./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.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.6.1.ufo.BOUNDED-12.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 ea17b6f261bb6e2069b46537416ceb2b28c77bf12fbc31c6c070453fa873ea8f --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 18:29:39,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 18:29:39,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 18:29:39,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 18:29:39,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 18:29:39,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 18:29:39,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 18:29:39,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 18:29:39,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 18:29:39,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 18:29:39,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 18:29:39,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 18:29:39,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 18:29:39,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 18:29:39,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 18:29:39,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 18:29:39,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 18:29:39,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 18:29:39,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 18:29:39,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 18:29:39,887 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 18:29:39,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 18:29:39,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 18:29:39,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 18:29:39,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 18:29:39,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 18:29:39,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 18:29:39,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 18:29:39,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 18:29:39,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 18:29:39,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 18:29:39,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 18:29:39,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 18:29:39,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 18:29:39,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 18:29:39,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 18:29:39,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 18:29:39,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 18:29:39,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 18:29:39,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 18:29:39,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 18:29:39,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 18:29:39,907 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 18:29:39,927 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 18:29:39,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 18:29:39,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 18:29:39,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 18:29:39,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 18:29:39,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 18:29:39,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 18:29:39,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 18:29:39,932 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 18:29:39,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 18:29:39,933 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 18:29:39,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 18:29:39,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 18:29:39,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 18:29:39,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 18:29:39,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 18:29:39,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 18:29:39,934 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 18:29:39,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 18:29:39,935 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 18:29:39,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 18:29:39,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 18:29:39,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 18:29:39,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 18:29:39,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:29:39,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 18:29:39,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 18:29:39,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 18:29:39,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 18:29:39,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 18:29:39,937 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 18:29:39,937 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 18:29:39,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 18:29:39,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea17b6f261bb6e2069b46537416ceb2b28c77bf12fbc31c6c070453fa873ea8f [2022-07-19 18:29:40,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 18:29:40,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 18:29:40,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 18:29:40,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 18:29:40,159 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 18:29:40,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2022-07-19 18:29:40,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a93fed6/8ab94db6dd994c4eb5e31b2f290dd773/FLAG1ffc893ec [2022-07-19 18:29:40,844 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 18:29:40,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2022-07-19 18:29:40,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a93fed6/8ab94db6dd994c4eb5e31b2f290dd773/FLAG1ffc893ec [2022-07-19 18:29:41,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a93fed6/8ab94db6dd994c4eb5e31b2f290dd773 [2022-07-19 18:29:41,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 18:29:41,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 18:29:41,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 18:29:41,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 18:29:41,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 18:29:41,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:29:41" (1/1) ... [2022-07-19 18:29:41,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dec4c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:41, skipping insertion in model container [2022-07-19 18:29:41,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:29:41" (1/1) ... [2022-07-19 18:29:41,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 18:29:41,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 18:29:41,893 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[80354,80367] [2022-07-19 18:29:41,953 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[115904,115917] [2022-07-19 18:29:41,984 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[133708,133721] [2022-07-19 18:29:41,999 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[142627,142640] [2022-07-19 18:29:42,021 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[147060,147073] [2022-07-19 18:29:42,031 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[151393,151406] [2022-07-19 18:29:42,099 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[186229,186242] [2022-07-19 18:29:42,132 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[203860,203873] [2022-07-19 18:29:42,146 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[212816,212829] [2022-07-19 18:29:42,153 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[217286,217299] [2022-07-19 18:29:42,162 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[221656,221669] [2022-07-19 18:29:42,192 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[240553,240566] [2022-07-19 18:29:42,206 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[249509,249522] [2022-07-19 18:29:42,214 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[253979,253992] [2022-07-19 18:29:42,221 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[258349,258362] [2022-07-19 18:29:42,229 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[263314,263327] [2022-07-19 18:29:42,235 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[267693,267706] [2022-07-19 18:29:42,242 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[272163,272176] [2022-07-19 18:29:42,250 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[276533,276546] [2022-07-19 18:29:42,257 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[281119,281132] [2022-07-19 18:29:42,264 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[285656,285669] [2022-07-19 18:29:42,272 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[290122,290135] [2022-07-19 18:29:42,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:29:42,330 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 18:29:42,495 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[80354,80367] [2022-07-19 18:29:42,537 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[115904,115917] [2022-07-19 18:29:42,559 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[133708,133721] [2022-07-19 18:29:42,571 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[142627,142640] [2022-07-19 18:29:42,576 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[147060,147073] [2022-07-19 18:29:42,582 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[151393,151406] [2022-07-19 18:29:42,630 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[186229,186242] [2022-07-19 18:29:42,652 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[203860,203873] [2022-07-19 18:29:42,663 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[212816,212829] [2022-07-19 18:29:42,669 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[217286,217299] [2022-07-19 18:29:42,686 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[221656,221669] [2022-07-19 18:29:42,711 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[240553,240566] [2022-07-19 18:29:42,729 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[249509,249522] [2022-07-19 18:29:42,735 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[253979,253992] [2022-07-19 18:29:42,741 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[258349,258362] [2022-07-19 18:29:42,748 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[263314,263327] [2022-07-19 18:29:42,754 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[267693,267706] [2022-07-19 18:29:42,760 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[272163,272176] [2022-07-19 18:29:42,766 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[276533,276546] [2022-07-19 18:29:42,773 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[281119,281132] [2022-07-19 18:29:42,779 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[285656,285669] [2022-07-19 18:29:42,786 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[290122,290135] [2022-07-19 18:29:42,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:29:42,828 INFO L208 MainTranslator]: Completed translation [2022-07-19 18:29:42,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42 WrapperNode [2022-07-19 18:29:42,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 18:29:42,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 18:29:42,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 18:29:42,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 18:29:42,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (1/1) ... [2022-07-19 18:29:42,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (1/1) ... [2022-07-19 18:29:43,002 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12453 [2022-07-19 18:29:43,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 18:29:43,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 18:29:43,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 18:29:43,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 18:29:43,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (1/1) ... [2022-07-19 18:29:43,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (1/1) ... [2022-07-19 18:29:43,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (1/1) ... [2022-07-19 18:29:43,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (1/1) ... [2022-07-19 18:29:43,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (1/1) ... [2022-07-19 18:29:43,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (1/1) ... [2022-07-19 18:29:43,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (1/1) ... [2022-07-19 18:29:43,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 18:29:43,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 18:29:43,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 18:29:43,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 18:29:43,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (1/1) ... [2022-07-19 18:29:43,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:29:43,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 18:29:43,213 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 18:29:43,217 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 18:29:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 18:29:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 18:29:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 18:29:43,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 18:29:43,681 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 18:29:43,682 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 18:29:46,957 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 18:29:46,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 18:29:46,980 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 18:29:46,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:29:46 BoogieIcfgContainer [2022-07-19 18:29:46,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 18:29:46,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 18:29:46,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 18:29:46,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 18:29:46,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 06:29:41" (1/3) ... [2022-07-19 18:29:46,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d5a3a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:29:46, skipping insertion in model container [2022-07-19 18:29:46,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:29:42" (2/3) ... [2022-07-19 18:29:46,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d5a3a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:29:46, skipping insertion in model container [2022-07-19 18:29:46,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:29:46" (3/3) ... [2022-07-19 18:29:46,989 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2022-07-19 18:29:46,998 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 18:29:46,998 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-07-19 18:29:47,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 18:29:47,080 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@4abe6d7a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@26d8fd55 [2022-07-19 18:29:47,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-07-19 18:29:47,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 2541 states, 2518 states have (on average 1.7589356632247817) internal successors, (4429), 2540 states have internal predecessors, (4429), 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 18:29:47,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-19 18:29:47,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:47,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:47,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:47,114 INFO L85 PathProgramCache]: Analyzing trace with hash -876960142, now seen corresponding path program 1 times [2022-07-19 18:29:47,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:47,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914727759] [2022-07-19 18:29:47,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:47,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:47,602 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 18:29:47,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:47,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914727759] [2022-07-19 18:29:47,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914727759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:47,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:47,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:29:47,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124661816] [2022-07-19 18:29:47,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:47,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:29:47,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:47,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:29:47,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:29:47,636 INFO L87 Difference]: Start difference. First operand has 2541 states, 2518 states have (on average 1.7589356632247817) internal successors, (4429), 2540 states have internal predecessors, (4429), 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 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 18:29:49,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:49,442 INFO L93 Difference]: Finished difference Result 4213 states and 7126 transitions. [2022-07-19 18:29:49,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:29:49,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 87 [2022-07-19 18:29:49,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:49,469 INFO L225 Difference]: With dead ends: 4213 [2022-07-19 18:29:49,470 INFO L226 Difference]: Without dead ends: 2941 [2022-07-19 18:29:49,479 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 18:29:49,486 INFO L413 NwaCegarLoop]: 1898 mSDtfsCounter, 13092 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13092 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 2341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:49,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13092 Valid, 2679 Invalid, 2341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:29:49,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2022-07-19 18:29:49,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2755. [2022-07-19 18:29:49,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2733 states have (on average 1.3241858763263812) internal successors, (3619), 2754 states have internal predecessors, (3619), 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 18:29:49,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3619 transitions. [2022-07-19 18:29:49,725 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3619 transitions. Word has length 87 [2022-07-19 18:29:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:49,726 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 3619 transitions. [2022-07-19 18:29:49,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 18:29:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3619 transitions. [2022-07-19 18:29:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-19 18:29:49,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:49,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:49,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 18:29:49,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:49,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:49,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1410328050, now seen corresponding path program 1 times [2022-07-19 18:29:49,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:49,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529393571] [2022-07-19 18:29:49,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:49,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:49,861 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 18:29:49,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:49,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529393571] [2022-07-19 18:29:49,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529393571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:49,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:49,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:29:49,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966407937] [2022-07-19 18:29:49,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:49,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:29:49,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:49,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:29:49,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:29:49,871 INFO L87 Difference]: Start difference. First operand 2755 states and 3619 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 18:29:50,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:50,520 INFO L93 Difference]: Finished difference Result 3042 states and 3982 transitions. [2022-07-19 18:29:50,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:29:50,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 87 [2022-07-19 18:29:50,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:50,526 INFO L225 Difference]: With dead ends: 3042 [2022-07-19 18:29:50,526 INFO L226 Difference]: Without dead ends: 1713 [2022-07-19 18:29:50,528 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 18:29:50,533 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 4657 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4657 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:50,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4657 Valid, 830 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 18:29:50,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2022-07-19 18:29:50,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1713. [2022-07-19 18:29:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1691 states have (on average 1.3341218214074513) internal successors, (2256), 1712 states have internal predecessors, (2256), 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 18:29:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2256 transitions. [2022-07-19 18:29:50,596 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2256 transitions. Word has length 87 [2022-07-19 18:29:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:50,598 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 2256 transitions. [2022-07-19 18:29:50,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 18:29:50,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2256 transitions. [2022-07-19 18:29:50,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-19 18:29:50,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:50,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:50,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 18:29:50,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:50,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:50,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1125625269, now seen corresponding path program 1 times [2022-07-19 18:29:50,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:50,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000555900] [2022-07-19 18:29:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:50,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:50,726 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 18:29:50,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:50,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000555900] [2022-07-19 18:29:50,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000555900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:50,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:50,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:29:50,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720759625] [2022-07-19 18:29:50,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:50,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:29:50,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:50,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:29:50,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:29:50,729 INFO L87 Difference]: Start difference. First operand 1713 states and 2256 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 18:29:51,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:51,178 INFO L93 Difference]: Finished difference Result 2133 states and 2819 transitions. [2022-07-19 18:29:51,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:29:51,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 87 [2022-07-19 18:29:51,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:51,183 INFO L225 Difference]: With dead ends: 2133 [2022-07-19 18:29:51,183 INFO L226 Difference]: Without dead ends: 1257 [2022-07-19 18:29:51,184 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 18:29:51,186 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 3393 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3393 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:51,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3393 Valid, 658 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 18:29:51,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2022-07-19 18:29:51,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2022-07-19 18:29:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1235 states have (on average 1.3522267206477734) internal successors, (1670), 1256 states have internal predecessors, (1670), 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 18:29:51,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1670 transitions. [2022-07-19 18:29:51,230 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1670 transitions. Word has length 87 [2022-07-19 18:29:51,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:51,231 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1670 transitions. [2022-07-19 18:29:51,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 18:29:51,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1670 transitions. [2022-07-19 18:29:51,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-19 18:29:51,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:51,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:51,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 18:29:51,234 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:51,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:51,234 INFO L85 PathProgramCache]: Analyzing trace with hash -229604869, now seen corresponding path program 1 times [2022-07-19 18:29:51,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:51,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712311588] [2022-07-19 18:29:51,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:51,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:51,334 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 18:29:51,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:51,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712311588] [2022-07-19 18:29:51,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712311588] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:51,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:51,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:29:51,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016038206] [2022-07-19 18:29:51,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:51,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:29:51,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:51,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:29:51,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:29:51,337 INFO L87 Difference]: Start difference. First operand 1257 states and 1670 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 18:29:51,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:51,696 INFO L93 Difference]: Finished difference Result 1801 states and 2409 transitions. [2022-07-19 18:29:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:29:51,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 89 [2022-07-19 18:29:51,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:51,700 INFO L225 Difference]: With dead ends: 1801 [2022-07-19 18:29:51,700 INFO L226 Difference]: Without dead ends: 1122 [2022-07-19 18:29:51,701 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 18:29:51,702 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 3035 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3035 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:51,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3035 Valid, 597 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:29:51,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-07-19 18:29:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1122. [2022-07-19 18:29:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1100 states have (on average 1.3681818181818182) internal successors, (1505), 1121 states have internal predecessors, (1505), 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 18:29:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1505 transitions. [2022-07-19 18:29:51,741 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1505 transitions. Word has length 89 [2022-07-19 18:29:51,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:51,742 INFO L495 AbstractCegarLoop]: Abstraction has 1122 states and 1505 transitions. [2022-07-19 18:29:51,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 18:29:51,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1505 transitions. [2022-07-19 18:29:51,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-19 18:29:51,743 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:51,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:51,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 18:29:51,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:51,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:51,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1455647616, now seen corresponding path program 1 times [2022-07-19 18:29:51,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:51,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527878080] [2022-07-19 18:29:51,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:51,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:51,808 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 18:29:51,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:51,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527878080] [2022-07-19 18:29:51,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527878080] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:51,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:51,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:29:51,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681901719] [2022-07-19 18:29:51,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:51,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:29:51,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:51,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:29:51,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:29:51,810 INFO L87 Difference]: Start difference. First operand 1122 states and 1505 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 18:29:52,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:52,138 INFO L93 Difference]: Finished difference Result 1612 states and 2170 transitions. [2022-07-19 18:29:52,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:29:52,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 91 [2022-07-19 18:29:52,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:52,143 INFO L225 Difference]: With dead ends: 1612 [2022-07-19 18:29:52,143 INFO L226 Difference]: Without dead ends: 1002 [2022-07-19 18:29:52,144 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 18:29:52,144 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 2688 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:52,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 557 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:29:52,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-07-19 18:29:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2022-07-19 18:29:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 980 states have (on average 1.3785714285714286) internal successors, (1351), 1001 states have internal predecessors, (1351), 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 18:29:52,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1351 transitions. [2022-07-19 18:29:52,210 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1351 transitions. Word has length 91 [2022-07-19 18:29:52,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:52,211 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 1351 transitions. [2022-07-19 18:29:52,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 18:29:52,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1351 transitions. [2022-07-19 18:29:52,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-19 18:29:52,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:52,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:52,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 18:29:52,213 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:52,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:52,214 INFO L85 PathProgramCache]: Analyzing trace with hash 591523847, now seen corresponding path program 1 times [2022-07-19 18:29:52,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:52,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43929611] [2022-07-19 18:29:52,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:52,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:52,337 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 18:29:52,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:52,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43929611] [2022-07-19 18:29:52,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43929611] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:52,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:52,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:29:52,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671692521] [2022-07-19 18:29:52,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:52,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:29:52,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:52,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:29:52,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:29:52,339 INFO L87 Difference]: Start difference. First operand 1002 states and 1351 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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 18:29:52,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:52,798 INFO L93 Difference]: Finished difference Result 1453 states and 1960 transitions. [2022-07-19 18:29:52,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:29:52,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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 93 [2022-07-19 18:29:52,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:52,801 INFO L225 Difference]: With dead ends: 1453 [2022-07-19 18:29:52,801 INFO L226 Difference]: Without dead ends: 994 [2022-07-19 18:29:52,802 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 18:29:52,803 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 2541 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2541 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:52,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2541 Valid, 482 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 18:29:52,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2022-07-19 18:29:52,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 994. [2022-07-19 18:29:52,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3786008230452675) internal successors, (1340), 993 states have internal predecessors, (1340), 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 18:29:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1340 transitions. [2022-07-19 18:29:52,856 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1340 transitions. Word has length 93 [2022-07-19 18:29:52,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:52,856 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1340 transitions. [2022-07-19 18:29:52,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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 18:29:52,857 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1340 transitions. [2022-07-19 18:29:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:29:52,858 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:52,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:52,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 18:29:52,859 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:52,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:52,859 INFO L85 PathProgramCache]: Analyzing trace with hash 328441748, now seen corresponding path program 1 times [2022-07-19 18:29:52,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:52,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348384633] [2022-07-19 18:29:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:52,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:53,034 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 18:29:53,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:53,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348384633] [2022-07-19 18:29:53,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348384633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:53,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:53,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 18:29:53,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838863231] [2022-07-19 18:29:53,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:53,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:29:53,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:53,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:29:53,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:29:53,037 INFO L87 Difference]: Start difference. First operand 994 states and 1340 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 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 18:29:53,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:53,863 INFO L93 Difference]: Finished difference Result 1809 states and 2377 transitions. [2022-07-19 18:29:53,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 18:29:53,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 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 95 [2022-07-19 18:29:53,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:53,868 INFO L225 Difference]: With dead ends: 1809 [2022-07-19 18:29:53,868 INFO L226 Difference]: Without dead ends: 1357 [2022-07-19 18:29:53,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-07-19 18:29:53,870 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 5229 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5229 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:53,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5229 Valid, 1187 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 18:29:53,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-07-19 18:29:53,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 994. [2022-07-19 18:29:53,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3775720164609053) internal successors, (1339), 993 states have internal predecessors, (1339), 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 18:29:53,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1339 transitions. [2022-07-19 18:29:53,939 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1339 transitions. Word has length 95 [2022-07-19 18:29:53,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:53,940 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1339 transitions. [2022-07-19 18:29:53,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 