 mSDtfsCounter, 16828 mSDsluCounter, 12555 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16828 SdHoareTripleChecker+Valid, 15173 SdHoareTripleChecker+Invalid, 3819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:02,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16828 Valid, 15173 Invalid, 3819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 3354 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-19 18:10:02,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19792 states. [2022-07-19 18:10:03,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19792 to 8640. [2022-07-19 18:10:03,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 8626 states have (on average 1.3192673313239045) internal successors, (11380), 8639 states have internal predecessors, (11380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:03,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 11380 transitions. [2022-07-19 18:10:03,686 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 11380 transitions. Word has length 70 [2022-07-19 18:10:03,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:03,687 INFO L495 AbstractCegarLoop]: Abstraction has 8640 states and 11380 transitions. [2022-07-19 18:10:03,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:03,687 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 11380 transitions. [2022-07-19 18:10:03,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-19 18:10:03,693 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:03,693 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] [2022-07-19 18:10:03,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 18:10:03,694 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:03,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash -683220265, now seen corresponding path program 1 times [2022-07-19 18:10:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:03,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119187033] [2022-07-19 18:10:03,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:03,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:03,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:03,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:03,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119187033] [2022-07-19 18:10:03,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119187033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:03,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:03,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:10:03,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885390688] [2022-07-19 18:10:03,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:03,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:10:03,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:03,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:10:03,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:03,765 INFO L87 Difference]: Start difference. First operand 8640 states and 11380 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:05,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:05,146 INFO L93 Difference]: Finished difference Result 12575 states and 16886 transitions. [2022-07-19 18:10:05,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:10:05,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-19 18:10:05,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:05,159 INFO L225 Difference]: With dead ends: 12575 [2022-07-19 18:10:05,159 INFO L226 Difference]: Without dead ends: 7653 [2022-07-19 18:10:05,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:05,167 INFO L413 NwaCegarLoop]: 1950 mSDtfsCounter, 1923 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:05,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 2623 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:10:05,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7653 states. [2022-07-19 18:10:06,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7653 to 7634. [2022-07-19 18:10:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7634 states, 7624 states have (on average 1.3374868835257083) internal successors, (10197), 7633 states have internal predecessors, (10197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 10197 transitions. [2022-07-19 18:10:06,446 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 10197 transitions. Word has length 70 [2022-07-19 18:10:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:06,446 INFO L495 AbstractCegarLoop]: Abstraction has 7634 states and 10197 transitions. [2022-07-19 18:10:06,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 10197 transitions. [2022-07-19 18:10:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 18:10:06,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:06,450 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] [2022-07-19 18:10:06,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 18:10:06,451 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:06,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:06,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1404122129, now seen corresponding path program 1 times [2022-07-19 18:10:06,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:06,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756122088] [2022-07-19 18:10:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:06,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:06,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:06,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:06,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756122088] [2022-07-19 18:10:06,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756122088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:06,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:06,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:10:06,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60609256] [2022-07-19 18:10:06,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:06,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:10:06,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:06,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:10:06,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:10:06,555 INFO L87 Difference]: Start difference. First operand 7634 states and 10197 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:11,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:11,578 INFO L93 Difference]: Finished difference Result 15150 states and 21099 transitions. [2022-07-19 18:10:11,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:10:11,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-19 18:10:11,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:11,600 INFO L225 Difference]: With dead ends: 15150 [2022-07-19 18:10:11,600 INFO L226 Difference]: Without dead ends: 13142 [2022-07-19 18:10:11,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:10:11,609 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 10890 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 4237 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10890 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 4481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 4237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:11,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10890 Valid, 4831 Invalid, 4481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 4237 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-19 18:10:11,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13142 states. [2022-07-19 18:10:13,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13142 to 7634. [2022-07-19 18:10:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7634 states, 7624 states have (on average 1.3373557187827911) internal successors, (10196), 7633 states have internal predecessors, (10196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:13,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 10196 transitions. [2022-07-19 18:10:13,438 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 10196 transitions. Word has length 71 [2022-07-19 18:10:13,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:13,439 INFO L495 AbstractCegarLoop]: Abstraction has 7634 states and 10196 transitions. [2022-07-19 18:10:13,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:13,439 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 10196 transitions. [2022-07-19 18:10:13,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 18:10:13,446 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:13,446 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] [2022-07-19 18:10:13,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 18:10:13,446 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:13,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:13,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1017361466, now seen corresponding path program 1 times [2022-07-19 18:10:13,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:13,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077330510] [2022-07-19 18:10:13,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:13,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:13,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:13,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:13,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077330510] [2022-07-19 18:10:13,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077330510] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:13,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:13,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:10:13,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64016027] [2022-07-19 18:10:13,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:13,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:10:13,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:13,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:10:13,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:10:13,591 INFO L87 Difference]: Start difference. First operand 7634 states and 10196 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:20,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:20,658 INFO L93 Difference]: Finished difference Result 18792 states and 26289 transitions. [2022-07-19 18:10:20,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:10:20,658 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-19 18:10:20,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:20,676 INFO L225 Difference]: With dead ends: 18792 [2022-07-19 18:10:20,676 INFO L226 Difference]: Without dead ends: 16715 [2022-07-19 18:10:20,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:10:20,682 INFO L413 NwaCegarLoop]: 1217 mSDtfsCounter, 9193 mSDsluCounter, 5489 mSDsCounter, 0 mSdLazyCounter, 6496 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9193 SdHoareTripleChecker+Valid, 6706 SdHoareTripleChecker+Invalid, 6743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 6496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:20,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9193 Valid, 6706 Invalid, 6743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 6496 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-19 18:10:20,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16715 states. [2022-07-19 18:10:22,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16715 to 7634. [2022-07-19 18:10:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7634 states, 7624 states have (on average 1.3372245540398742) internal successors, (10195), 7633 states have internal predecessors, (10195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:22,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 10195 transitions. [2022-07-19 18:10:22,087 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 10195 transitions. Word has length 71 [2022-07-19 18:10:22,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:22,087 INFO L495 AbstractCegarLoop]: Abstraction has 7634 states and 10195 transitions. [2022-07-19 18:10:22,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 10195 transitions. [2022-07-19 18:10:22,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 18:10:22,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:22,092 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] [2022-07-19 18:10:22,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 18:10:22,092 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:22,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:22,093 INFO L85 PathProgramCache]: Analyzing trace with hash 325375151, now seen corresponding path program 1 times [2022-07-19 18:10:22,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:22,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855785674] [2022-07-19 18:10:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:22,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:22,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:22,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:22,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855785674] [2022-07-19 18:10:22,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855785674] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:22,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:22,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 18:10:22,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353002488] [2022-07-19 18:10:22,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:22,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:10:22,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:22,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:10:22,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:10:22,278 INFO L87 Difference]: Start difference. First operand 7634 states and 10195 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:27,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:27,093 INFO L93 Difference]: Finished difference Result 14607 states and 20467 transitions. [2022-07-19 18:10:27,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 18:10:27,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-19 18:10:27,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:27,107 INFO L225 Difference]: With dead ends: 14607 [2022-07-19 18:10:27,107 INFO L226 Difference]: Without dead ends: 12186 [2022-07-19 18:10:27,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-19 18:10:27,113 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 9068 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9068 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 3552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:27,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9068 Valid, 4384 Invalid, 3552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 18:10:27,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12186 states. [2022-07-19 18:10:28,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12186 to 7634. [2022-07-19 18:10:28,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7634 states, 7624 states have (on average 1.337093389296957) internal successors, (10194), 7633 states have internal predecessors, (10194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 10194 transitions. [2022-07-19 18:10:28,646 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 10194 transitions. Word has length 71 [2022-07-19 18:10:28,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:28,646 INFO L495 AbstractCegarLoop]: Abstraction