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 18:29:53,940 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1339 transitions. [2022-07-19 18:29:53,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:29:53,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:53,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:53,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 18:29:53,942 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:53,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:53,942 INFO L85 PathProgramCache]: Analyzing trace with hash 556118932, now seen corresponding path program 1 times [2022-07-19 18:29:53,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:53,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342705270] [2022-07-19 18:29:53,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:53,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:54,116 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 18:29:54,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:54,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342705270] [2022-07-19 18:29:54,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342705270] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:54,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:54,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:29:54,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685874741] [2022-07-19 18:29:54,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:54,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:29:54,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:54,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:29:54,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:29:54,119 INFO L87 Difference]: Start difference. First operand 994 states and 1339 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 18:29:55,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:55,426 INFO L93 Difference]: Finished difference Result 2036 states and 2784 transitions. [2022-07-19 18:29:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-19 18:29:55,427 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 95 [2022-07-19 18:29:55,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:55,432 INFO L225 Difference]: With dead ends: 2036 [2022-07-19 18:29:55,432 INFO L226 Difference]: Without dead ends: 1874 [2022-07-19 18:29:55,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:29:55,433 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 5180 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5180 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:55,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5180 Valid, 3045 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:29:55,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2022-07-19 18:29:55,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1009. [2022-07-19 18:29:55,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 987 states have (on average 1.3779128672745693) internal successors, (1360), 1008 states have internal predecessors, (1360), 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 18:29:55,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1360 transitions. [2022-07-19 18:29:55,494 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1360 transitions. Word has length 95 [2022-07-19 18:29:55,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:55,494 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1360 transitions. [2022-07-19 18:29:55,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 18:29:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1360 transitions. [2022-07-19 18:29:55,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:29:55,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:55,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:55,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 18:29:55,496 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:55,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:55,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1407707980, now seen corresponding path program 1 times [2022-07-19 18:29:55,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:55,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152314865] [2022-07-19 18:29:55,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:55,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:55,625 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 18:29:55,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:55,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152314865] [2022-07-19 18:29:55,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152314865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:55,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:55,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:29:55,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188869826] [2022-07-19 18:29:55,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:55,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:29:55,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:55,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:29:55,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:29:55,627 INFO L87 Difference]: Start difference. First operand 1009 states and 1360 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 18:29:56,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:56,913 INFO L93 Difference]: Finished difference Result 2067 states and 2816 transitions. [2022-07-19 18:29:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-19 18:29:56,913 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 95 [2022-07-19 18:29:56,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:56,918 INFO L225 Difference]: With dead ends: 2067 [2022-07-19 18:29:56,918 INFO L226 Difference]: Without dead ends: 1900 [2022-07-19 18:29:56,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:29:56,920 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 7300 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 2532 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7300 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 2532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:56,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7300 Valid, 3324 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 2532 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:29:56,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2022-07-19 18:29:56,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1014. [2022-07-19 18:29:56,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 992 states have (on average 1.376008064516129) internal successors, (1365), 1013 states have internal predecessors, (1365), 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 18:29:56,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1365 transitions. [2022-07-19 18:29:56,984 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1365 transitions. Word has length 95 [2022-07-19 18:29:56,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:56,985 INFO L495 AbstractCegarLoop]: Abstraction has 1014 states and 1365 transitions. [2022-07-19 18:29:56,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 18:29:56,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1365 transitions. [2022-07-19 18:29:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:29:56,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:56,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:56,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 18:29:56,987 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:56,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1248781324, now seen corresponding path program 1 times [2022-07-19 18:29:56,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:56,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559112592] [2022-07-19 18:29:56,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:56,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:57,143 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 18:29:57,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:57,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559112592] [2022-07-19 18:29:57,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559112592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:57,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:57,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:29:57,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798702530] [2022-07-19 18:29:57,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:57,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:29:57,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:57,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:29:57,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:29:57,145 INFO L87 Difference]: Start difference. First operand 1014 states and 1365 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 18:29:58,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:58,418 INFO L93 Difference]: Finished difference Result 2012 states and 2728 transitions. [2022-07-19 18:29:58,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-19 18:29:58,418 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 95 [2022-07-19 18:29:58,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:58,423 INFO L225 Difference]: With dead ends: 2012 [2022-07-19 18:29:58,423 INFO L226 Difference]: Without dead ends: 1858 [2022-07-19 18:29:58,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:29:58,425 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 6425 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 2496 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6425 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 2496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:58,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6425 Valid, 3072 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 2496 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:29:58,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2022-07-19 18:29:58,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1018. [2022-07-19 18:29:58,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 996 states have (on average 1.3765060240963856) internal successors, (1371), 1017 states have internal predecessors, (1371), 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 18:29:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1371 transitions. [2022-07-19 18:29:58,499 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1371 transitions. Word has length 95 [2022-07-19 18:29:58,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:58,500 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1371 transitions. [2022-07-19 18:29:58,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 18:29:58,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1371 transitions. [2022-07-19 18:29:58,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:29:58,501 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:58,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:58,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 18:29:58,502 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:58,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:58,502 INFO L85 PathProgramCache]: Analyzing trace with hash -65064876, now seen corresponding path program 1 times [2022-07-19 18:29:58,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:58,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170235868] [2022-07-19 18:29:58,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:58,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:58,619 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 18:29:58,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:58,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170235868] [2022-07-19 18:29:58,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170235868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:58,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:58,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:29:58,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148034431] [2022-07-19 18:29:58,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:58,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:29:58,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:58,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:29:58,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:29:58,622 INFO L87 Difference]: Start difference. First operand 1018 states and 1371 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 18:29:59,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:29:59,789 INFO L93 Difference]: Finished difference Result 2020 states and 2737 transitions. [2022-07-19 18:29:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-19 18:29:59,790 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 95 [2022-07-19 18:29:59,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:29:59,794 INFO L225 Difference]: With dead ends: 2020 [2022-07-19 18:29:59,794 INFO L226 Difference]: Without dead ends: 1866 [2022-07-19 18:29:59,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:29:59,796 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 4984 mSDsluCounter, 3030 mSDsCounter, 0 mSdLazyCounter, 2981 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 3177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 2981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:29:59,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4984 Valid, 3626 Invalid, 3177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 2981 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:29:59,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-07-19 18:29:59,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1034. [2022-07-19 18:29:59,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1012 states have (on average 1.3764822134387351) internal successors, (1393), 1033 states have internal predecessors, (1393), 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 18:29:59,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1393 transitions. [2022-07-19 18:29:59,872 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1393 transitions. Word has length 95 [2022-07-19 18:29:59,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:29:59,873 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1393 transitions. [2022-07-19 18:29:59,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 18:29:59,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1393 transitions. [2022-07-19 18:29:59,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:29:59,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:29:59,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:29:59,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 18:29:59,875 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:29:59,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:29:59,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1071889132, now seen corresponding path program 1 times [2022-07-19 18:29:59,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:29:59,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151506333] [2022-07-19 18:29:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:29:59,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:29:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:29:59,963 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 18:29:59,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:29:59,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151506333] [2022-07-19 18:29:59,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151506333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:29:59,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:29:59,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:29:59,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487890639] [2022-07-19 18:29:59,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:29:59,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:29:59,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:29:59,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:29:59,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:29:59,965 INFO L87 Difference]: Start difference. First operand 1034 states and 1393 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 18:30:00,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:00,713 INFO L93 Difference]: Finished difference Result 1815 states and 2452 transitions. [2022-07-19 18:30:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:00,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 95 [2022-07-19 18:30:00,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:00,718 INFO L225 Difference]: With dead ends: 1815 [2022-07-19 18:30:00,718 INFO L226 Difference]: Without dead ends: 1809 [2022-07-19 18:30:00,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:00,719 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 3792 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3792 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:00,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3792 Valid, 2460 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 18:30:00,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2022-07-19 18:30:00,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1034. [2022-07-19 18:30:00,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1012 states have (on average 1.3754940711462451) internal successors, (1392), 1033 states have internal predecessors, (1392), 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 18:30:00,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1392 transitions. [2022-07-19 18:30:00,813 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1392 transitions. Word has length 95 [2022-07-19 18:30:00,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:00,813 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1392 transitions. [2022-07-19 18:30:00,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 18:30:00,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1392 transitions. [2022-07-19 18:30:00,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:30:00,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:00,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:00,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 18:30:00,815 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:00,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:00,816 INFO L85 PathProgramCache]: Analyzing trace with hash -485803098, now seen corresponding path program 1 times [2022-07-19 18:30:00,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:00,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570925321] [2022-07-19 18:30:00,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:00,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:00,921 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 18:30:00,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:00,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570925321] [2022-07-19 18:30:00,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570925321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:00,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:00,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:00,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194099870] [2022-07-19 18:30:00,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:00,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:00,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:00,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:00,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:00,923 INFO L87 Difference]: Start difference. First operand 1034 states and 1392 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 18:30:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:01,651 INFO L93 Difference]: Finished difference Result 1506 states and 2069 transitions. [2022-07-19 18:30:01,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:01,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-19 18:30:01,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:01,656 INFO L225 Difference]: With dead ends: 1506 [2022-07-19 18:30:01,656 INFO L226 Difference]: Without dead ends: 1224 [2022-07-19 18:30:01,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:01,682 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 3155 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3155 SdHoareTripleChecker+Valid, 2963 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:01,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3155 Valid, 2963 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2087 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 18:30:01,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2022-07-19 18:30:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 994. [2022-07-19 18:30:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.375514403292181) internal successors, (1337), 993 states have internal predecessors, (1337), 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 18:30:01,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1337 transitions. [2022-07-19 18:30:01,778 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1337 transitions. Word has length 96 [2022-07-19 18:30:01,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:01,778 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1337 transitions. [2022-07-19 18:30:01,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 18:30:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1337 transitions. [2022-07-19 18:30:01,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:30:01,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:01,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:01,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 18:30:01,780 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:01,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:01,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1164032538, now seen corresponding path program 1 times [2022-07-19 18:30:01,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:01,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400177417] [2022-07-19 18:30:01,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:01,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:01,871 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 18:30:01,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:01,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400177417] [2022-07-19 18:30:01,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400177417] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:01,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:01,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:01,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605085864] [2022-07-19 18:30:01,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:01,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:01,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:01,873 INFO L87 Difference]: Start difference. First operand 994 states and 1337 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 18:30:02,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:02,858 INFO L93 Difference]: Finished difference Result 1915 states and 2608 transitions. [2022-07-19 18:30:02,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:02,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-19 18:30:02,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:02,863 INFO L225 Difference]: With dead ends: 1915 [2022-07-19 18:30:02,863 INFO L226 Difference]: Without dead ends: 1764 [2022-07-19 18:30:02,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:02,864 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 2650 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:02,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 2361 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:02,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-07-19 18:30:02,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 994. [2022-07-19 18:30:02,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.374485596707819) internal successors, (1336), 993 states have internal predecessors, (1336), 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 18:30:02,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1336 transitions. [2022-07-19 18:30:02,949 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1336 transitions. Word has length 96 [2022-07-19 18:30:02,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:02,949 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1336 transitions. [2022-07-19 18:30:02,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 18:30:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1336 transitions. [2022-07-19 18:30:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:30:02,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:02,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:02,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 18:30:02,952 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:02,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:02,952 INFO L85 PathProgramCache]: Analyzing trace with hash -666876154, now seen corresponding path program 1 times [2022-07-19 18:30:02,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:02,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487684189] [2022-07-19 18:30:02,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:02,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:03,033 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 18:30:03,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:03,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487684189] [2022-07-19 18:30:03,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487684189] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:03,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:03,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:03,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596221058] [2022-07-19 18:30:03,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:03,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:03,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:03,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:03,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:03,035 INFO L87 Difference]: Start difference. First operand 994 states and 1336 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 18:30:03,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:03,950 INFO L93 Difference]: Finished difference Result 1915 states and 2606 transitions. [2022-07-19 18:30:03,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:03,951 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-19 18:30:03,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:03,955 INFO L225 Difference]: With dead ends: 1915 [2022-07-19 18:30:03,955 INFO L226 Difference]: Without dead ends: 1764 [2022-07-19 18:30:03,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:03,958 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 2643 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2643 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:03,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2643 Valid, 2364 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 18:30:03,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-07-19 18:30:04,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 994. [2022-07-19 18:30:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.373456790123457) internal successors, (1335), 993 states have internal predecessors, (1335), 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 18:30:04,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1335 transitions. [2022-07-19 18:30:04,129 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1335 transitions. Word has length 96 [2022-07-19 18:30:04,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:04,130 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1335 transitions. [2022-07-19 18:30:04,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 18:30:04,130 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1335 transitions. [2022-07-19 18:30:04,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:30:04,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:04,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:04,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 18:30:04,132 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:04,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:04,132 INFO L85 PathProgramCache]: Analyzing trace with hash 712350950, now seen corresponding path program 1 times [2022-07-19 18:30:04,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:04,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347192766] [2022-07-19 18:30:04,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:04,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:04,228 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 18:30:04,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:04,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347192766] [2022-07-19 18:30:04,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347192766] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:04,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:04,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:04,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100132745] [2022-07-19 18:30:04,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:04,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:04,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:04,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:04,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:04,231 INFO L87 Difference]: Start difference. First operand 994 states and 1335 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 18:30:05,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:05,164 INFO L93 Difference]: Finished difference Result 1974 states and 2700 transitions. [2022-07-19 18:30:05,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:05,164 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-19 18:30:05,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:05,169 INFO L225 Difference]: With dead ends: 1974 [2022-07-19 18:30:05,169 INFO L226 Difference]: Without dead ends: 1812 [2022-07-19 18:30:05,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:05,170 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2647 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2647 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:05,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2647 Valid, 2490 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 18:30:05,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-19 18:30:05,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2022-07-19 18:30:05,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3724279835390947) internal successors, (1334), 993 states have internal predecessors, (1334), 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 18:30:05,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1334 transitions. [2022-07-19 18:30:05,260 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1334 transitions. Word has length 96 [2022-07-19 18:30:05,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:05,261 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1334 transitions. [2022-07-19 18:30:05,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 18:30:05,261 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1334 transitions. [2022-07-19 18:30:05,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:30:05,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:05,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:05,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 18:30:05,263 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:05,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:05,263 INFO L85 PathProgramCache]: Analyzing trace with hash -970429882, now seen corresponding path program 1 times [2022-07-19 18:30:05,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:05,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459021863] [2022-07-19 18:30:05,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:05,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:05,342 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 18:30:05,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:05,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459021863] [2022-07-19 18:30:05,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459021863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:05,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:05,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:05,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490927454] [2022-07-19 18:30:05,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:05,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:05,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:05,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:05,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:05,345 INFO L87 Difference]: Start difference. First operand 994 states and 1334 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 18:30:06,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:06,302 INFO L93 Difference]: Finished difference Result 1970 states and 2696 transitions. [2022-07-19 18:30:06,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:06,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-19 18:30:06,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:06,307 INFO L225 Difference]: With dead ends: 1970 [2022-07-19 18:30:06,307 INFO L226 Difference]: Without dead ends: 1812 [2022-07-19 18:30:06,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:06,308 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3912 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3912 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:06,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3912 Valid, 2496 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 18:30:06,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-19 18:30:06,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2022-07-19 18:30:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3713991769547325) internal successors, (1333), 993 states have internal predecessors, (1333), 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 18:30:06,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1333 transitions. [2022-07-19 18:30:06,399 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1333 transitions. Word has length 96 [2022-07-19 18:30:06,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:06,399 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1333 transitions. [2022-07-19 18:30:06,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 18:30:06,400 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1333 transitions. [2022-07-19 18:30:06,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:30:06,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:06,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:06,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 18:30:06,402 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:06,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1887012889, now seen corresponding path program 1 times [2022-07-19 18:30:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:06,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564716909] [2022-07-19 18:30:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:06,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:06,545 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 18:30:06,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:06,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564716909] [2022-07-19 18:30:06,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564716909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:06,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:06,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 18:30:06,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007266243] [2022-07-19 18:30:06,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:06,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 18:30:06,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:06,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 18:30:06,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-19 18:30:06,548 INFO L87 Difference]: Start difference. First operand 994 states and 1333 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 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 18:30:07,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:07,857 INFO L93 Difference]: Finished difference Result 1895 states and 2615 transitions. [2022-07-19 18:30:07,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 18:30:07,857 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 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 97 [2022-07-19 18:30:07,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:07,860 INFO L225 Difference]: With dead ends: 1895 [2022-07-19 18:30:07,860 INFO L226 Difference]: Without dead ends: 1464 [2022-07-19 18:30:07,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2022-07-19 18:30:07,861 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 3648 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3648 SdHoareTripleChecker+Valid, 3131 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:07,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3648 Valid, 3131 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:30:07,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-07-19 18:30:07,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 994. [2022-07-19 18:30:07,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3693415637860082) internal successors, (1331), 993 states have internal predecessors, (1331), 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 18:30:07,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1331 transitions. [2022-07-19 18:30:07,957 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1331 transitions. Word has length 97 [2022-07-19 18:30:07,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:07,957 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1331 transitions. [2022-07-19 18:30:07,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 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 18:30:07,957 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1331 transitions. [2022-07-19 18:30:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:30:07,959 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:07,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:07,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 18:30:07,959 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:07,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:07,960 INFO L85 PathProgramCache]: Analyzing trace with hash -2083812519, now seen corresponding path program 1 times [2022-07-19 18:30:07,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:07,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941345284] [2022-07-19 18:30:07,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:07,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:08,043 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 18:30:08,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:08,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941345284] [2022-07-19 18:30:08,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941345284] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:08,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:08,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:08,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749487112] [2022-07-19 18:30:08,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:08,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:08,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:08,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:08,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:08,046 