has 7634 states and 10194 transitions. [2022-07-19 18:10:28,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:28,647 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 10194 transitions. [2022-07-19 18:10:28,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 18:10:28,653 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:28,653 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] [2022-07-19 18:10:28,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 18:10:28,654 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:28,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:28,654 INFO L85 PathProgramCache]: Analyzing trace with hash 912295609, now seen corresponding path program 1 times [2022-07-19 18:10:28,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:28,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286956] [2022-07-19 18:10:28,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:28,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:28,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:28,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286956] [2022-07-19 18:10:28,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286956] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:28,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:28,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:10:28,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160353294] [2022-07-19 18:10:28,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:28,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:10:28,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:28,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:10:28,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:28,716 INFO L87 Difference]: Start difference. First operand 7634 states and 10194 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:30,486 INFO L93 Difference]: Finished difference Result 12211 states and 16641 transitions. [2022-07-19 18:10:30,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:10:30,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-19 18:10:30,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:30,496 INFO L225 Difference]: With dead ends: 12211 [2022-07-19 18:10:30,496 INFO L226 Difference]: Without dead ends: 7443 [2022-07-19 18:10:30,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:30,531 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 1522 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:30,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 2011 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:10:30,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7443 states. [2022-07-19 18:10:32,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7443 to 7435. [2022-07-19 18:10:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7435 states, 7428 states have (on average 1.3613354873451804) internal successors, (10112), 7434 states have internal predecessors, (10112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7435 states to 7435 states and 10112 transitions. [2022-07-19 18:10:32,288 INFO L78 Accepts]: Start accepts. Automaton has 7435 states and 10112 transitions. Word has length 71 [2022-07-19 18:10:32,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:32,289 INFO L495 AbstractCegarLoop]: Abstraction has 7435 states and 10112 transitions. [2022-07-19 18:10:32,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand 7435 states and 10112 transitions. [2022-07-19 18:10:32,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-19 18:10:32,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:32,293 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] [2022-07-19 18:10:32,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 18:10:32,293 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:32,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:32,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2097366389, now seen corresponding path program 1 times [2022-07-19 18:10:32,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:32,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033481515] [2022-07-19 18:10:32,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:32,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:32,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:32,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:32,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033481515] [2022-07-19 18:10:32,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033481515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:32,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:32,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:10:32,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721589197] [2022-07-19 18:10:32,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:32,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:10:32,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:32,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:10:32,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:32,341 INFO L87 Difference]: Start difference. First operand 7435 states and 10112 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:35,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:35,283 INFO L93 Difference]: Finished difference Result 15597 states and 21758 transitions. [2022-07-19 18:10:35,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:10:35,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-19 18:10:35,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:35,296 INFO L225 Difference]: With dead ends: 15597 [2022-07-19 18:10:35,296 INFO L226 Difference]: Without dead ends: 11594 [2022-07-19 18:10:35,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:35,301 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 1021 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:35,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 3016 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:10:35,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11594 states. [2022-07-19 18:10:38,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11594 to 11586. [2022-07-19 18:10:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11586 states, 11579 states have (on average 1.3704119526729424) internal successors, (15868), 11585 states have internal predecessors, (15868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:38,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11586 states to 11586 states and 15868 transitions. [2022-07-19 18:10:38,303 INFO L78 Accepts]: Start accepts. Automaton has 11586 states and 15868 transitions. Word has length 72 [2022-07-19 18:10:38,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:38,304 INFO L495 AbstractCegarLoop]: Abstraction has 11586 states and 15868 transitions. [2022-07-19 18:10:38,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:38,304 INFO L276 IsEmpty]: Start isEmpty. Operand 11586 states and 15868 transitions. [2022-07-19 18:10:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-19 18:10:38,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:38,309 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] [2022-07-19 18:10:38,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 18:10:38,309 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:38,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:38,310 INFO L85 PathProgramCache]: Analyzing trace with hash -804939217, now seen corresponding path program 1 times [2022-07-19 18:10:38,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:38,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677105402] [2022-07-19 