INFO L87 Difference]: Start difference. First operand 994 states and 1331 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:09,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:09,196 INFO L93 Difference]: Finished difference Result 1770 states and 2383 transitions. [2022-07-19 18:30:09,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:09,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2022-07-19 18:30:09,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:09,200 INFO L225 Difference]: With dead ends: 1770 [2022-07-19 18:30:09,200 INFO L226 Difference]: Without dead ends: 1764 [2022-07-19 18:30:09,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:09,201 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 4953 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:09,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 2424 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:30:09,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-07-19 18:30:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 994. [2022-07-19 18:30:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.367283950617284) internal successors, (1329), 993 states have internal predecessors, (1329), 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 18:30:09,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1329 transitions. [2022-07-19 18:30:09,303 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1329 transitions. Word has length 97 [2022-07-19 18:30:09,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:09,303 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1329 transitions. [2022-07-19 18:30:09,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:09,303 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1329 transitions. [2022-07-19 18:30:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:30:09,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:09,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:09,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 18:30:09,305 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:09,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:09,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1112735129, now seen corresponding path program 1 times [2022-07-19 18:30:09,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:09,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126784406] [2022-07-19 18:30:09,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:09,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:09,390 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 18:30:09,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:09,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126784406] [2022-07-19 18:30:09,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126784406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:09,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:09,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:09,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672229361] [2022-07-19 18:30:09,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:09,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:09,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:09,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:09,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:09,392 INFO L87 Difference]: Start difference. First operand 994 states and 1329 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:10,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:10,241 INFO L93 Difference]: Finished difference Result 1831 states and 2476 transitions. [2022-07-19 18:30:10,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:10,241 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2022-07-19 18:30:10,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:10,244 INFO L225 Difference]: With dead ends: 1831 [2022-07-19 18:30:10,244 INFO L226 Difference]: Without dead ends: 1812 [2022-07-19 18:30:10,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:10,246 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2654 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:10,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 2483 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 18:30:10,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-19 18:30:10,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2022-07-19 18:30:10,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3652263374485596) internal successors, (1327), 993 states have internal predecessors, (1327), 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 18:30:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1327 transitions. [2022-07-19 18:30:10,359 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1327 transitions. Word has length 97 [2022-07-19 18:30:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:10,383 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1327 transitions. [2022-07-19 18:30:10,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1327 transitions. [2022-07-19 18:30:10,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:30:10,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:10,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:10,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 18:30:10,386 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:10,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:10,386 INFO L85 PathProgramCache]: Analyzing trace with hash 759964249, now seen corresponding path program 1 times [2022-07-19 18:30:10,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:10,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135367304] [2022-07-19 18:30:10,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:10,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:10,469 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 18:30:10,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:10,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135367304] [2022-07-19 18:30:10,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135367304] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:10,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:10,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:10,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544568240] [2022-07-19 18:30:10,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:10,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:10,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:10,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:10,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:10,471 INFO L87 Difference]: Start difference. First operand 994 states and 1327 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:11,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:11,636 INFO L93 Difference]: Finished difference Result 1770 states and 2377 transitions. [2022-07-19 18:30:11,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:11,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2022-07-19 18:30:11,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:11,639 INFO L225 Difference]: With dead ends: 1770 [2022-07-19 18:30:11,639 INFO L226 Difference]: Without dead ends: 1764 [2022-07-19 18:30:11,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:11,640 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 3724 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3724 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:11,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3724 Valid, 2482 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1856 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:30:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-07-19 18:30:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 994. [2022-07-19 18:30:11,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3631687242798354) internal successors, (1325), 993 states have internal predecessors, (1325), 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 18:30:11,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1325 transitions. [2022-07-19 18:30:11,748 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1325 transitions. Word has length 97 [2022-07-19 18:30:11,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:11,748 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1325 transitions. [2022-07-19 18:30:11,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:11,748 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1325 transitions. [2022-07-19 18:30:11,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:30:11,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:11,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:11,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 18:30:11,750 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:11,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:11,750 INFO L85 PathProgramCache]: Analyzing trace with hash -639309095, now seen corresponding path program 1 times [2022-07-19 18:30:11,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:11,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514235206] [2022-07-19 18:30:11,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:11,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:11,832 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 18:30:11,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:11,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514235206] [2022-07-19 18:30:11,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514235206] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:11,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:11,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:11,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615545003] [2022-07-19 18:30:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:11,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:11,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:11,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:11,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:11,835 INFO L87 Difference]: Start difference. First operand 994 states and 1325 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:12,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:12,934 INFO L93 Difference]: Finished difference Result 1981 states and 2694 transitions. [2022-07-19 18:30:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:12,935 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2022-07-19 18:30:12,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:12,937 INFO L225 Difference]: With dead ends: 1981 [2022-07-19 18:30:12,938 INFO L226 Difference]: Without dead ends: 1812 [2022-07-19 18:30:12,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:12,939 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 5180 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5180 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:12,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5180 Valid, 2493 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:12,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-19 18:30:13,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2022-07-19 18:30:13,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3611111111111112) internal successors, (1323), 993 states have internal predecessors, (1323), 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 18:30:13,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1323 transitions. [2022-07-19 18:30:13,081 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1323 transitions. Word has length 97 [2022-07-19 18:30:13,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:13,081 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1323 transitions. [2022-07-19 18:30:13,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:13,081 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1323 transitions. [2022-07-19 18:30:13,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:30:13,083 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:13,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:13,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-19 18:30:13,083 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:13,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:13,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1525936807, now seen corresponding path program 1 times [2022-07-19 18:30:13,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:13,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171191449] [2022-07-19 18:30:13,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:13,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:13,180 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 18:30:13,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:13,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171191449] [2022-07-19 18:30:13,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171191449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:13,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:13,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:13,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130047838] [2022-07-19 18:30:13,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:13,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:13,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:13,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:13,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:13,182 INFO L87 Difference]: Start difference. First operand 994 states and 1323 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:14,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:14,313 INFO L93 Difference]: Finished difference Result 1912 states and 2588 transitions. [2022-07-19 18:30:14,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:14,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2022-07-19 18:30:14,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:14,316 INFO L225 Difference]: With dead ends: 1912 [2022-07-19 18:30:14,316 INFO L226 Difference]: Without dead ends: 1763 [2022-07-19 18:30:14,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:14,317 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 2547 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2547 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:14,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2547 Valid, 2521 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:14,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2022-07-19 18:30:14,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 993. [2022-07-19 18:30:14,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 971 states have (on average 1.360453141091658) internal successors, (1321), 992 states have internal predecessors, (1321), 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 18:30:14,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1321 transitions. [2022-07-19 18:30:14,435 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1321 transitions. Word has length 97 [2022-07-19 18:30:14,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:14,435 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1321 transitions. [2022-07-19 18:30:14,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:14,436 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1321 transitions. [2022-07-19 18:30:14,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:30:14,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:14,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:14,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-19 18:30:14,437 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:14,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1939604839, now seen corresponding path program 1 times [2022-07-19 18:30:14,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:14,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430468774] [2022-07-19 18:30:14,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:14,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:14,545 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 18:30:14,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:14,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430468774] [2022-07-19 18:30:14,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430468774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:14,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:14,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:14,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288992474] [2022-07-19 18:30:14,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:14,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:14,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:14,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:14,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:14,548 INFO L87 Difference]: Start difference. First operand 993 states and 1321 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:15,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:15,594 INFO L93 Difference]: Finished difference Result 1967 states and 2674 transitions. [2022-07-19 18:30:15,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:15,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2022-07-19 18:30:15,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:15,597 INFO L225 Difference]: With dead ends: 1967 [2022-07-19 18:30:15,598 INFO L226 Difference]: Without dead ends: 1810 [2022-07-19 18:30:15,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:15,599 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2591 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:15,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2591 Valid, 2497 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1786 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:15,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2022-07-19 18:30:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 993. [2022-07-19 18:30:15,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 971 states have (on average 1.3594232749742534) internal successors, (1320), 992 states have internal predecessors, (1320), 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 18:30:15,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1320 transitions. [2022-07-19 18:30:15,721 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1320 transitions. Word has length 97 [2022-07-19 18:30:15,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:15,721 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1320 transitions. [2022-07-19 18:30:15,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:15,721 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1320 transitions. [2022-07-19 18:30:15,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:30:15,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:15,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:15,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-19 18:30:15,723 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:15,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:15,724 INFO L85 PathProgramCache]: Analyzing trace with hash -796530713, now seen corresponding path program 1 times [2022-07-19 18:30:15,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:15,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747592033] [2022-07-19 18:30:15,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:15,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:15,848 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 18:30:15,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:15,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747592033] [2022-07-19 18:30:15,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747592033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:15,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:15,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:15,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801915338] [2022-07-19 18:30:15,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:15,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:15,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:15,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:15,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:15,849 INFO L87 Difference]: Start difference. First operand 993 states and 1320 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:16,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:16,884 INFO L93 Difference]: Finished difference Result 2071 states and 2838 transitions. [2022-07-19 18:30:16,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:16,884 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2022-07-19 18:30:16,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:16,895 INFO L225 Difference]: With dead ends: 2071 [2022-07-19 18:30:16,896 INFO L226 Difference]: Without dead ends: 1865 [2022-07-19 18:30:16,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:30:16,900 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 4071 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4071 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:16,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4071 Valid, 3627 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2529 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 18:30:16,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2022-07-19 18:30:17,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 993. [2022-07-19 18:30:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 971 states have (on average 1.3583934088568486) internal successors, (1319), 992 states have internal predecessors, (1319), 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 18:30:17,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1319 transitions. [2022-07-19 18:30:17,033 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1319 transitions. Word has length 97 [2022-07-19 18:30:17,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:17,034 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1319 transitions. [2022-07-19 18:30:17,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1319 transitions. [2022-07-19 18:30:17,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:30:17,035 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:17,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:17,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-19 18:30:17,036 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:17,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1267448231, now seen corresponding path program 1 times [2022-07-19 18:30:17,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:17,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400497480] [2022-07-19 18:30:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:17,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:17,187 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 18:30:17,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:17,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400497480] [2022-07-19 18:30:17,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400497480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:17,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:17,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:30:17,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907057086] [2022-07-19 18:30:17,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:17,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:30:17,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:17,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:30:17,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:30:17,189 INFO L87 Difference]: Start difference. First operand 993 states and 1319 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 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 18:30:19,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:19,533 INFO L93 Difference]: Finished difference Result 3381 states and 4747 transitions. [2022-07-19 18:30:19,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:30:19,534 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 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 97 [2022-07-19 18:30:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:19,547 INFO L225 Difference]: With dead ends: 3381 [2022-07-19 18:30:19,547 INFO L226 Difference]: Without dead ends: 3161 [2022-07-19 18:30:19,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:30:19,548 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 8800 mSDsluCounter, 3203 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8800 SdHoareTripleChecker+Valid, 4225 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:19,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8800 Valid, 4225 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 18:30:19,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2022-07-19 18:30:19,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 998. [2022-07-19 18:30:19,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3565573770491803) internal successors, (1324), 997 states have internal predecessors, (1324), 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 18:30:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1324 transitions. [2022-07-19 18:30:19,726 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1324 transitions. Word has length 97 [2022-07-19 18:30:19,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:19,727 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1324 transitions. [2022-07-19 18:30:19,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 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 18:30:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1324 transitions. [2022-07-19 18:30:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:30:19,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:19,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:19,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-19 18:30:19,728 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:19,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:19,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1888632039, now seen corresponding path program 1 times [2022-07-19 18:30:19,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:19,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292803287] [2022-07-19 18:30:19,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:19,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:19,818 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 18:30:19,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:19,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292803287] [2022-07-19 18:30:19,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292803287] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:19,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:19,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:19,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58453111] [2022-07-19 18:30:19,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:19,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:19,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:19,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:19,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:19,820 INFO L87 Difference]: Start difference. First operand 998 states and 1324 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:21,018 INFO L93 Difference]: Finished difference Result 1922 states and 2595 transitions. [2022-07-19 18:30:21,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:21,019 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2022-07-19 18:30:21,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:21,022 INFO L225 Difference]: With dead ends: 1922 [2022-07-19 18:30:21,022 INFO L226 Difference]: Without dead ends: 1768 [2022-07-19 18:30:21,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:21,024 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 2540 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:21,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2540 Valid, 2544 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:21,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-19 18:30:21,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 998. [2022-07-19 18:30:21,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3555327868852458) internal successors, (1323), 997 states have internal predecessors, (1323), 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 18:30:21,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1323 transitions. [2022-07-19 18:30:21,204 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1323 transitions. Word has length 97 [2022-07-19 18:30:21,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:21,205 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1323 transitions. [2022-07-19 18:30:21,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 18:30:21,205 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1323 transitions. [2022-07-19 18:30:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:21,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:21,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:21,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-19 18:30:21,206 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:21,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:21,207 INFO L85 PathProgramCache]: Analyzing trace with hash -983974751, now seen corresponding path program 1 times [2022-07-19 18:30:21,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:21,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790356577] [2022-07-19 18:30:21,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:21,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:21,300 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 18:30:21,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:21,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790356577] [2022-07-19 18:30:21,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790356577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:21,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:21,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:21,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932687905] [2022-07-19 18:30:21,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:21,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:21,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:21,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:21,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:21,302 INFO L87 Difference]: Start difference. First operand 998 states and 1323 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:22,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:22,594 INFO L93 Difference]: Finished difference Result 1922 states and 2593 transitions. [2022-07-19 18:30:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:22,594 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:22,597 INFO L225 Difference]: With dead ends: 1922 [2022-07-19 18:30:22,597 INFO L226 Difference]: Without dead ends: 1768 [2022-07-19 18:30:22,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:22,598 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 3637 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3637 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:22,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3637 Valid, 2551 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:30:22,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-19 18:30:22,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 998. [2022-07-19 18:30:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.353483606557377) internal successors, (1321), 997 states have internal predecessors, (1321), 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 18:30:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1321 transitions. [2022-07-19 18:30:22,788 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1321 transitions. Word has length 98 [2022-07-19 18:30:22,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:22,789 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1321 transitions. [2022-07-19 18:30:22,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1321 transitions. [2022-07-19 18:30:22,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:22,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:22,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:22,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-19 18:30:22,790 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:22,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:22,791 INFO L85 PathProgramCache]: Analyzing trace with hash -594891711, now seen corresponding path program 1 times [2022-07-19 18:30:22,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:22,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55079925] [2022-07-19 18:30:22,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:22,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:22,873 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 18:30:22,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:22,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55079925] [2022-07-19 18:30:22,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55079925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:22,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:22,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:22,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684726542] [2022-07-19 18:30:22,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:22,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:22,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:22,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:22,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:22,875 INFO L87 Difference]: Start difference. First operand 998 states and 1321 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:24,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:24,117 INFO L93 Difference]: Finished difference Result 1984 states and 2683 transitions. [2022-07-19 18:30:24,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:24,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:24,121 INFO L225 Difference]: With dead ends: 1984 [2022-07-19 18:30:24,121 INFO L226 Difference]: Without dead ends: 1815 [2022-07-19 18:30:24,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:24,122 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3887 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3887 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:24,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3887 Valid, 2490 Invalid, 1875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:24,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-19 18:30:24,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-19 18:30:24,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3514344262295082) internal successors, (1319), 997 states have internal predecessors, (1319), 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 18:30:24,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1319 transitions. [2022-07-19 18:30:24,345 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1319 transitions. Word has length 98 [2022-07-19 18:30:24,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:24,345 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1319 transitions. [2022-07-19 18:30:24,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:24,346 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1319 transitions. [2022-07-19 18:30:24,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:24,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:24,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:24,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-19 18:30:24,347 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:24,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:24,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1325336959, now seen corresponding path program 1 times [2022-07-19 18:30:24,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:24,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266507380] [2022-07-19 18:30:24,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:24,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:24,435 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 18:30:24,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:24,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266507380] [2022-07-19 18:30:24,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266507380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:24,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:24,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:24,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447845519] [2022-07-19 18:30:24,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:24,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:24,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:24,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:24,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:24,437 INFO L87 Difference]: Start difference. First operand 998 states and 1319 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:25,652 INFO L93 Difference]: Finished difference Result 1983 states and 2681 transitions. [2022-07-19 18:30:25,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:25,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:25,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:25,655 INFO L225 Difference]: With dead ends: 1983 [2022-07-19 18:30:25,656 INFO L226 Difference]: Without dead ends: 1815 [2022-07-19 18:30:25,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:25,657 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3851 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3851 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:25,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3851 Valid, 2496 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:25,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-19 18:30:25,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-19 18:30:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3493852459016393) internal successors, (1317), 997 states have internal predecessors, (1317), 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 18:30:25,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1317 transitions. [2022-07-19 18:30:25,849 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1317 transitions. Word has length 98 [2022-07-19 18:30:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:25,849 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1317 transitions. [2022-07-19 18:30:25,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1317 transitions. [2022-07-19 18:30:25,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:25,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:25,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:25,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-19 18:30:25,851 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:25,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:25,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1660924641, now seen corresponding path program 1 times [2022-07-19 18:30:25,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:25,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399997248] [2022-07-19 18:30:25,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:25,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:25,940 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 18:30:25,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:25,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399997248] [2022-07-19 18:30:25,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399997248] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:25,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:25,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:25,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073260039] [2022-07-19 18:30:25,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:25,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:25,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:25,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:25,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:25,942 INFO L87 Difference]: Start difference. First operand 998 states and 1317 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:27,296 INFO L93 Difference]: Finished difference Result 2123 states and 2893 transitions. [2022-07-19 18:30:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:27,297 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:27,299 INFO L225 Difference]: With dead ends: 2123 [2022-07-19 18:30:27,299 INFO L226 Difference]: Without dead ends: 1865 [2022-07-19 18:30:27,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:30:27,310 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 4570 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 3235 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:27,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4570 Valid, 3235 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2168 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:30:27,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2022-07-19 18:30:27,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 998. [2022-07-19 18:30:27,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3473360655737705) internal successors, (1315), 997 states have internal predecessors, (1315), 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 18:30:27,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1315 transitions. [2022-07-19 18:30:27,505 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1315 transitions. Word has length 98 [2022-07-19 18:30:27,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:27,505 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1315 transitions. [2022-07-19 18:30:27,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:27,506 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1315 transitions. [2022-07-19 18:30:27,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:27,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:27,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:27,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-19 18:30:27,508 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:27,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:27,508 INFO L85 PathProgramCache]: Analyzing trace with hash -743182655, now seen corresponding path program 1 times [2022-07-19 18:30:27,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:27,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435891887] [2022-07-19 18:30:27,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:27,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:27,598 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 18:30:27,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:27,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435891887] [2022-07-19 18:30:27,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435891887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:27,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:27,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:27,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963005305] [2022-07-19 18:30:27,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:27,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:27,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:27,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:27,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:27,601 INFO L87 Difference]: Start difference. First operand 998 states and 1315 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:28,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:28,890 INFO L93 Difference]: Finished difference Result 1973 states and 2663 transitions. [2022-07-19 18:30:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:28,890 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:28,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:28,892 INFO L225 Difference]: With dead ends: 1973 [2022-07-19 18:30:28,892 INFO L226 Difference]: Without dead ends: 1815 [2022-07-19 18:30:28,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:28,894 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3869 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3869 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:28,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3869 Valid, 2493 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:28,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-19 18:30:29,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-19 18:30:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.346311475409836) internal successors, (1314), 997 states have internal predecessors, (1314), 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 18:30:29,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1314 transitions. [2022-07-19 18:30:29,071 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1314 transitions. Word has length 98 [2022-07-19 18:30:29,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:29,072 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1314 transitions. [2022-07-19 18:30:29,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:29,072 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1314 transitions. [2022-07-19 18:30:29,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:29,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:29,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:29,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-19 18:30:29,074 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:29,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:29,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1926953537, now seen corresponding path program 1 times [2022-07-19 18:30:29,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:29,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542375064] [2022-07-19 18:30:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:29,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:29,173 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 18:30:29,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:29,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542375064] [2022-07-19 18:30:29,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542375064] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:29,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:29,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:29,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112677400] [2022-07-19 18:30:29,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:29,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:29,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:29,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:29,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:29,175 INFO L87 Difference]: Start difference. First operand 998 states and 1314 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:30,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:30,651 INFO L93 Difference]: Finished difference Result 1917 states and 2579 transitions. [2022-07-19 18:30:30,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:30,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:30,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:30,653 INFO L225 Difference]: With dead ends: 1917 [2022-07-19 18:30:30,653 INFO L226 Difference]: Without dead ends: 1768 [2022-07-19 18:30:30,654 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 18:30:30,654 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 4113 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:30,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 3280 Invalid, 2505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:30:30,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-19 18:30:30,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 998. [2022-07-19 18:30:30,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3452868852459017) internal successors, (1313), 997 states have internal predecessors, (1313), 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 18:30:30,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1313 transitions. [2022-07-19 18:30:30,838 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1313 transitions. Word has length 98 [2022-07-19 18:30:30,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:30,838 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1313 transitions. [2022-07-19 18:30:30,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:30,839 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1313 transitions. [2022-07-19 18:30:30,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:30,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:30,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:30,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-19 18:30:30,840 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:30,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:30,841 INFO L85 PathProgramCache]: Analyzing trace with hash -650592069, now seen corresponding path program 1 times [2022-07-19 18:30:30,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:30,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189585425] [2022-07-19 18:30:30,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:30,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:30,920 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 18:30:30,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:30,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189585425] [2022-07-19 18:30:30,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189585425] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:30,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:30,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:30,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031399860] [2022-07-19 18:30:30,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:30,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:30,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:30,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:30,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:30,922 INFO L87 Difference]: Start difference. First operand 998 states and 1313 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:31,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:31,958 INFO L93 Difference]: Finished difference Result 1977 states and 2665 transitions. [2022-07-19 18:30:31,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:31,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:31,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:31,960 INFO L225 Difference]: With dead ends: 1977 [2022-07-19 18:30:31,960 INFO L226 Difference]: Without dead ends: 1815 [2022-07-19 18:30:31,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:31,961 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2570 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2570 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:31,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2570 Valid, 2491 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 18:30:31,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-19 18:30:32,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-19 18:30:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3442622950819672) internal successors, (1312), 997 states have internal predecessors, (1312), 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 18:30:32,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1312 transitions. [2022-07-19 18:30:32,153 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1312 transitions. Word has length 98 [2022-07-19 18:30:32,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:32,153 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1312 transitions. [2022-07-19 18:30:32,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1312 transitions. [2022-07-19 18:30:32,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:32,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:32,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:32,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-19 18:30:32,155 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:32,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:32,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1680548315, now seen corresponding path program 1 times [2022-07-19 18:30:32,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:32,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836671457] [2022-07-19 18:30:32,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:32,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:32,235 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 18:30:32,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:32,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836671457] [2022-07-19 18:30:32,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836671457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:32,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:32,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:32,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103299326] [2022-07-19 18:30:32,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:32,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:32,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:32,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:32,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:32,237 INFO L87 Difference]: Start difference. First operand 998 states and 1312 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:33,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:33,284 INFO L93 Difference]: Finished difference Result 1982 states and 2668 transitions. [2022-07-19 18:30:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:33,285 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:33,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:33,287 INFO L225 Difference]: With dead ends: 1982 [2022-07-19 18:30:33,287 INFO L226 Difference]: Without dead ends: 1815 [2022-07-19 18:30:33,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:33,288 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4908 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4908 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:33,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4908 Valid, 2295 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 18:30:33,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-19 18:30:33,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-19 18:30:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3432377049180328) internal successors, (1311), 997 states have internal predecessors, (1311), 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 18:30:33,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1311 transitions. [2022-07-19 18:30:33,495 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1311 transitions. Word has length 98 [2022-07-19 18:30:33,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:33,495 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1311 transitions. [2022-07-19 18:30:33,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:33,496 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1311 transitions. [2022-07-19 18:30:33,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:33,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:33,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:33,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-19 18:30:33,497 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:33,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:33,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1839474971, now seen corresponding path program 1 times [2022-07-19 18:30:33,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:33,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986042845] [2022-07-19 18:30:33,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:33,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:33,572 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 18:30:33,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:33,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986042845] [2022-07-19 18:30:33,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986042845] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:33,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:33,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:33,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192384202] [2022-07-19 18:30:33,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:33,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:33,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:33,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:33,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:33,574 INFO L87 Difference]: Start difference. First operand 998 states and 1311 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:34,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:34,851 INFO L93 Difference]: Finished difference Result 1922 states and 2581 transitions. [2022-07-19 18:30:34,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:34,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:34,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:34,853 INFO L225 Difference]: With dead ends: 1922 [2022-07-19 18:30:34,853 INFO L226 Difference]: Without dead ends: 1768 [2022-07-19 18:30:34,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:34,864 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 2423 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:34,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2423 Valid, 2742 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:34,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-19 18:30:35,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 998. [2022-07-19 18:30:35,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3422131147540983) internal successors, (1310), 997 states have internal predecessors, (1310), 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 18:30:35,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1310 transitions. [2022-07-19 18:30:35,061 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1310 transitions. Word has length 98 [2022-07-19 18:30:35,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:35,061 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1310 transitions. [2022-07-19 18:30:35,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:35,061 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1310 transitions. [2022-07-19 18:30:35,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:35,063 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:35,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:35,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-19 18:30:35,063 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:35,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:35,065 INFO L85 PathProgramCache]: Analyzing trace with hash -218628127, now seen corresponding path program 1 times [2022-07-19 18:30:35,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:35,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109637571] [2022-07-19 18:30:35,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:35,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:35,177 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 18:30:35,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:35,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109637571] [2022-07-19 18:30:35,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109637571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:35,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:35,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:35,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300525157] [2022-07-19 18:30:35,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:35,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:35,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:35,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:35,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:35,182 INFO L87 Difference]: Start difference. First operand 998 states and 1310 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:36,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:36,445 INFO L93 Difference]: Finished difference Result 1919 states and 2577 transitions. [2022-07-19 18:30:36,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:36,445 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:36,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:36,447 INFO L225 Difference]: With dead ends: 1919 [2022-07-19 18:30:36,447 INFO L226 Difference]: Without dead ends: 1768 [2022-07-19 18:30:36,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:36,448 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 2418 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:36,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2418 Valid, 2742 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:36,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-19 18:30:36,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 998. [2022-07-19 18:30:36,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.341188524590164) internal successors, (1309), 997 states have internal predecessors, (1309), 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 18:30:36,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1309 transitions. [2022-07-19 18:30:36,644 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1309 transitions. Word has length 98 [2022-07-19 18:30:36,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:36,645 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1309 transitions. [2022-07-19 18:30:36,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1309 transitions. [2022-07-19 18:30:36,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:36,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:36,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:36,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-19 18:30:36,646 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:36,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:36,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1160598977, now seen corresponding path program 1 times [2022-07-19 18:30:36,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:36,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865438792] [2022-07-19 18:30:36,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:36,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:36,741 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 18:30:36,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:36,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865438792] [2022-07-19 18:30:36,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865438792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:36,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:36,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:36,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774227951] [2022-07-19 18:30:36,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:36,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:36,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:36,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:36,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:36,743 INFO L87 Difference]: Start difference. First operand 998 states and 1309 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:38,012 INFO L93 Difference]: Finished difference Result 1977 states and 2657 transitions. [2022-07-19 18:30:38,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:38,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:38,014 INFO L225 Difference]: With dead ends: 1977 [2022-07-19 18:30:38,014 INFO L226 Difference]: Without dead ends: 1815 [2022-07-19 18:30:38,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:38,015 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3849 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3849 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:38,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3849 Valid, 2488 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:38,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-19 18:30:38,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-19 18:30:38,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3401639344262295) internal successors, (1308), 997 states have internal predecessors, (1308), 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 18:30:38,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1308 transitions. [2022-07-19 18:30:38,213 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1308 transitions. Word has length 98 [2022-07-19 18:30:38,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:38,213 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1308 transitions. [2022-07-19 18:30:38,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:38,214 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1308 transitions. [2022-07-19 18:30:38,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:30:38,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:38,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:38,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-19 18:30:38,215 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:38,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:38,216 INFO L85 PathProgramCache]: Analyzing trace with hash -542784863, now seen corresponding path program 1 times [2022-07-19 18:30:38,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:38,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289496101] [2022-07-19 18:30:38,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:38,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:38,291 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 18:30:38,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:38,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289496101] [2022-07-19 18:30:38,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289496101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:38,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:38,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:38,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807525455] [2022-07-19 18:30:38,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:38,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:38,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:38,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:38,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:38,293 INFO L87 Difference]: Start difference. First operand 998 states and 1308 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:39,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:39,563 INFO L93 Difference]: Finished difference Result 1973 states and 2652 transitions. [2022-07-19 18:30:39,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:39,564 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-19 18:30:39,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:39,566 INFO L225 Difference]: With dead ends: 1973 [2022-07-19 18:30:39,566 INFO L226 Difference]: Without dead ends: 1815 [2022-07-19 18:30:39,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:39,567 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3016 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3016 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:39,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3016 Valid, 2495 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 18:30:39,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-19 18:30:39,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-19 18:30:39,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.339139344262295) internal successors, (1307), 997 states have internal predecessors, (1307), 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 18:30:39,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1307 transitions. [2022-07-19 18:30:39,778 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1307 transitions. Word has length 98 [2022-07-19 18:30:39,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:39,778 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1307 transitions. [2022-07-19 18:30:39,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 18:30:39,778 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1307 transitions. [2022-07-19 18:30:39,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:30:39,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:39,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:39,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-19 18:30:39,780 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:39,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:39,780 INFO L85 PathProgramCache]: Analyzing trace with hash -308070434, now seen corresponding path program 1 times [2022-07-19 18:30:39,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:39,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901312077] [2022-07-19 18:30:39,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:39,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:39,980 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 18:30:39,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:39,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901312077] [2022-07-19 18:30:39,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901312077] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:39,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:39,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:30:39,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160995777] [2022-07-19 18:30:39,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:39,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:30:39,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:39,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:30:39,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:30:39,982 INFO L87 Difference]: Start difference. First operand 998 states and 1307 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 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 18:30:42,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:42,924 INFO L93 Difference]: Finished difference Result 3525 states and 4910 transitions. [2022-07-19 18:30:42,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:30:42,924 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 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 99 [2022-07-19 18:30:42,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:42,928 INFO L225 Difference]: With dead ends: 3525 [2022-07-19 18:30:42,928 INFO L226 Difference]: Without dead ends: 3233 [2022-07-19 18:30:42,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:30:42,929 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 9097 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 2792 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9097 SdHoareTripleChecker+Valid, 4030 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 2792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:42,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9097 Valid, 4030 Invalid, 3426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 2792 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:30:42,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2022-07-19 18:30:43,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 1008. [2022-07-19 18:30:43,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 986 states have (on average 1.3356997971602433) internal successors, (1317), 1007 states have internal predecessors, (1317), 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 18:30:43,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1317 transitions. [2022-07-19 18:30:43,143 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1317 transitions. Word has length 99 [2022-07-19 18:30:43,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:43,144 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1317 transitions. [2022-07-19 18:30:43,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 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 18:30:43,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1317 transitions. [2022-07-19 18:30:43,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:30:43,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:43,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:43,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-19 18:30:43,145 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:43,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:43,146 INFO L85 PathProgramCache]: Analyzing trace with hash 234210846, now seen corresponding path program 1 times [2022-07-19 18:30:43,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:43,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284689647] [2022-07-19 18:30:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:43,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:43,223 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 18:30:43,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:43,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284689647] [2022-07-19 18:30:43,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284689647] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:43,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:43,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:43,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773851597] [2022-07-19 18:30:43,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:43,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:43,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:43,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:43,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:43,225 INFO L87 Difference]: Start difference. First operand 1008 states and 1317 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:44,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:44,498 INFO L93 Difference]: Finished difference Result 2000 states and 2681 transitions. [2022-07-19 18:30:44,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:44,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-19 18:30:44,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:44,501 INFO L225 Difference]: With dead ends: 2000 [2022-07-19 18:30:44,501 INFO L226 Difference]: Without dead ends: 1825 [2022-07-19 18:30:44,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:44,502 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4328 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4328 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:44,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4328 Valid, 2295 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 18:30:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2022-07-19 18:30:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1008. [2022-07-19 18:30:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 986 states have (on average 1.3336713995943206) internal successors, (1315), 1007 states have internal predecessors, (1315), 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 18:30:44,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1315 transitions. [2022-07-19 18:30:44,732 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1315 transitions. Word has length 99 [2022-07-19 18:30:44,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:44,742 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1315 transitions. [2022-07-19 18:30:44,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:44,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1315 transitions. [2022-07-19 18:30:44,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:30:44,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:44,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:44,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-19 18:30:44,744 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:44,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:44,745 INFO L85 PathProgramCache]: Analyzing trace with hash -118560034, now seen corresponding path program 1 times [2022-07-19 18:30:44,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:44,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699748172] [2022-07-19 18:30:44,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:44,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:44,826 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 18:30:44,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:44,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699748172] [2022-07-19 18:30:44,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699748172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:44,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:44,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:44,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656884867] [2022-07-19 18:30:44,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:44,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:44,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:44,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:44,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:44,828 INFO L87 Difference]: Start difference. First operand 1008 states and 1315 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:46,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:46,245 INFO L93 Difference]: Finished difference Result 1936 states and 2590 transitions. [2022-07-19 18:30:46,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:46,245 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-19 18:30:46,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:46,247 INFO L225 Difference]: With dead ends: 1936 [2022-07-19 18:30:46,247 INFO L226 Difference]: Without dead ends: 1778 [2022-07-19 18:30:46,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:46,248 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 3335 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:46,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 2875 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:46,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2022-07-19 18:30:46,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1008. [2022-07-19 18:30:46,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 986 states have (on average 1.3316430020283976) internal successors, (1313), 1007 states have internal predecessors, (1313), 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 18:30:46,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1313 transitions. [2022-07-19 18:30:46,466 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1313 transitions. Word has length 99 [2022-07-19 18:30:46,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:46,467 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1313 transitions. [2022-07-19 18:30:46,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:46,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1313 transitions. [2022-07-19 18:30:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:30:46,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:46,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:46,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-19 18:30:46,469 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:46,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:46,469 INFO L85 PathProgramCache]: Analyzing trace with hash -271572002, now seen corresponding path program 1 times [2022-07-19 