18:10:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:38,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:38,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677105402] [2022-07-19 18:10:38,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677105402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:38,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:38,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:10:38,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669174509] [2022-07-19 18:10:38,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:38,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:10:38,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:38,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:10:38,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:38,361 INFO L87 Difference]: Start difference. First operand 11586 states and 15868 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:42,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:42,674 INFO L93 Difference]: Finished difference Result 20112 states and 28661 transitions. [2022-07-19 18:10:42,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:10:42,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-19 18:10:42,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:42,690 INFO L225 Difference]: With dead ends: 20112 [2022-07-19 18:10:42,690 INFO L226 Difference]: Without dead ends: 13744 [2022-07-19 18:10:42,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:42,698 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 933 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:42,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 2354 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:10:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13744 states. [2022-07-19 18:10:45,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13744 to 11092. [2022-07-19 18:10:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11092 states, 11085 states have (on average 1.3959404600811909) internal successors, (15474), 11091 states have internal predecessors, (15474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11092 states to 11092 states and 15474 transitions. [2022-07-19 18:10:46,000 INFO L78 Accepts]: Start accepts. Automaton has 11092 states and 15474 transitions. Word has length 72 [2022-07-19 18:10:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:46,001 INFO L495 AbstractCegarLoop]: Abstraction has 11092 states and 15474 transitions. [2022-07-19 18:10:46,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 11092 states and 15474 transitions. [2022-07-19 18:10:46,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-19 18:10:46,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:46,005 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] [2022-07-19 18:10:46,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 18:10:46,006 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:46,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:46,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1735047217, now seen corresponding path program 1 times [2022-07-19 18:10:46,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:46,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830870581] [2022-07-19 18:10:46,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:46,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:46,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:46,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:46,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830870581] [2022-07-19 18:10:46,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830870581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:46,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:46,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:10:46,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720296864] [2022-07-19 18:10:46,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:46,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:10:46,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:46,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:10:46,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:46,087 INFO L87 Difference]: Start difference. First operand 11092 states and 15474 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:51,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:51,953 INFO L93 Difference]: Finished difference Result 26324 states and 37340 transitions. [2022-07-19 18:10:51,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:10:51,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-19 18:10:51,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:51,973 INFO L225 Difference]: With dead ends: 26324 [2022-07-19 18:10:51,974 INFO L226 Difference]: Without dead ends: 18199 [2022-07-19 18:10:51,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:51,984 INFO L413 NwaCegarLoop]: 1788 mSDtfsCounter, 866 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:51,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 3011 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:10:51,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18199 states. [2022-07-19 18:10:57,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18199 to 18191. [2022-07-19 18:10:58,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18191 states, 18184 states have (on average 1.3875934887813461) internal successors, (25232), 18190 states have internal predecessors, (25232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:58,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18191 states to 18191 states and 25232 transitions. [2022-07-19 18:10:58,038 INFO L78 Accepts]: Start accepts. Automaton has 18191 states and 25232 transitions. Word has length 72 [2022-07-19 18:10:58,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:58,038 INFO L495 AbstractCegarLoop]: Abstraction has 18191 states and 25232 transitions. [2022-07-19 18:10:58,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:58,039 INFO L276 IsEmpty]: Start isEmpty. Operand 18191 states and 25232 transitions. [2022-07-19 18:10:58,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-19 18:10:58,044 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:58,044 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] [2022-07-19 18:10:58,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 18:10:58,045 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:58,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:58,045 INFO L85 PathProgramCache]: Analyzing trace with hash -746860976, now seen corresponding path program 1 times [2022-07-19 18:10:58,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:58,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806031292] [2022-07-19 18:10:58,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:58,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:58,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:58,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:58,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806031292] [2022-07-19 18:10:58,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806031292] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:58,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:58,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:10:58,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181398113] [2022-07-19 18:10:58,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:58,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:10:58,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:58,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:10:58,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:58,098 INFO L87 Difference]: Start difference. First operand 18191 states and 25232 