18:30:46,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:46,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956545033] [2022-07-19 18:30:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:46,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:46,548 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 18:30:46,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:46,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956545033] [2022-07-19 18:30:46,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956545033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:46,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:46,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:46,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272346198] [2022-07-19 18:30:46,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:46,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:46,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:46,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:46,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:46,550 INFO L87 Difference]: Start difference. First operand 1008 states and 1313 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:47,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:47,918 INFO L93 Difference]: Finished difference Result 1999 states and 2673 transitions. [2022-07-19 18:30:47,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:47,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-19 18:30:47,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:47,921 INFO L225 Difference]: With dead ends: 1999 [2022-07-19 18:30:47,921 INFO L226 Difference]: Without dead ends: 1825 [2022-07-19 18:30:47,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:30:47,922 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3010 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3010 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:47,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3010 Valid, 2491 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:47,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2022-07-19 18:30:48,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1008. [2022-07-19 18:30:48,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 986 states have (on average 1.3296146044624746) internal successors, (1311), 1007 states have internal predecessors, (1311), 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 18:30:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1311 transitions. [2022-07-19 18:30:48,152 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1311 transitions. Word has length 99 [2022-07-19 18:30:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:48,153 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1311 transitions. [2022-07-19 18:30:48,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1311 transitions. [2022-07-19 18:30:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:30:48,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:48,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:48,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-19 18:30:48,154 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:48,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:48,155 INFO L85 PathProgramCache]: Analyzing trace with hash -370973194, now seen corresponding path program 1 times [2022-07-19 18:30:48,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:48,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127243537] [2022-07-19 18:30:48,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:48,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:48,250 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 18:30:48,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:48,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127243537] [2022-07-19 18:30:48,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127243537] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:48,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:48,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:48,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93777810] [2022-07-19 18:30:48,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:48,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:48,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:48,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:48,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:48,252 INFO L87 Difference]: Start difference. First operand 1008 states and 1311 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:49,709 INFO L93 Difference]: Finished difference Result 1926 states and 2575 transitions. [2022-07-19 18:30:49,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:49,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-19 18:30:49,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:49,711 INFO L225 Difference]: With dead ends: 1926 [2022-07-19 18:30:49,711 INFO L226 Difference]: Without dead ends: 1776 [2022-07-19 18:30:49,712 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 18:30:49,712 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 3947 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 2416 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:49,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3947 Valid, 3557 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2416 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:49,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2022-07-19 18:30:49,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1006. [2022-07-19 18:30:49,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 984 states have (on average 1.3282520325203253) internal successors, (1307), 1005 states have internal predecessors, (1307), 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 18:30:49,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1307 transitions. [2022-07-19 18:30:49,949 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1307 transitions. Word has length 99 [2022-07-19 18:30:49,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:49,949 INFO L495 AbstractCegarLoop]: Abstraction has 1006 states and 1307 transitions. [2022-07-19 18:30:49,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:49,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1307 transitions. [2022-07-19 18:30:49,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:30:49,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:49,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:49,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-19 18:30:49,951 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:49,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:49,951 INFO L85 PathProgramCache]: Analyzing trace with hash 193533868, now seen corresponding path program 1 times [2022-07-19 18:30:49,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:49,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121676438] [2022-07-19 18:30:49,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:49,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:50,047 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 18:30:50,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:50,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121676438] [2022-07-19 18:30:50,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121676438] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:50,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:50,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:50,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544465830] [2022-07-19 18:30:50,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:50,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:50,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:50,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:50,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:50,049 INFO L87 Difference]: Start difference. First operand 1006 states and 1307 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:51,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:51,666 INFO L93 Difference]: Finished difference Result 1924 states and 2571 transitions. [2022-07-19 18:30:51,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:51,666 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-19 18:30:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:51,668 INFO L225 Difference]: With dead ends: 1924 [2022-07-19 18:30:51,668 INFO L226 Difference]: Without dead ends: 1775 [2022-07-19 18:30:51,670 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 18:30:51,671 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 3830 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3830 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:51,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3830 Valid, 3823 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:30:51,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2022-07-19 18:30:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1005. [2022-07-19 18:30:51,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 983 states have (on average 1.3275686673448626) internal successors, (1305), 1004 states have internal predecessors, (1305), 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 18:30:51,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1305 transitions. [2022-07-19 18:30:51,931 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1305 transitions. Word has length 99 [2022-07-19 18:30:51,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:51,932 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1305 transitions. [2022-07-19 18:30:51,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:51,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1305 transitions. [2022-07-19 18:30:51,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:30:51,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:51,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:51,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-19 18:30:51,936 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:51,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:51,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1049556564, now seen corresponding path program 1 times [2022-07-19 18:30:51,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:51,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387868581] [2022-07-19 18:30:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:51,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:52,025 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 18:30:52,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:52,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387868581] [2022-07-19 18:30:52,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387868581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:52,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:52,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:52,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068711582] [2022-07-19 18:30:52,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:52,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:52,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:52,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:52,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:52,027 INFO L87 Difference]: Start difference. First operand 1005 states and 1305 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:53,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:53,474 INFO L93 Difference]: Finished difference Result 1922 states and 2568 transitions. [2022-07-19 18:30:53,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:53,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-19 18:30:53,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:53,477 INFO L225 Difference]: With dead ends: 1922 [2022-07-19 18:30:53,477 INFO L226 Difference]: Without dead ends: 1773 [2022-07-19 18:30:53,478 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 18:30:53,478 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 4129 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:53,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4129 Valid, 3084 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:30:53,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2022-07-19 18:30:53,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1004. [2022-07-19 18:30:53,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 982 states have (on average 1.3268839103869654) internal successors, (1303), 1003 states have internal predecessors, (1303), 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 18:30:53,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1303 transitions. [2022-07-19 18:30:53,738 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1303 transitions. Word has length 99 [2022-07-19 18:30:53,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:53,738 INFO L495 AbstractCegarLoop]: Abstraction has 1004 states and 1303 transitions. [2022-07-19 18:30:53,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:53,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1303 transitions. [2022-07-19 18:30:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:30:53,740 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:53,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:53,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-19 18:30:53,740 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:53,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:53,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1664921314, now seen corresponding path program 1 times [2022-07-19 18:30:53,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:53,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186877938] [2022-07-19 18:30:53,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:53,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:53,995 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 18:30:53,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:53,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186877938] [2022-07-19 18:30:53,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186877938] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:53,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:53,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 18:30:53,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234257339] [2022-07-19 18:30:53,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:53,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:30:53,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:53,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:30:53,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:30:53,997 INFO L87 Difference]: Start difference. First operand 1004 states and 1303 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 18:30:56,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:56,723 INFO L93 Difference]: Finished difference Result 3750 states and 5132 transitions. [2022-07-19 18:30:56,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 18:30:56,723 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 99 [2022-07-19 18:30:56,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:56,727 INFO L225 Difference]: With dead ends: 3750 [2022-07-19 18:30:56,727 INFO L226 Difference]: Without dead ends: 3584 [2022-07-19 18:30:56,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:30:56,728 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 5317 mSDsluCounter, 9368 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5317 SdHoareTripleChecker+Valid, 10522 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:56,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5317 Valid, 10522 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 18:30:56,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2022-07-19 18:30:57,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 986. [2022-07-19 18:30:57,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3257261410788381) internal successors, (1278), 985 states have internal predecessors, (1278), 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 18:30:57,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1278 transitions. [2022-07-19 18:30:57,008 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1278 transitions. Word has length 99 [2022-07-19 18:30:57,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:57,008 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1278 transitions. [2022-07-19 18:30:57,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 18:30:57,009 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1278 transitions. [2022-07-19 18:30:57,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:30:57,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:57,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:57,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-19 18:30:57,010 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:57,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:57,010 INFO L85 PathProgramCache]: Analyzing trace with hash 760861535, now seen corresponding path program 1 times [2022-07-19 18:30:57,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:57,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516533122] [2022-07-19 18:30:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:57,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:57,096 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 18:30:57,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:57,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516533122] [2022-07-19 18:30:57,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516533122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:57,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:57,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:57,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329546244] [2022-07-19 18:30:57,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:57,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:57,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:57,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:57,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:57,098 INFO L87 Difference]: Start difference. First operand 986 states and 1278 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:58,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:30:58,730 INFO L93 Difference]: Finished difference Result 2063 states and 2780 transitions. [2022-07-19 18:30:58,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:30:58,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-19 18:30:58,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:30:58,732 INFO L225 Difference]: With dead ends: 2063 [2022-07-19 18:30:58,732 INFO L226 Difference]: Without dead ends: 1843 [2022-07-19 18:30:58,733 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 18:30:58,734 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 3110 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3110 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:30:58,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3110 Valid, 3375 Invalid, 2328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:30:58,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2022-07-19 18:30:59,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 981. [2022-07-19 18:30:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.3263816475495307) internal successors, (1272), 980 states have internal predecessors, (1272), 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 18:30:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1272 transitions. [2022-07-19 18:30:59,018 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1272 transitions. Word has length 99 [2022-07-19 18:30:59,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:30:59,020 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1272 transitions. [2022-07-19 18:30:59,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 18:30:59,020 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1272 transitions. [2022-07-19 18:30:59,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:30:59,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:30:59,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:30:59,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-19 18:30:59,025 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:30:59,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:30:59,025 INFO L85 PathProgramCache]: Analyzing trace with hash 193950012, now seen corresponding path program 1 times [2022-07-19 18:30:59,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:30:59,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106885913] [2022-07-19 18:30:59,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:30:59,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:30:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:30:59,213 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 18:30:59,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:30:59,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106885913] [2022-07-19 18:30:59,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106885913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:30:59,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:30:59,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:30:59,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033760160] [2022-07-19 18:30:59,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:30:59,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:30:59,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:30:59,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:30:59,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:30:59,215 INFO L87 Difference]: Start difference. First operand 981 states and 1272 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:00,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:00,975 INFO L93 Difference]: Finished difference Result 2033 states and 2730 transitions. [2022-07-19 18:31:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:00,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:00,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:00,977 INFO L225 Difference]: With dead ends: 2033 [2022-07-19 18:31:00,977 INFO L226 Difference]: Without dead ends: 1822 [2022-07-19 18:31:00,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:31:00,979 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 4446 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4446 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:00,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4446 Valid, 2969 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:31:00,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-07-19 18:31:01,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 981. [2022-07-19 18:31:01,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.32429614181439) internal successors, (1270), 980 states have internal predecessors, (1270), 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 18:31:01,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1270 transitions. [2022-07-19 18:31:01,284 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1270 transitions. Word has length 100 [2022-07-19 18:31:01,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:01,285 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1270 transitions. [2022-07-19 18:31:01,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:01,285 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1270 transitions. [2022-07-19 18:31:01,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:01,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:01,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:01,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-19 18:31:01,287 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:01,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:01,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1060069596, now seen corresponding path program 1 times [2022-07-19 18:31:01,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:01,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312340547] [2022-07-19 18:31:01,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:01,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:01,378 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 18:31:01,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:01,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312340547] [2022-07-19 18:31:01,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312340547] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:01,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:01,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:01,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601494329] [2022-07-19 18:31:01,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:01,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:01,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:01,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:01,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:01,380 INFO L87 Difference]: Start difference. First operand 981 states and 1270 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:03,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:03,113 INFO L93 Difference]: Finished difference Result 1895 states and 2527 transitions. [2022-07-19 18:31:03,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:03,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:03,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:03,115 INFO L225 Difference]: With dead ends: 1895 [2022-07-19 18:31:03,115 INFO L226 Difference]: Without dead ends: 1741 [2022-07-19 18:31:03,116 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 18:31:03,116 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 3820 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3820 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:03,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3820 Valid, 3452 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:31:03,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2022-07-19 18:31:03,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 981. [2022-07-19 18:31:03,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.3222106360792492) internal successors, (1268), 980 states have internal predecessors, (1268), 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 18:31:03,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1268 transitions. [2022-07-19 18:31:03,409 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1268 transitions. Word has length 100 [2022-07-19 18:31:03,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:03,410 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1268 transitions. [2022-07-19 18:31:03,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:03,410 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1268 transitions. [2022-07-19 18:31:03,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:03,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:03,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:03,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-19 18:31:03,411 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:03,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:03,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1372751492, now seen corresponding path program 1 times [2022-07-19 18:31:03,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:03,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492629848] [2022-07-19 18:31:03,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:03,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:03,548 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 18:31:03,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:03,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492629848] [2022-07-19 18:31:03,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492629848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:03,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:03,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:31:03,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586156498] [2022-07-19 18:31:03,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:03,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:31:03,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:03,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:31:03,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:31:03,550 INFO L87 Difference]: Start difference. First operand 981 states and 1268 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 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 18:31:06,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:06,761 INFO L93 Difference]: Finished difference Result 3132 states and 4322 transitions. [2022-07-19 18:31:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:31:06,761 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:06,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:06,764 INFO L225 Difference]: With dead ends: 3132 [2022-07-19 18:31:06,764 INFO L226 Difference]: Without dead ends: 2935 [2022-07-19 18:31:06,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:31:06,766 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 7067 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7067 SdHoareTripleChecker+Valid, 3715 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:06,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7067 Valid, 3715 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 2544 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 18:31:06,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2022-07-19 18:31:07,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 991. [2022-07-19 18:31:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3188854489164086) internal successors, (1278), 990 states have internal predecessors, (1278), 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 18:31:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1278 transitions. [2022-07-19 18:31:07,108 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1278 transitions. Word has length 100 [2022-07-19 18:31:07,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:07,108 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1278 transitions. [2022-07-19 18:31:07,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 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 18:31:07,108 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1278 transitions. [2022-07-19 18:31:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:07,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:07,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:07,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-19 18:31:07,110 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:07,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:07,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2105960988, now seen corresponding path program 1 times [2022-07-19 18:31:07,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:07,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224398336] [2022-07-19 18:31:07,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:07,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:07,215 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 18:31:07,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:07,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224398336] [2022-07-19 18:31:07,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224398336] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:07,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:07,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:07,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234677188] [2022-07-19 18:31:07,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:07,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:07,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:07,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:07,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:07,217 INFO L87 Difference]: Start difference. First operand 991 states and 1278 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:09,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:09,041 INFO L93 Difference]: Finished difference Result 1905 states and 2535 transitions. [2022-07-19 18:31:09,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:09,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:09,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:09,044 INFO L225 Difference]: With dead ends: 1905 [2022-07-19 18:31:09,044 INFO L226 Difference]: Without dead ends: 1751 [2022-07-19 18:31:09,045 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 18:31:09,045 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 3718 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 2483 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3718 SdHoareTripleChecker+Valid, 3674 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:09,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3718 Valid, 3674 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2483 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:09,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-07-19 18:31:09,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 991. [2022-07-19 18:31:09,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3168214654282766) internal successors, (1276), 990 states have internal predecessors, (1276), 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 18:31:09,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1276 transitions. [2022-07-19 18:31:09,374 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1276 transitions. Word has length 100 [2022-07-19 18:31:09,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:09,374 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1276 transitions. [2022-07-19 18:31:09,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:09,375 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1276 transitions. [2022-07-19 18:31:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:09,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:09,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:09,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-19 18:31:09,376 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:09,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:09,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2115298916, now seen corresponding path program 1 times [2022-07-19 18:31:09,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:09,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759533257] [2022-07-19 18:31:09,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:09,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:09,467 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 18:31:09,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:09,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759533257] [2022-07-19 18:31:09,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759533257] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:09,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:09,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:09,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448559967] [2022-07-19 18:31:09,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:09,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:09,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:09,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:09,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:09,469 INFO L87 Difference]: Start difference. First operand 991 states and 1276 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:11,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:11,128 INFO L93 Difference]: Finished difference Result 2021 states and 2704 transitions. [2022-07-19 18:31:11,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:11,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:11,131 INFO L225 Difference]: With dead ends: 2021 [2022-07-19 18:31:11,131 INFO L226 Difference]: Without dead ends: 1822 [2022-07-19 18:31:11,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:31:11,132 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 4789 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4789 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:11,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4789 Valid, 2872 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:11,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-07-19 18:31:11,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 991. [2022-07-19 18:31:11,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3147574819401444) internal successors, (1274), 990 states have internal predecessors, (1274), 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 18:31:11,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1274 transitions. [2022-07-19 18:31:11,468 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1274 transitions. Word has length 100 [2022-07-19 18:31:11,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:11,469 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1274 transitions. [2022-07-19 18:31:11,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:11,469 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1274 transitions. [2022-07-19 18:31:11,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:11,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:11,470 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, 1, 1, 1, 1, 1, 1, 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 18:31:11,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-19 18:31:11,470 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:11,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:11,471 INFO L85 PathProgramCache]: Analyzing trace with hash 361781404, now seen corresponding path program 1 times [2022-07-19 18:31:11,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:11,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552914485] [2022-07-19 18:31:11,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:11,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:11,584 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 18:31:11,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:11,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552914485] [2022-07-19 18:31:11,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552914485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:11,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:11,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:11,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109540926] [2022-07-19 18:31:11,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:11,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:11,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:11,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:11,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:11,586 INFO L87 Difference]: Start difference. First operand 991 states and 1274 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:13,299 INFO L93 Difference]: Finished difference Result 1905 states and 2531 transitions. [2022-07-19 18:31:13,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:13,299 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:13,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:13,301 INFO L225 Difference]: With dead ends: 1905 [2022-07-19 18:31:13,301 INFO L226 Difference]: Without dead ends: 1751 [2022-07-19 18:31:13,302 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 18:31:13,302 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 3062 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 2058 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3062 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 2058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:13,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3062 Valid, 3019 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 2058 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:13,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-07-19 18:31:13,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 991. [2022-07-19 18:31:13,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3126934984520124) internal successors, (1272), 990 states have internal predecessors, (1272), 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 18:31:13,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1272 transitions. [2022-07-19 18:31:13,640 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1272 transitions. Word has length 100 [2022-07-19 18:31:13,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:13,640 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1272 transitions. [2022-07-19 18:31:13,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:13,640 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1272 transitions. [2022-07-19 18:31:13,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:13,641 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:13,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:13,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-19 18:31:13,642 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:13,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:13,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1379458134, now seen corresponding path program 1 times [2022-07-19 18:31:13,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:13,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645511622] [2022-07-19 18:31:13,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:13,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:13,720 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 18:31:13,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:13,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645511622] [2022-07-19 18:31:13,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645511622] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:13,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:13,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:13,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219884121] [2022-07-19 18:31:13,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:13,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:13,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:13,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:13,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:13,722 INFO L87 Difference]: Start difference. First operand 991 states and 1272 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:15,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:15,441 INFO L93 Difference]: Finished difference Result 2145 states and 2872 transitions. [2022-07-19 18:31:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:15,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:15,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:15,443 INFO L225 Difference]: With dead ends: 2145 [2022-07-19 18:31:15,443 INFO L226 Difference]: Without dead ends: 1853 [2022-07-19 18:31:15,444 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 18:31:15,444 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 3080 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3080 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 2236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:15,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3080 Valid, 3415 Invalid, 2236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:31:15,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2022-07-19 18:31:15,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 981. [2022-07-19 18:31:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.313868613138686) internal successors, (1260), 980 states have internal predecessors, (1260), 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 18:31:15,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1260 transitions. [2022-07-19 18:31:15,776 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1260 transitions. Word has length 100 [2022-07-19 18:31:15,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:15,776 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1260 transitions. [2022-07-19 18:31:15,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1260 transitions. [2022-07-19 18:31:15,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:15,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:15,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:15,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-19 18:31:15,778 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:15,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:15,778 INFO L85 PathProgramCache]: Analyzing trace with hash -584559812, now seen corresponding path program 1 times [2022-07-19 18:31:15,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:15,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112109791] [2022-07-19 18:31:15,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:15,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:15,929 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 18:31:15,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:15,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112109791] [2022-07-19 18:31:15,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112109791] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:15,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:15,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:31:15,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452808278] [2022-07-19 18:31:15,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:15,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:31:15,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:15,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:31:15,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:31:15,932 INFO L87 Difference]: Start difference. First operand 981 states and 1260 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 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 18:31:19,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:19,396 INFO L93 Difference]: Finished difference Result 3082 states and 4254 transitions. [2022-07-19 18:31:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:31:19,397 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:19,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:19,399 INFO L225 Difference]: With dead ends: 3082 [2022-07-19 18:31:19,399 INFO L226 Difference]: Without dead ends: 2905 [2022-07-19 18:31:19,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:31:19,400 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 6759 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6759 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:19,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6759 Valid, 3856 Invalid, 3133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 18:31:19,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2022-07-19 18:31:19,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 986. [2022-07-19 18:31:19,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.312240663900415) internal successors, (1265), 985 states have internal predecessors, (1265), 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 18:31:19,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1265 transitions. [2022-07-19 18:31:19,761 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1265 transitions. Word has length 100 [2022-07-19 18:31:19,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:19,761 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1265 transitions. [2022-07-19 18:31:19,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 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 18:31:19,762 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1265 transitions. [2022-07-19 18:31:19,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:19,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:19,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:19,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-19 18:31:19,763 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:19,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:19,763 INFO L85 PathProgramCache]: Analyzing trace with hash 930233820, now seen corresponding path program 1 times [2022-07-19 18:31:19,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:19,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322146458] [2022-07-19 18:31:19,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:19,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:19,862 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 18:31:19,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:19,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322146458] [2022-07-19 18:31:19,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322146458] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:19,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:19,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:19,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661527439] [2022-07-19 18:31:19,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:19,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:19,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:19,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:19,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:19,864 INFO L87 Difference]: Start difference. First operand 986 states and 1265 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:21,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:21,647 INFO L93 Difference]: Finished difference Result 1897 states and 2517 transitions. [2022-07-19 18:31:21,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:21,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:21,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:21,649 INFO L225 Difference]: With dead ends: 1897 [2022-07-19 18:31:21,649 INFO L226 Difference]: Without dead ends: 1746 [2022-07-19 18:31:21,650 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 18:31:21,650 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 2028 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 2334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:21,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2028 Valid, 3253 Invalid, 2334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:31:21,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-07-19 18:31:22,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 986. [2022-07-19 18:31:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3112033195020747) internal successors, (1264), 985 states have internal predecessors, (1264), 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 18:31:22,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1264 transitions. [2022-07-19 18:31:22,006 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1264 transitions. Word has length 100 [2022-07-19 18:31:22,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:22,006 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1264 transitions. [2022-07-19 18:31:22,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:22,006 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1264 transitions. [2022-07-19 18:31:22,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:22,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:22,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:22,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-19 18:31:22,008 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:22,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:22,009 INFO L85 PathProgramCache]: Analyzing trace with hash -946932452, now seen corresponding path program 1 times [2022-07-19 18:31:22,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:22,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600063322] [2022-07-19 18:31:22,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:22,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:22,096 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 18:31:22,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:22,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600063322] [2022-07-19 18:31:22,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600063322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:22,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:22,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:22,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393300640] [2022-07-19 18:31:22,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:22,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:22,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:22,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:22,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:22,099 INFO L87 Difference]: Start difference. First operand 986 states and 1264 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:23,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:23,912 INFO L93 Difference]: Finished difference Result 1983 states and 2652 transitions. [2022-07-19 18:31:23,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:23,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:23,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:23,914 INFO L225 Difference]: With dead ends: 1983 [2022-07-19 18:31:23,914 INFO L226 Difference]: Without dead ends: 1812 [2022-07-19 18:31:23,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:31:23,915 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 4184 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4184 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:23,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4184 Valid, 3182 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:23,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-19 18:31:24,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 986. [2022-07-19 18:31:24,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3101659751037344) internal successors, (1263), 985 states have internal predecessors, (1263), 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 18:31:24,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1263 transitions. [2022-07-19 18:31:24,278 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1263 transitions. Word has length 100 [2022-07-19 18:31:24,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:24,278 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1263 transitions. [2022-07-19 18:31:24,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1263 transitions. [2022-07-19 18:31:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:24,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:24,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:24,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-19 18:31:24,280 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:24,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:24,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1810001348, now seen corresponding path program 1 times [2022-07-19 18:31:24,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:24,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361714952] [2022-07-19 18:31:24,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:24,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:24,369 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 18:31:24,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:24,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361714952] [2022-07-19 18:31:24,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361714952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:24,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:24,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:24,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583856409] [2022-07-19 18:31:24,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:24,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:24,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:24,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:24,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:24,371 INFO L87 Difference]: Start difference. First operand 986 states and 1263 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:26,204 INFO L93 Difference]: Finished difference Result 1989 states and 2657 transitions. [2022-07-19 18:31:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:26,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:26,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:26,207 INFO L225 Difference]: With dead ends: 1989 [2022-07-19 18:31:26,207 INFO L226 Difference]: Without dead ends: 1812 [2022-07-19 18:31:26,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:31:26,208 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 4362 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:26,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4362 Valid, 3023 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:26,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-19 18:31:26,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 986. [2022-07-19 18:31:26,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3091286307053942) internal successors, (1262), 985 states have internal predecessors, (1262), 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 18:31:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1262 transitions. [2022-07-19 18:31:26,594 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1262 transitions. Word has length 100 [2022-07-19 18:31:26,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:26,594 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1262 transitions. [2022-07-19 18:31:26,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:26,594 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1262 transitions. [2022-07-19 18:31:26,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:26,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:26,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:26,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-19 18:31:26,596 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:26,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:26,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1688175644, now seen corresponding path program 1 times [2022-07-19 18:31:26,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:26,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052627105] [2022-07-19 18:31:26,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:26,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:26,678 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 18:31:26,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:26,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052627105] [2022-07-19 18:31:26,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052627105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:26,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:26,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:26,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951623835] [2022-07-19 18:31:26,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:26,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:26,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:26,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:26,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:26,680 INFO L87 Difference]: Start difference. First operand 986 states and 1262 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:28,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:28,507 INFO L93 Difference]: Finished difference Result 1897 states and 2513 transitions. [2022-07-19 18:31:28,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:28,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:28,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:28,510 INFO L225 Difference]: With dead ends: 1897 [2022-07-19 18:31:28,510 INFO L226 Difference]: Without dead ends: 1746 [2022-07-19 18:31:28,510 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 18:31:28,511 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 3054 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3054 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:28,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3054 Valid, 2994 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:31:28,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-07-19 18:31:28,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 986. [2022-07-19 18:31:28,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.308091286307054) internal successors, (1261), 985 states have internal predecessors, (1261), 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 18:31:28,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1261 transitions. [2022-07-19 18:31:28,880 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1261 transitions. Word has length 100 [2022-07-19 18:31:28,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:28,880 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1261 transitions. [2022-07-19 18:31:28,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:28,880 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1261 transitions. [2022-07-19 18:31:28,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:28,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:28,881 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, 1, 1, 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 18:31:28,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-19 18:31:28,882 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:28,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:28,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1307086337, now seen corresponding path program 1 times [2022-07-19 18:31:28,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:28,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99955964] [2022-07-19 18:31:28,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:28,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:29,029 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 18:31:29,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:29,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99955964] [2022-07-19 18:31:29,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99955964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:29,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:29,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:29,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270481909] [2022-07-19 18:31:29,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:29,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:29,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:29,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:29,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:29,031 INFO L87 Difference]: Start difference. First operand 986 states and 1261 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:30,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:30,995 INFO L93 Difference]: Finished difference Result 1895 states and 2509 transitions. [2022-07-19 18:31:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:30,996 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:30,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:30,998 INFO L225 Difference]: With dead ends: 1895 [2022-07-19 18:31:30,998 INFO L226 Difference]: Without dead ends: 1746 [2022-07-19 18:31:30,999 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 18:31:30,999 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 3780 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3780 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 2428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:30,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3780 Valid, 3453 Invalid, 2428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:31:31,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-07-19 18:31:31,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 986. [2022-07-19 18:31:31,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3070539419087137) internal successors, (1260), 985 states have internal predecessors, (1260), 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 18:31:31,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1260 transitions. [2022-07-19 18:31:31,369 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1260 transitions. Word has length 100 [2022-07-19 18:31:31,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:31,369 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1260 transitions. [2022-07-19 18:31:31,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:31,370 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1260 transitions. [2022-07-19 18:31:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:31,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:31,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:31,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-19 18:31:31,371 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:31,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:31,372 INFO L85 PathProgramCache]: Analyzing trace with hash 623323004, now seen corresponding path program 1 times [2022-07-19 18:31:31,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:31,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394000555] [2022-07-19 18:31:31,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:31,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:31,459 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 18:31:31,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:31,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394000555] [2022-07-19 18:31:31,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394000555] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:31,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:31,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:31,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004987238] [2022-07-19 18:31:31,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:31,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:31,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:31,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:31,461 INFO L87 Difference]: Start difference. First operand 986 states and 1260 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:33,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:33,341 INFO L93 Difference]: Finished difference Result 1897 states and 2510 transitions. [2022-07-19 18:31:33,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:33,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:33,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:33,343 INFO L225 Difference]: With dead ends: 1897 [2022-07-19 18:31:33,343 INFO L226 Difference]: Without dead ends: 1746 [2022-07-19 18:31:33,343 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 18:31:33,344 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 3776 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3776 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 2423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:33,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3776 Valid, 3452 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:31:33,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-07-19 18:31:33,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 986. [2022-07-19 18:31:33,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3060165975103735) internal successors, (1259), 985 states have internal predecessors, (1259), 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 18:31:33,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1259 transitions. [2022-07-19 18:31:33,705 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1259 transitions. Word has length 100 [2022-07-19 18:31:33,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:33,705 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1259 transitions. [2022-07-19 18:31:33,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 18:31:33,706 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1259 transitions. [2022-07-19 18:31:33,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:31:33,707 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:33,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:33,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-19 18:31:33,707 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash 964528316, now seen corresponding path program 1 times [2022-07-19 18:31:33,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:33,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629275627] [2022-07-19 18:31:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:33,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:33,838 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 18:31:33,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:33,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629275627] [2022-07-19 18:31:33,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629275627] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:33,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:33,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:31:33,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853990637] [2022-07-19 18:31:33,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:33,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:31:33,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:33,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:31:33,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:31:33,840 INFO L87 Difference]: Start difference. First operand 986 states and 1259 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 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 18:31:37,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:37,625 INFO L93 Difference]: Finished difference Result 3100 states and 4265 transitions. [2022-07-19 18:31:37,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:31:37,626 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 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 100 [2022-07-19 18:31:37,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:37,629 INFO L225 Difference]: With dead ends: 3100 [2022-07-19 18:31:37,629 INFO L226 Difference]: Without dead ends: 2914 [2022-07-19 18:31:37,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:31:37,630 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 5464 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 2926 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5464 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 2926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:37,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5464 Valid, 4197 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 2926 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:31:37,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2022-07-19 18:31:38,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 991. [2022-07-19 18:31:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3044375644994841) internal successors, (1264), 990 states have internal predecessors, (1264), 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 18:31:38,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1264 transitions. [2022-07-19 18:31:38,027 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1264 transitions. Word has length 100 [2022-07-19 18:31:38,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:38,027 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1264 transitions. [2022-07-19 18:31:38,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 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 18:31:38,028 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1264 transitions. [2022-07-19 18:31:38,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:31:38,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:38,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:38,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-19 18:31:38,030 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:38,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:38,031 INFO L85 PathProgramCache]: Analyzing trace with hash 205443651, now seen corresponding path program 1 times [2022-07-19 18:31:38,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:38,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825083742] [2022-07-19 18:31:38,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:38,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:38,173 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 18:31:38,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:38,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825083742] [2022-07-19 18:31:38,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825083742] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:38,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:38,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:38,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174230129] [2022-07-19 18:31:38,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:38,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:38,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:38,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:38,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:38,175 INFO L87 Difference]: Start difference. First operand 991 states and 1264 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:40,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:40,088 INFO L93 Difference]: Finished difference Result 1909 states and 2522 transitions. [2022-07-19 18:31:40,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:40,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 101 [2022-07-19 18:31:40,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:40,091 INFO L225 Difference]: With dead ends: 1909 [2022-07-19 18:31:40,091 INFO L226 Difference]: Without dead ends: 1751 [2022-07-19 18:31:40,092 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 18:31:40,107 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 3774 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3774 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:40,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3774 Valid, 3452 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:31:40,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-07-19 18:31:40,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 991. [2022-07-19 18:31:40,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.302373581011352) internal successors, (1262), 990 states have internal predecessors, (1262), 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 18:31:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1262 transitions. [2022-07-19 18:31:40,498 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1262 transitions. Word has length 101 [2022-07-19 18:31:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:40,498 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1262 transitions. [2022-07-19 18:31:40,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1262 transitions. [2022-07-19 18:31:40,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:31:40,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:40,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:40,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-19 18:31:40,500 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:40,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:40,500 INFO L85 PathProgramCache]: Analyzing trace with hash 558214531, now seen corresponding path program 1 times [2022-07-19 18:31:40,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:40,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856001436] [2022-07-19 18:31:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:40,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:40,626 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 18:31:40,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:40,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856001436] [2022-07-19 18:31:40,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856001436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:40,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:40,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:40,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333571509] [2022-07-19 18:31:40,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:40,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:40,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:40,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:40,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:40,628 INFO L87 Difference]: Start difference. First operand 991 states and 1262 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:42,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:42,408 INFO L93 Difference]: Finished difference Result 1983 states and 2622 transitions. [2022-07-19 18:31:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:42,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 101 [2022-07-19 18:31:42,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:42,411 INFO L225 Difference]: With dead ends: 1983 [2022-07-19 18:31:42,411 INFO L226 Difference]: Without dead ends: 1808 [2022-07-19 18:31:42,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:42,413 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 2309 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2309 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:42,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2309 Valid, 2784 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:42,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2022-07-19 18:31:42,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 991. [2022-07-19 18:31:42,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3003095975232197) internal successors, (1260), 990 states have internal predecessors, (1260), 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 18:31:42,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1260 transitions. [2022-07-19 18:31:42,819 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1260 transitions. Word has length 101 [2022-07-19 18:31:42,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:42,819 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1260 transitions. [2022-07-19 18:31:42,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1260 transitions. [2022-07-19 18:31:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:31:42,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:42,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:42,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-19 18:31:42,821 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:42,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:42,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1900513027, now seen corresponding path program 1 times [2022-07-19 18:31:42,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:42,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720517747] [2022-07-19 18:31:42,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:42,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:42,986 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 18:31:42,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:42,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720517747] [2022-07-19 18:31:42,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720517747] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:42,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:42,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:31:42,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519915439] [2022-07-19 