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:05,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:11:05,013 INFO L93 Difference]: Finished difference Result 35977 states and 50660 transitions. [2022-07-19 18:11:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:11:05,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-19 18:11:05,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:11:05,037 INFO L225 Difference]: With dead ends: 35977 [2022-07-19 18:11:05,037 INFO L226 Difference]: Without dead ends: 19636 [2022-07-19 18:11:05,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:05,051 INFO L413 NwaCegarLoop]: 1395 mSDtfsCounter, 1118 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:11:05,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 1993 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:11:05,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19636 states. [2022-07-19 18:11:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19636 to 16121. [2022-07-19 18:11:10,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16121 states, 16114 states have (on average 1.4037482934094576) internal successors, (22620), 16120 states have internal predecessors, (22620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:10,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16121 states to 16121 states and 22620 transitions. [2022-07-19 18:11:10,404 INFO L78 Accepts]: Start accepts. Automaton has 16121 states and 22620 transitions. Word has length 73 [2022-07-19 18:11:10,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:11:10,404 INFO L495 AbstractCegarLoop]: Abstraction has 16121 states and 22620 transitions. [2022-07-19 18:11:10,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:10,404 INFO L276 IsEmpty]: Start isEmpty. Operand 16121 states and 22620 transitions. [2022-07-19 18:11:10,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-19 18:11:10,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:11:10,408 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] [2022-07-19 18:11:10,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 18:11:10,409 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:11:10,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:11:10,409 INFO L85 PathProgramCache]: Analyzing trace with hash 202006294, now seen corresponding path program 1 times [2022-07-19 18:11:10,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:11:10,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241482914] [2022-07-19 18:11:10,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:11:10,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:11:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:10,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:10,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:10,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241482914] [2022-07-19 18:11:10,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241482914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:10,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:10,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:11:10,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959084303] [2022-07-19 18:11:10,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:10,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:11:10,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:10,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:11:10,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:11:10,554 INFO L87 Difference]: Start difference. First operand 16121 states and 22620 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:19,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:11:19,734 INFO L93 Difference]: Finished difference Result 21609 states and 30180 transitions. [2022-07-19 18:11:19,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:11:19,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-19 18:11:19,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:11:19,774 INFO L225 Difference]: With dead ends: 21609 [2022-07-19 18:11:19,774 INFO L226 Difference]: Without dead ends: 21196 [2022-07-19 18:11:19,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:11:19,785 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 7507 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7507 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 2981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:11:19,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7507 Valid, 3706 Invalid, 2981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:11:19,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21196 states. [2022-07-19 18:11:25,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21196 to 16116. [2022-07-19 18:11:25,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16116 states, 16109 states have (on average 1.4036253026258614) internal successors, (22611), 16115 states have internal predecessors, (22611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16116 states to 16116 states and 22611 transitions. [2022-07-19 18:11:25,609 INFO L78 Accepts]: Start accepts. Automaton has 16116 states and 22611 transitions. Word has length 73 [2022-07-19 18:11:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:11:25,609 INFO L495 AbstractCegarLoop]: Abstraction has 16116 states and 22611 transitions. [2022-07-19 18:11:25,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 16116 states and 22611 transitions. [2022-07-19 18:11:25,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-19 18:11:25,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:11:25,614 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] [2022-07-19 18:11:25,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-19 18:11:25,616 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:11:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:11:25,616 INFO L85 PathProgramCache]: Analyzing trace with hash 33022288, now seen corresponding path program 1 times [2022-07-19 18:11:25,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:11:25,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999952695] [2022-07-19 18:11:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:11:25,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:11:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:25,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:25,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999952695] [2022-07-19 18:11:25,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999952695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:25,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:25,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:11:25,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984729270] [2022-07-19 18:11:25,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:25,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:11:25,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:25,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:11:25,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:25,739 INFO L87 Difference]: Start difference. First operand 16116 states and 22611 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:32,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:11:32,645 INFO L93 Difference]: Finished difference Result 32713 states and 46577 transitions. [2022-07-19 18:11:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:11:32,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-19 18:11:32,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:11:32,677 INFO L225 Difference]: With dead ends: 32713 [2022-07-19 18:11:32,678 INFO L226 Difference]: Without dead ends: 18038 [2022-07-19 18:11:32,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:32,713 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1315 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:11:32,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1884 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:11:32,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18038 states. [2022-07-19 18:11:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18038 to 14431. [2022-07-19 18:11:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14431 states, 14424 states have (on average 1.4226289517470883) internal successors, (20520), 14430 states have internal predecessors, (20520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:38,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14431 states to 14431 states and 20520 transitions. [2022-07-19 18:11:38,098 INFO L78 Accepts]: Start accepts. Automaton has 14431 states and 20520 transitions. Word has length 73 [2022-07-19 18:11:38,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:11:38,110 INFO L495 AbstractCegarLoop]: Abstraction has 14431 states and 20520 transitions. [2022-07-19 18:11:38,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:38,110 INFO L276 IsEmpty]: Start isEmpty. Operand 14431 states and 20520 transitions. [2022-07-19 18:11:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-19 18:11:38,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:11:38,124 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] [2022-07-19 18:11:38,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-19 18:11:38,125 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:11:38,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:11:38,125 INFO L85 PathProgramCache]: Analyzing trace with hash -361494476, now seen corresponding path program 1 times [2022-07-19 18:11:38,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:11:38,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387599078] [2022-07-19 18:11:38,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:11:38,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:11:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:38,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:38,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:38,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387599078] [2022-07-19 18:11:38,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387599078] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:38,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:38,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:11:38,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663029882] [2022-07-19 18:11:38,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:38,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:11:38,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:38,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:11:38,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:11:38,340 INFO L87 Difference]: Start difference. First operand 14431 states and 20520 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:11:50,807 INFO L93 Difference]: Finished difference Result 26224 states and 37178 transitions. [2022-07-19 18:11:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 18:11:50,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-19 18:11:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:11:50,849 INFO L225 Difference]: With dead ends: 26224 [2022-07-19 18:11:50,849 INFO L226 Difference]: Without dead ends: 25648 [2022-07-19 18:11:50,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-07-19 18:11:50,860 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 3478 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 3274 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3478 SdHoareTripleChecker+Valid, 3735 SdHoareTripleChecker+Invalid, 3387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 3274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:11:50,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3478 Valid, 3735 Invalid, 3387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 3274 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:11:50,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25648 states. [2022-07-19 18:11:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25648 to 14431. [2022-07-19 18:11:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14431 states, 14424 states have (on average 1.4224902939545203) internal successors, (20518), 14430 states have internal predecessors, (20518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14431 states to 14431 states and 20518 transitions. [2022-07-19 18:11:56,521 INFO L78 Accepts]: Start accepts. Automaton has 14431 states and 20518 transitions. Word has length 74 [2022-07-19 18:11:56,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:11:56,521 INFO L495 AbstractCegarLoop]: Abstraction has 14431 states and 20518 transitions. [2022-07-19 18:11:56,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:56,521 INFO L276 IsEmpty]: Start isEmpty. Operand 14431 states and 20518 transitions. [2022-07-19 18:11:56,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-19 18:11:56,539 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:11:56,539 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] [2022-07-19 18:11:56,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-19 18:11:56,540 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:11:56,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:11:56,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1074090996, now seen corresponding path program 1 times [2022-07-19 18:11:56,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:11:56,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768526167] [2022-07-19 18:11:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:11:56,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:11:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:56,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:56,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768526167] [2022-07-19 18:11:56,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768526167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:56,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:56,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:11:56,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289278036] [2022-07-19 18:11:56,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:56,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:11:56,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:56,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:11:56,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:11:56,727 INFO L87 Difference]: Start difference. First operand 14431 states and 20518 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:05,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:12:05,753 INFO L93 Difference]: Finished difference Result 19451 states and 27512 transitions. [2022-07-19 18:12:05,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:12:05,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-19 18:12:05,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:12:05,787 INFO L225 Difference]: With dead ends: 19451 [2022-07-19 18:12:05,788 INFO L226 Difference]: Without dead ends: 19033 [2022-07-19 18:12:05,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:12:05,796 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 7139 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7139 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 2867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:12:05,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7139 Valid, 3574 Invalid, 2867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:12:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19033 