18:31:42,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:42,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:31:42,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:42,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:31:42,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:31:42,991 INFO L87 Difference]: Start difference. First operand 991 states and 1260 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 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 18:31:46,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:46,852 INFO L93 Difference]: Finished difference Result 3166 states and 4344 transitions. [2022-07-19 18:31:46,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:31:46,853 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 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 101 [2022-07-19 18:31:46,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:46,856 INFO L225 Difference]: With dead ends: 3166 [2022-07-19 18:31:46,856 INFO L226 Difference]: Without dead ends: 2947 [2022-07-19 18:31:46,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:31:46,857 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 7652 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 2563 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7652 SdHoareTripleChecker+Valid, 3784 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 2563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:46,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7652 Valid, 3784 Invalid, 3201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 2563 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:31:46,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2022-07-19 18:31:47,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1001. [2022-07-19 18:31:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 979 states have (on average 1.2972420837589378) internal successors, (1270), 1000 states have internal predecessors, (1270), 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 18:31:47,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1270 transitions. [2022-07-19 18:31:47,254 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1270 transitions. Word has length 101 [2022-07-19 18:31:47,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:47,255 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1270 transitions. [2022-07-19 18:31:47,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 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 18:31:47,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1270 transitions. [2022-07-19 18:31:47,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:31:47,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:47,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:47,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-19 18:31:47,256 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:47,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:47,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1129794877, now seen corresponding path program 1 times [2022-07-19 18:31:47,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:47,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070115794] [2022-07-19 18:31:47,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:47,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:47,331 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 18:31:47,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:47,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070115794] [2022-07-19 18:31:47,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070115794] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:47,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:47,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:47,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617641867] [2022-07-19 18:31:47,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:47,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:47,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:47,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:47,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:47,333 INFO L87 Difference]: Start difference. First operand 1001 states and 1270 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:49,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:49,185 INFO L93 Difference]: Finished difference Result 1919 states and 2528 transitions. [2022-07-19 18:31:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:49,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 101 [2022-07-19 18:31:49,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:49,187 INFO L225 Difference]: With dead ends: 1919 [2022-07-19 18:31:49,187 INFO L226 Difference]: Without dead ends: 1761 [2022-07-19 18:31:49,188 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 18:31:49,194 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 3901 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3901 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:49,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3901 Valid, 3054 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-07-19 18:31:49,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1001. [2022-07-19 18:31:49,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 979 states have (on average 1.2951991828396323) internal successors, (1268), 1000 states have internal predecessors, (1268), 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 18:31:49,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1268 transitions. [2022-07-19 18:31:49,605 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1268 transitions. Word has length 101 [2022-07-19 18:31:49,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:49,605 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1268 transitions. [2022-07-19 18:31:49,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:49,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1268 transitions. [2022-07-19 18:31:49,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:31:49,606 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:49,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:49,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-07-19 18:31:49,607 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:49,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:49,607 INFO L85 PathProgramCache]: Analyzing trace with hash 2115351875, now seen corresponding path program 1 times [2022-07-19 18:31:49,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:49,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172231765] [2022-07-19 18:31:49,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:49,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:49,742 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 18:31:49,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:49,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172231765] [2022-07-19 18:31:49,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172231765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:49,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:49,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:49,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942902414] [2022-07-19 18:31:49,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:49,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:49,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:49,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:49,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:49,744 INFO L87 Difference]: Start difference. First operand 1001 states and 1268 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:51,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:51,616 INFO L93 Difference]: Finished difference Result 1767 states and 2298 transitions. [2022-07-19 18:31:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:51,617 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 101 [2022-07-19 18:31:51,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:51,619 INFO L225 Difference]: With dead ends: 1767 [2022-07-19 18:31:51,619 INFO L226 Difference]: Without dead ends: 1761 [2022-07-19 18:31:51,619 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 18:31:51,620 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 2489 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:51,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 3056 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:51,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-07-19 18:31:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1001. [2022-07-19 18:31:52,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 979 states have (on average 1.2931562819203268) internal successors, (1266), 1000 states have internal predecessors, (1266), 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 18:31:52,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1266 transitions. [2022-07-19 18:31:52,036 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1266 transitions. Word has length 101 [2022-07-19 18:31:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:52,036 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1266 transitions. [2022-07-19 18:31:52,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1266 transitions. [2022-07-19 18:31:52,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:31:52,037 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:52,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:52,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-19 18:31:52,038 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:52,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:52,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1375787382, now seen corresponding path program 1 times [2022-07-19 18:31:52,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:52,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116717177] [2022-07-19 18:31:52,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:52,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:52,133 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 18:31:52,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:52,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116717177] [2022-07-19 18:31:52,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116717177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:52,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:52,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:52,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352653301] [2022-07-19 18:31:52,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:52,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:52,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:52,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:52,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:52,135 INFO L87 Difference]: Start difference. First operand 1001 states and 1266 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:54,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:54,024 INFO L93 Difference]: Finished difference Result 2009 states and 2657 transitions. [2022-07-19 18:31:54,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:54,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 101 [2022-07-19 18:31:54,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:54,026 INFO L225 Difference]: With dead ends: 2009 [2022-07-19 18:31:54,026 INFO L226 Difference]: Without dead ends: 1812 [2022-07-19 18:31:54,027 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 18:31:54,027 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 2156 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:54,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 3115 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:54,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-19 18:31:54,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 991. [2022-07-19 18:31:54,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.2941176470588236) internal successors, (1254), 990 states have internal predecessors, (1254), 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 18:31:54,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1254 transitions. [2022-07-19 18:31:54,437 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1254 transitions. Word has length 101 [2022-07-19 18:31:54,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:54,437 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1254 transitions. [2022-07-19 18:31:54,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:54,437 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1254 transitions. [2022-07-19 18:31:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:31:54,438 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:54,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:54,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-19 18:31:54,439 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:54,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:54,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1041958772, now seen corresponding path program 1 times [2022-07-19 18:31:54,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:54,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102559171] [2022-07-19 18:31:54,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:54,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:54,514 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 18:31:54,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:54,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102559171] [2022-07-19 18:31:54,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102559171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:54,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:54,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:54,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617257862] [2022-07-19 18:31:54,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:54,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:54,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:54,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:54,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:54,516 INFO L87 Difference]: Start difference. First operand 991 states and 1254 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:56,409 INFO L93 Difference]: Finished difference Result 1989 states and 2632 transitions. [2022-07-19 18:31:56,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:56,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 101 [2022-07-19 18:31:56,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:56,411 INFO L225 Difference]: With dead ends: 1989 [2022-07-19 18:31:56,411 INFO L226 Difference]: Without dead ends: 1812 [2022-07-19 18:31:56,412 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 18:31:56,412 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 3086 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3086 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 2118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:56,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3086 Valid, 3279 Invalid, 2118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-19 18:31:56,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 986. [2022-07-19 18:31:56,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.2946058091286308) internal successors, (1248), 985 states have internal predecessors, (1248), 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 18:31:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1248 transitions. [2022-07-19 18:31:56,824 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1248 transitions. Word has length 101 [2022-07-19 18:31:56,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:56,824 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1248 transitions. [2022-07-19 18:31:56,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:56,824 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1248 transitions. [2022-07-19 18:31:56,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:31:56,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:56,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:56,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-19 18:31:56,826 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:56,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:56,826 INFO L85 PathProgramCache]: Analyzing trace with hash 650753541, now seen corresponding path program 1 times [2022-07-19 18:31:56,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:56,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142481399] [2022-07-19 18:31:56,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:56,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:56,903 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 18:31:56,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:56,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142481399] [2022-07-19 18:31:56,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142481399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:56,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:56,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:56,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321671755] [2022-07-19 18:31:56,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:56,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:56,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:56,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:56,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:56,905 INFO L87 Difference]: Start difference. First operand 986 states and 1248 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:58,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:58,806 INFO L93 Difference]: Finished difference Result 1998 states and 2641 transitions. [2022-07-19 18:31:58,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:58,806 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 101 [2022-07-19 18:31:58,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:58,808 INFO L225 Difference]: With dead ends: 1998 [2022-07-19 18:31:58,808 INFO L226 Difference]: Without dead ends: 1812 [2022-07-19 18:31:58,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:58,809 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 2637 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2637 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:58,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2637 Valid, 3387 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:58,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-19 18:31:59,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 981. [2022-07-19 18:31:59,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.2950990615224192) internal successors, (1242), 980 states have internal predecessors, (1242), 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 18:31:59,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1242 transitions. [2022-07-19 18:31:59,222 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1242 transitions. Word has length 101 [2022-07-19 18:31:59,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:59,222 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1242 transitions. [2022-07-19 18:31:59,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 18:31:59,223 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1242 transitions. [2022-07-19 18:31:59,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:31:59,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:59,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:59,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-19 18:31:59,224 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:59,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:59,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1048495107, now seen corresponding path program 1 times [2022-07-19 18:31:59,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:59,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115113512] [2022-07-19 18:31:59,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:59,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:59,358 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 18:31:59,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:59,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115113512] [2022-07-19 18:31:59,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115113512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:59,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:59,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:31:59,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777551737] [2022-07-19 18:31:59,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:59,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:31:59,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:59,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:31:59,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:31:59,360 INFO L87 Difference]: Start difference. First operand 981 states and 1242 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 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 18:32:02,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:02,969 INFO L93 Difference]: Finished difference Result 2645 states and 3577 transitions. [2022-07-19 18:32:02,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:02,969 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 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 101 [2022-07-19 18:32:02,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:02,972 INFO L225 Difference]: With dead ends: 2645 [2022-07-19 18:32:02,972 INFO L226 Difference]: Without dead ends: 2491 [2022-07-19 18:32:02,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:32:02,973 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 5721 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5721 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 2906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:02,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5721 Valid, 3279 Invalid, 2906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 18:32:02,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2022-07-19 18:32:03,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 986. [2022-07-19 18:32:03,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.2935684647302905) internal successors, (1247), 985 states have internal predecessors, (1247), 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 18:32:03,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1247 transitions. [2022-07-19 18:32:03,435 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1247 transitions. Word has length 101 [2022-07-19 18:32:03,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:03,436 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1247 transitions. [2022-07-19 18:32:03,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 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 18:32:03,436 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1247 transitions. [2022-07-19 18:32:03,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-19 18:32:03,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:03,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:03,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-19 18:32:03,437 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:03,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1646856919, now seen corresponding path program 1 times [2022-07-19 18:32:03,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:03,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545363992] [2022-07-19 18:32:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:03,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:03,634 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 18:32:03,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:03,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545363992] [2022-07-19 18:32:03,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545363992] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:03,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:03,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:32:03,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027738533] [2022-07-19 18:32:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:03,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:03,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:03,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:03,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:03,636 INFO L87 Difference]: Start difference. First operand 986 states and 1247 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:06,231 INFO L93 Difference]: Finished difference Result 2189 states and 2929 transitions. [2022-07-19 18:32:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:32:06,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 102 [2022-07-19 18:32:06,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:06,234 INFO L225 Difference]: With dead ends: 2189 [2022-07-19 18:32:06,234 INFO L226 Difference]: Without dead ends: 2039 [2022-07-19 18:32:06,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:32:06,235 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 4069 mSDsluCounter, 5077 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4069 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:06,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4069 Valid, 6134 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:32:06,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2022-07-19 18:32:06,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 984. [2022-07-19 18:32:06,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 962 states have (on average 1.292099792099792) internal successors, (1243), 983 states have internal predecessors, (1243), 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 18:32:06,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1243 transitions. [2022-07-19 18:32:06,731 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1243 transitions. Word has length 102 [2022-07-19 18:32:06,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:06,731 INFO L495 AbstractCegarLoop]: Abstraction has 984 states and 1243 transitions. [2022-07-19 18:32:06,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:06,731 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1243 transitions. [2022-07-19 18:32:06,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-19 18:32:06,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:06,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:06,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-07-19 18:32:06,733 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:06,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:06,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1088930121, now seen corresponding path program 1 times [2022-07-19 18:32:06,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:06,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574427084] [2022-07-19 18:32:06,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:06,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:06,969 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 18:32:06,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:06,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574427084] [2022-07-19 18:32:06,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574427084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:06,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:06,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 18:32:06,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331524942] [2022-07-19 18:32:06,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:06,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:32:06,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:06,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:32:06,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:32:06,971 INFO L87 Difference]: Start difference. First operand 984 states and 1243 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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 18:32:10,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:10,371 INFO L93 Difference]: Finished difference Result 3404 states and 4578 transitions. [2022-07-19 18:32:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 18:32:10,372 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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 102 [2022-07-19 18:32:10,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:10,375 INFO L225 Difference]: With dead ends: 3404 [2022-07-19 18:32:10,376 INFO L226 Difference]: Without dead ends: 3204 [2022-07-19 18:32:10,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-07-19 18:32:10,377 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 5128 mSDsluCounter, 11594 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5128 SdHoareTripleChecker+Valid, 13217 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:10,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5128 Valid, 13217 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 18:32:10,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states. [2022-07-19 18:32:10,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 932. [2022-07-19 18:32:10,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 911 states have (on average 1.2908891328210756) internal successors, (1176), 931 states have internal predecessors, (1176), 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 18:32:10,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1176 transitions. [2022-07-19 18:32:10,863 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1176 transitions. Word has length 102 [2022-07-19 18:32:10,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:10,863 INFO L495 AbstractCegarLoop]: Abstraction has 932 states and 1176 transitions. [2022-07-19 18:32:10,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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 18:32:10,863 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1176 transitions. [2022-07-19 18:32:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-19 18:32:10,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:10,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:10,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-07-19 18:32:10,865 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:10,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:10,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1385332425, now seen corresponding path program 1 times [2022-07-19 18:32:10,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:10,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401223423] [2022-07-19 18:32:10,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:11,049 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 18:32:11,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:11,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401223423] [2022-07-19 18:32:11,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401223423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:11,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:11,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:32:11,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501175574] [2022-07-19 18:32:11,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:11,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:11,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:11,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:11,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:11,050 INFO L87 Difference]: Start difference. First operand 932 states and 1176 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:13,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:13,225 INFO L93 Difference]: Finished difference Result 2396 states and 3211 transitions. [2022-07-19 18:32:13,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:32:13,226 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 102 [2022-07-19 18:32:13,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:13,228 INFO L225 Difference]: With dead ends: 2396 [2022-07-19 18:32:13,228 INFO L226 Difference]: Without dead ends: 2175 [2022-07-19 18:32:13,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:32:13,229 INFO L413 NwaCegarLoop]: 1262 mSDtfsCounter, 4886 mSDsluCounter, 4388 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4886 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:13,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4886 Valid, 5650 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:32:13,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2175 states. [2022-07-19 18:32:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2175 to 859. [2022-07-19 18:32:13,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 841 states have (on average 1.2889417360285376) internal successors, (1084), 858 states have internal predecessors, (1084), 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 18:32:13,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1084 transitions. [2022-07-19 18:32:13,706 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1084 transitions. Word has length 102 [2022-07-19 18:32:13,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:13,707 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1084 transitions. [2022-07-19 18:32:13,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:13,707 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1084 transitions. [2022-07-19 18:32:13,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-19 18:32:13,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:13,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:13,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-19 18:32:13,708 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:13,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1283351432, now seen corresponding path program 1 times [2022-07-19 18:32:13,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:13,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603051411] [2022-07-19 18:32:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:13,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:13,799 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 18:32:13,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:13,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603051411] [2022-07-19 18:32:13,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603051411] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:13,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:13,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:13,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27352318] [2022-07-19 18:32:13,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:13,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:13,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:13,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:13,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:13,801 INFO L87 Difference]: Start difference. First operand 859 states and 1084 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 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 18:32:15,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:15,887 INFO L93 Difference]: Finished difference Result 1912 states and 2527 transitions. [2022-07-19 18:32:15,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:15,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 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 102 [2022-07-19 18:32:15,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:15,889 INFO L225 Difference]: With dead ends: 1912 [2022-07-19 18:32:15,899 INFO L226 Difference]: Without dead ends: 1693 [2022-07-19 18:32:15,899 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 18:32:15,915 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 2953 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2953 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:15,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2953 Valid, 3458 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:32:15,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2022-07-19 18:32:16,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 849. [2022-07-19 18:32:16,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 831 states have (on average 1.2900120336943441) internal successors, (1072), 848 states have internal predecessors, (1072), 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 18:32:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1072 transitions. [2022-07-19 18:32:16,409 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1072 transitions. Word has length 102 [2022-07-19 18:32:16,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:16,409 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1072 transitions. [2022-07-19 18:32:16,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 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 18:32:16,409 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1072 transitions. [2022-07-19 18:32:16,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-19 18:32:16,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:16,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:16,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-07-19 18:32:16,410 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:16,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:16,411 INFO L85 PathProgramCache]: Analyzing trace with hash 411891703, now seen corresponding path program 1 times [2022-07-19 18:32:16,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:16,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493497037] [2022-07-19 18:32:16,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:16,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:16,600 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 18:32:16,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:16,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493497037] [2022-07-19 18:32:16,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493497037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:16,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:16,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:32:16,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301543984] [2022-07-19 18:32:16,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:16,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:16,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:16,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:16,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:16,601 INFO L87 Difference]: Start difference. First operand 849 states and 1072 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:17,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:17,960 INFO L93 Difference]: Finished difference Result 1526 states and 2036 transitions. [2022-07-19 18:32:17,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:32:17,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 102 [2022-07-19 18:32:17,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:17,962 INFO L225 Difference]: With dead ends: 1526 [2022-07-19 18:32:17,962 INFO L226 Difference]: Without dead ends: 1155 [2022-07-19 18:32:17,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:32:17,963 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 2941 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2941 SdHoareTripleChecker+Valid, 4399 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:17,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2941 Valid, 4399 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:32:17,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-07-19 18:32:18,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 626. [2022-07-19 18:32:18,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 613 states have (on average 1.2936378466557912) internal successors, (793), 625 states have internal predecessors, (793), 