states. [2022-07-19 18:12:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19033 to 14431. [2022-07-19 18:12:11,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14431 states, 14424 states have (on average 1.4223516361619524) internal successors, (20516), 14430 states have internal predecessors, (20516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:11,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14431 states to 14431 states and 20516 transitions. [2022-07-19 18:12:11,240 INFO L78 Accepts]: Start accepts. Automaton has 14431 states and 20516 transitions. Word has length 74 [2022-07-19 18:12:11,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:12:11,240 INFO L495 AbstractCegarLoop]: Abstraction has 14431 states and 20516 transitions. [2022-07-19 18:12:11,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:11,241 INFO L276 IsEmpty]: Start isEmpty. Operand 14431 states and 20516 transitions. [2022-07-19 18:12:11,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-19 18:12:11,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:12:11,243 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] [2022-07-19 18:12:11,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-19 18:12:11,244 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:12:11,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:12:11,244 INFO L85 PathProgramCache]: Analyzing trace with hash -281417774, now seen corresponding path program 1 times [2022-07-19 18:12:11,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:12:11,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565681396] [2022-07-19 18:12:11,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:12:11,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:12:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:12:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:12:11,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:12:11,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565681396] [2022-07-19 18:12:11,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565681396] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:12:11,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:12:11,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:12:11,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33050003] [2022-07-19 18:12:11,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:12:11,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:12:11,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:12:11,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:12:11,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:12:11,426 INFO L87 Difference]: Start difference. First operand 14431 states and 20516 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:20,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:12:20,452 INFO L93 Difference]: Finished difference Result 19630 states and 27704 transitions. [2022-07-19 18:12:20,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:12:20,453 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-19 18:12:20,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:12:20,482 INFO L225 Difference]: With dead ends: 19630 [2022-07-19 18:12:20,482 INFO L226 Difference]: Without dead ends: 19168 [2022-07-19 18:12:20,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:12:20,490 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 6836 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 2949 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6836 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:12:20,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6836 Valid, 3779 Invalid, 3110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2949 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:12:20,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19168 states. [2022-07-19 18:12:25,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19168 to 14431. [2022-07-19 18:12:26,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14431 states, 14424 states have (on average 1.4222129783693844) internal successors, (20514), 14430 states have internal predecessors, (20514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14431 states to 14431 states and 20514 transitions. [2022-07-19 18:12:26,036 INFO L78 Accepts]: Start accepts. Automaton has 14431 states and 20514 transitions. Word has length 74 [2022-07-19 18:12:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:12:26,037 INFO L495 AbstractCegarLoop]: Abstraction has 14431 states and 20514 transitions. [2022-07-19 18:12:26,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand 14431 states and 20514 transitions. [2022-07-19 18:12:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-19 18:12:26,048 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:12:26,048 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] [2022-07-19 18:12:26,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-19 18:12:26,049 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:12:26,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:12:26,049 INFO L85 PathProgramCache]: Analyzing trace with hash -612402544, now seen corresponding path program 1 times [2022-07-19 18:12:26,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:12:26,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561679317] [2022-07-19 18:12:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:12:26,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:12:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:12:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:12:26,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:12:26,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561679317] [2022-07-19 18:12:26,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561679317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:12:26,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:12:26,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:12:26,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561546660] [2022-07-19 18:12:26,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:12:26,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:12:26,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:12:26,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:12:26,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:12:26,512 INFO L87 Difference]: Start difference. First operand 14431 states and 20514 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:12:52,091 INFO L93 Difference]: Finished difference Result 54138 states and 77739 transitions. [2022-07-19 18:12:52,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-19 18:12:52,092 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-19 18:12:52,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:12:52,186 INFO L225 Difference]: With dead ends: 54138 [2022-07-19 18:12:52,186 INFO L226 Difference]: Without dead ends: 53702 [2022-07-19 18:12:52,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=367, Invalid=1039, Unknown=0, NotChecked=0, Total=1406 [2022-07-19 18:12:52,206 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 10289 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 3655 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10289 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 4559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 3655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:12:52,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10289 Valid, 4384 Invalid, 4559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 3655 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 18:12:52,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53702 states. [2022-07-19 18:12:58,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53702 to 14436. [2022-07-19 18:12:58,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14436 states, 14429 states have (on average 1.4220666712869914) internal successors, (20519), 14435 states have internal predecessors, (20519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:58,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14436 states to 14436 states and 20519 transitions. [2022-07-19 18:12:58,446 INFO L78 Accepts]: Start accepts. Automaton has 14436 states and 20519 transitions. Word has length 74 [2022-07-19 18:12:58,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:12:58,446 INFO L495 AbstractCegarLoop]: Abstraction has 14436 states and 20519 transitions. [2022-07-19 18:12:58,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:58,447 INFO L276 IsEmpty]: Start isEmpty. Operand 14436 states and 20519 transitions. [2022-07-19 18:12:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-19 18:12:58,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:12:58,449 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] [2022-07-19 18:12:58,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-19 18:12:58,450 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:12:58,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:12:58,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1442340775, now seen corresponding path program 1 times [2022-07-19 18:12:58,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:12:58,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387226026] [2022-07-19 18:12:58,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:12:58,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:12:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:12:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:12:58,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:12:58,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387226026] [2022-07-19 18:12:58,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387226026] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:12:58,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:12:58,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:12:58,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991701634] [2022-07-19 18:12:58,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:12:58,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:12:58,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:12:58,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:12:58,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:12:58,546 INFO L87 Difference]: Start difference. First operand 14436 states and 20519 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:13:08,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:13:08,028 INFO L93 Difference]: Finished difference Result 19452 states and 27508 transitions. [2022-07-19 18:13:08,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:13:08,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-19 18:13:08,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:13:08,056 INFO L225 Difference]: With dead ends: 19452 [2022-07-19 18:13:08,056 INFO L226 Difference]: Without dead ends: 19038 [2022-07-19 18:13:08,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:13:08,063 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 7005 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 2735 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7005 SdHoareTripleChecker+Valid, 3689 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:13:08,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7005 Valid, 3689 Invalid, 2908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2735 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 18:13:08,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19038 states. [2022-07-19 18:13:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19038 to 14436. [2022-07-19 18:13:13,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14436 states, 14429 states have (on average 1.4219973664148589) internal successors, (20518), 14435 states have internal predecessors, (20518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:13:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14436 states to 14436 states and 20518 transitions. [2022-07-19 18:13:13,878 INFO L78 Accepts]: Start accepts. Automaton has 14436 states and 20518 transitions. Word has length 74 [2022-07-19 18:13:13,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:13:13,878 INFO L495 AbstractCegarLoop]: Abstraction has 14436 states and 20518 transitions. [2022-07-19 18:13:13,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:13:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 14436 states and 20518 transitions. [2022-07-19 18:13:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-19 18:13:13,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:13:13,881 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] [2022-07-19 18:13:13,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-19 18:13:13,881 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:13:13,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:13:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash 426754260, now seen corresponding path program 1 times [2022-07-19 18:13:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:13:13,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001824812] [2022-07-19 18:13:13,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:13:13,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:13:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:13:13,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:13:13,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:13:13,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001824812] [2022-07-19 18:13:13,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001824812] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:13:13,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:13:13,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:13:13,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800622326] [2022-07-19 18:13:13,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:13:13,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:13:13,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:13:13,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:13:13,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:13:13,967 INFO L87 Difference]: Start difference. First operand 14436 states and 20518 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:13:23,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:13:23,675 INFO L93 Difference]: Finished difference Result 19452 states and 27507 transitions. [2022-07-19 18:13:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:13:23,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-19 18:13:23,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:13:23,699 INFO L225 Difference]: With dead ends: 19452 [2022-07-19 18:13:23,699 INFO L226 Difference]: Without dead ends: 19038 [2022-07-19 18:13:23,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:13:23,706 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 3462 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 2824 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3462 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 2914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:13:23,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3462 Valid, 3765 Invalid, 2914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2824 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 18:13:23,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19038 states.