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 18:32:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 793 transitions. [2022-07-19 18:32:18,348 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 793 transitions. Word has length 102 [2022-07-19 18:32:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:18,349 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 793 transitions. [2022-07-19 18:32:18,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:18,349 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 793 transitions. [2022-07-19 18:32:18,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-19 18:32:18,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:18,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:18,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-07-19 18:32:18,350 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:18,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:18,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2070282935, now seen corresponding path program 1 times [2022-07-19 18:32:18,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:18,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862328371] [2022-07-19 18:32:18,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:18,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:18,541 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 18:32:18,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:18,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862328371] [2022-07-19 18:32:18,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862328371] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:18,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:18,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:32:18,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926209386] [2022-07-19 18:32:18,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:18,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:18,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:18,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:18,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:18,542 INFO L87 Difference]: Start difference. First operand 626 states and 793 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:20,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:20,057 INFO L93 Difference]: Finished difference Result 1360 states and 1844 transitions. [2022-07-19 18:32:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:32:20,057 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 102 [2022-07-19 18:32:20,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:20,059 INFO L225 Difference]: With dead ends: 1360 [2022-07-19 18:32:20,059 INFO L226 Difference]: Without dead ends: 1122 [2022-07-19 18:32:20,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:32:20,060 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 2598 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:20,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 3806 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:32:20,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-07-19 18:32:20,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 536. [2022-07-19 18:32:20,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 524 states have (on average 1.297709923664122) internal successors, (680), 535 states have internal predecessors, (680), 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 18:32:20,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 680 transitions. [2022-07-19 18:32:20,424 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 680 transitions. Word has length 102 [2022-07-19 18:32:20,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:20,424 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 680 transitions. [2022-07-19 18:32:20,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:20,425 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 680 transitions. [2022-07-19 18:32:20,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-19 18:32:20,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:20,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:20,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-07-19 18:32:20,426 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:20,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:20,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1059722039, now seen corresponding path program 1 times [2022-07-19 18:32:20,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:20,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906079] [2022-07-19 18:32:20,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:20,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:20,615 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 18:32:20,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:20,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906079] [2022-07-19 18:32:20,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:20,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:20,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:32:20,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158672697] [2022-07-19 18:32:20,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:20,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:20,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:20,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:20,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:20,616 INFO L87 Difference]: Start difference. First operand 536 states and 680 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:22,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:22,699 INFO L93 Difference]: Finished difference Result 1823 states and 2482 transitions. [2022-07-19 18:32:22,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:32:22,699 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 102 [2022-07-19 18:32:22,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:22,701 INFO L225 Difference]: With dead ends: 1823 [2022-07-19 18:32:22,701 INFO L226 Difference]: Without dead ends: 1620 [2022-07-19 18:32:22,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:32:22,702 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 2857 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2857 SdHoareTripleChecker+Valid, 5800 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:22,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2857 Valid, 5800 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:32:22,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2022-07-19 18:32:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 481. [2022-07-19 18:32:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 470 states have (on average 1.297872340425532) internal successors, (610), 480 states have internal predecessors, (610), 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 18:32:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 610 transitions. [2022-07-19 18:32:23,042 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 610 transitions. Word has length 102 [2022-07-19 18:32:23,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:23,042 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 610 transitions. [2022-07-19 18:32:23,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:23,042 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 610 transitions. [2022-07-19 18:32:23,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-19 18:32:23,043 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:23,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:23,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-07-19 18:32:23,043 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:23,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:23,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2015954551, now seen corresponding path program 1 times [2022-07-19 18:32:23,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:23,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651589763] [2022-07-19 18:32:23,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:23,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:23,256 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 18:32:23,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:23,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651589763] [2022-07-19 18:32:23,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651589763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:23,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:23,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 18:32:23,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999072440] [2022-07-19 18:32:23,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:23,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:32:23,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:23,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:32:23,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:32:23,258 INFO L87 Difference]: Start difference. First operand 481 states and 610 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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 18:32:26,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:26,476 INFO L93 Difference]: Finished difference Result 2375 states and 3312 transitions. [2022-07-19 18:32:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 18:32:26,477 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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 102 [2022-07-19 18:32:26,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:26,479 INFO L225 Difference]: With dead ends: 2375 [2022-07-19 18:32:26,479 INFO L226 Difference]: Without dead ends: 2195 [2022-07-19 18:32:26,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:32:26,480 INFO L413 NwaCegarLoop]: 1171 mSDtfsCounter, 2717 mSDsluCounter, 7475 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 8646 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:26,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 8646 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 18:32:26,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2022-07-19 18:32:26,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 449. [2022-07-19 18:32:26,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 439 states have (on average 1.2984054669703873) internal successors, (570), 448 states have internal predecessors, (570), 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 18:32:26,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 570 transitions. [2022-07-19 18:32:26,808 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 570 transitions. Word has length 102 [2022-07-19 18:32:26,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:26,809 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 570 transitions. [2022-07-19 18:32:26,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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 18:32:26,809 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 570 transitions. [2022-07-19 18:32:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-19 18:32:26,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:26,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:26,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-07-19 18:32:26,810 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:26,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:26,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1489984663, now seen corresponding path program 1 times [2022-07-19 18:32:26,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:26,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020922074] [2022-07-19 18:32:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:26,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:26,998 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 18:32:26,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:26,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020922074] [2022-07-19 18:32:26,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020922074] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:26,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:26,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:32:26,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117109356] [2022-07-19 18:32:26,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:26,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:26,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:26,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:27,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:27,000 INFO L87 Difference]: Start difference. First operand 449 states and 570 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:28,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:28,993 INFO L93 Difference]: Finished difference Result 1429 states and 1995 transitions. [2022-07-19 18:32:28,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:32:28,993 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 102 [2022-07-19 18:32:28,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:28,995 INFO L225 Difference]: With dead ends: 1429 [2022-07-19 18:32:28,995 INFO L226 Difference]: Without dead ends: 1280 [2022-07-19 18:32:28,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:32:28,995 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 2428 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2428 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:28,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2428 Valid, 3141 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:32:28,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2022-07-19 18:32:29,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 448. [2022-07-19 18:32:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 438 states have (on average 1.2968036529680365) internal successors, (568), 447 states have internal predecessors, (568), 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 18:32:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 568 transitions. [2022-07-19 18:32:29,318 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 568 transitions. Word has length 102 [2022-07-19 18:32:29,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:29,319 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 568 transitions. [2022-07-19 18:32:29,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 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 18:32:29,319 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 568 transitions. [2022-07-19 18:32:29,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-19 18:32:29,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:29,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:29,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-07-19 18:32:29,320 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:29,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:29,320 INFO L85 PathProgramCache]: Analyzing trace with hash 883083848, now seen corresponding path program 1 times [2022-07-19 18:32:29,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:29,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166590788] [2022-07-19 18:32:29,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:29,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:29,523 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 18:32:29,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:29,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166590788] [2022-07-19 18:32:29,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166590788] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:29,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:29,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:32:29,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078928205] [2022-07-19 18:32:29,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:29,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:29,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:29,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:29,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:29,525 INFO L87 Difference]: Start difference. First operand 448 states and 568 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 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 18:32:30,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:30,626 INFO L93 Difference]: Finished difference Result 838 states and 1114 transitions. [2022-07-19 18:32:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:32:30,627 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 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 103 [2022-07-19 18:32:30,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:30,628 INFO L225 Difference]: With dead ends: 838 [2022-07-19 18:32:30,628 INFO L226 Difference]: Without dead ends: 684 [2022-07-19 18:32:30,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:32:30,628 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 1743 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:30,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 2751 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:32:30,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-07-19 18:32:30,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 438. [2022-07-19 18:32:30,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 429 states have (on average 1.289044289044289) internal successors, (553), 437 states have internal predecessors, (553), 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 18:32:30,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 553 transitions. [2022-07-19 18:32:30,958 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 553 transitions. Word has length 103 [2022-07-19 18:32:30,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:30,958 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 553 transitions. [2022-07-19 18:32:30,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 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 18:32:30,958 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 553 transitions. [2022-07-19 18:32:30,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-19 18:32:30,959 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:30,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:30,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-07-19 18:32:30,959 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:30,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:30,960 INFO L85 PathProgramCache]: Analyzing trace with hash -989398264, now seen corresponding path program 1 times [2022-07-19 18:32:30,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:30,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052351754] [2022-07-19 18:32:30,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:30,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:31,175 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 18:32:31,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:31,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052351754] [2022-07-19 18:32:31,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052351754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:31,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:31,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 18:32:31,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898068879] [2022-07-19 18:32:31,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:31,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:32:31,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:31,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:32:31,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:32:31,176 INFO L87 Difference]: Start difference. First operand 438 states and 553 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 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 18:32:34,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:34,455 INFO L93 Difference]: Finished difference Result 2242 states and 3133 transitions. [2022-07-19 18:32:34,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 18:32:34,456 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 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 103 [2022-07-19 18:32:34,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:34,468 INFO L225 Difference]: With dead ends: 2242 [2022-07-19 18:32:34,468 INFO L226 Difference]: Without dead ends: 2037 [2022-07-19 18:32:34,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:32:34,469 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 2227 mSDsluCounter, 7161 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2227 SdHoareTripleChecker+Valid, 8437 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:34,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2227 Valid, 8437 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 18:32:34,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2022-07-19 18:32:34,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 381. [2022-07-19 18:32:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 375 states have (on average 1.2826666666666666) internal successors, (481), 380 states have internal predecessors, (481), 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 18:32:34,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 481 transitions. [2022-07-19 18:32:34,793 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 481 transitions. Word has length 103 [2022-07-19 18:32:34,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:34,793 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 481 transitions. [2022-07-19 18:32:34,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 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 18:32:34,793 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 481 transitions. [2022-07-19 18:32:34,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-19 18:32:34,794 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:34,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:34,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-07-19 18:32:34,794 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:34,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:34,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1769701400, now seen corresponding path program 1 times [2022-07-19 18:32:34,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:34,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565250878] [2022-07-19 18:32:34,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:34,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:34,990 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 18:32:34,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:34,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565250878] [2022-07-19 18:32:34,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565250878] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:34,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:34,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:32:34,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957224477] [2022-07-19 18:32:34,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:34,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:34,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:34,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:34,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:34,991 INFO L87 Difference]: Start difference. First operand 381 states and 481 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 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 18:32:36,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:36,023 INFO L93 Difference]: Finished difference Result 747 states and 996 transitions. [2022-07-19 18:32:36,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:32:36,024 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 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 103 [2022-07-19 18:32:36,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:36,024 INFO L225 Difference]: With dead ends: 747 [2022-07-19 18:32:36,024 INFO L226 Difference]: Without dead ends: 595 [2022-07-19 18:32:36,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:32:36,025 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 1740 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:36,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 1572 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:32:36,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-07-19 18:32:36,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 377. [2022-07-19 18:32:36,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 372 states have (on average 1.2795698924731183) internal successors, (476), 376 states have internal predecessors, (476), 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 18:32:36,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 476 transitions. [2022-07-19 18:32:36,346 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 476 transitions. Word has length 103 [2022-07-19 18:32:36,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:36,346 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 476 transitions. [2022-07-19 18:32:36,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 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 18:32:36,347 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 476 transitions. [2022-07-19 18:32:36,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-19 18:32:36,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:36,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:36,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-07-19 18:32:36,348 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:36,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:36,349 INFO L85 PathProgramCache]: Analyzing trace with hash 2005053800, now seen corresponding path program 1 times [2022-07-19 18:32:36,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:36,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607828692] [2022-07-19 18:32:36,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:36,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:36,531 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 18:32:36,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:36,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607828692] [2022-07-19 18:32:36,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607828692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:36,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:36,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:36,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536791980] [2022-07-19 18:32:36,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:36,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 18:32:36,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:36,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 18:32:36,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-19 18:32:36,532 INFO L87 Difference]: Start difference. First operand 377 states and 476 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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 18:32:38,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:38,012 INFO L93 Difference]: Finished difference Result 1022 states and 1407 transitions. [2022-07-19 18:32:38,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:38,013 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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 103 [2022-07-19 18:32:38,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:38,014 INFO L225 Difference]: With dead ends: 1022 [2022-07-19 18:32:38,014 INFO L226 Difference]: Without dead ends: 822 [2022-07-19 18:32:38,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:32:38,015 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 1664 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:38,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 1834 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:32:38,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-07-19 18:32:38,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 325. [2022-07-19 18:32:38,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 322 states have (on average 1.2919254658385093) internal successors, (416), 324 states have internal predecessors, (416), 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 18:32:38,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 416 transitions. [2022-07-19 18:32:38,312 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 416 transitions. Word has length 103 [2022-07-19 18:32:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:38,312 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 416 transitions. [2022-07-19 18:32:38,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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 18:32:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 416 transitions. [2022-07-19 18:32:38,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-19 18:32:38,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:38,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:38,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-07-19 18:32:38,314 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:38,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:38,315 INFO L85 PathProgramCache]: Analyzing trace with hash -441491864, now seen corresponding path program 1 times [2022-07-19 18:32:38,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:38,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75137037] [2022-07-19 18:32:38,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:38,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:38,429 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 18:32:38,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:38,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75137037] [2022-07-19 18:32:38,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75137037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:38,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:38,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:38,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879317423] [2022-07-19 18:32:38,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:38,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:38,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:38,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:38,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:38,432 INFO L87 Difference]: Start difference. First operand 325 states and 416 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 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 18:32:39,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:39,327 INFO L93 Difference]: Finished difference Result 521 states and 688 transitions. [2022-07-19 18:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:32:39,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 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 105 [2022-07-19 18:32:39,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:39,329 INFO L225 Difference]: With dead ends: 521 [2022-07-19 18:32:39,329 INFO L226 Difference]: Without dead ends: 513 [2022-07-19 18:32:39,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-19 18:32:39,332 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 1137 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:39,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 784 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:32:39,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-07-19 18:32:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 325. [2022-07-19 18:32:39,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 322 states have (on average 1.2888198757763976) internal successors, (415), 324 states have internal predecessors, (415), 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 18:32:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 415 transitions. [2022-07-19 18:32:39,634 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 415 transitions. Word has length 105 [2022-07-19 18:32:39,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:39,635 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 415 transitions. [2022-07-19 18:32:39,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 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 18:32:39,635 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 415 transitions. [2022-07-19 18:32:39,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-19 18:32:39,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:39,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:39,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-07-19 18:32:39,636 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:39,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1706763544, now seen corresponding path program 1 times [2022-07-19 18:32:39,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:39,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971756667] [2022-07-19 18:32:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:39,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:39,732 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 18:32:39,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:39,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971756667] [2022-07-19 18:32:39,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971756667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:39,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:39,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:39,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050633897] [2022-07-19 18:32:39,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:39,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:39,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:39,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:39,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:39,734 INFO L87 Difference]: Start difference. First operand 325 states and 415 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 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 18:32:40,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:40,623 INFO L93 Difference]: Finished difference Result 722 states and 972 transitions. [2022-07-19 18:32:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 18:32:40,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 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 105 [2022-07-19 18:32:40,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:40,624 INFO L225 Difference]: With dead ends: 722 [2022-07-19 18:32:40,624 INFO L226 Difference]: Without dead ends: 540 [2022-07-19 18:32:40,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-19 18:32:40,625 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 685 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:40,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 817 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:32:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-07-19 18:32:40,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 325. [2022-07-19 18:32:40,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 322 states have (on average 1.2826086956521738) internal successors, (413), 324 states have internal predecessors, (413), 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 18:32:40,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 413 transitions. [2022-07-19 18:32:40,938 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 413 transitions. Word has length 105 [2022-07-19 18:32:40,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:40,938 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 413 transitions. [2022-07-19 18:32:40,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 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 18:32:40,939 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 413 transitions. [2022-07-19 18:32:40,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-19 18:32:40,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:40,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:40,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-07-19 18:32:40,940 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:40,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:40,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1398650157, now seen corresponding path program 1 times [2022-07-19 18:32:40,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:40,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56624600] [2022-07-19 18:32:40,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:40,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:41,134 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 18:32:41,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:41,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56624600] [2022-07-19 18:32:41,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56624600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:41,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:41,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:32:41,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742300747] [2022-07-19 18:32:41,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:41,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:41,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:41,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:41,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:41,136 INFO L87 Difference]: Start difference. First operand 325 states and 413 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 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 18:32:42,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:42,698 INFO L93 Difference]: Finished difference Result 831 states and 1141 transitions. [2022-07-19 18:32:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:32:42,698 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 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 107 [2022-07-19 18:32:42,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:42,699 INFO L225 Difference]: With dead ends: 831 [2022-07-19 18:32:42,699 INFO L226 Difference]: Without dead ends: 825 [2022-07-19 18:32:42,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:32:42,700 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 1165 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:42,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 2691 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:32:42,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2022-07-19 18:32:43,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 319. [2022-07-19 18:32:43,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 317 states have (on average 1.2807570977917981) internal successors, (406), 318 states have internal predecessors, (406), 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 18:32:43,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 406 transitions. [2022-07-19 18:32:43,003 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 406 transitions. Word has length 107 [2022-07-19 18:32:43,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:43,003 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 406 transitions. [2022-07-19 18:32:43,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 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 18:32:43,004 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 406 transitions. [2022-07-19 18:32:43,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-19 18:32:43,004 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:43,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:43,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-07-19 18:32:43,004 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:43,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:43,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1448357139, now seen corresponding path program 1 times [2022-07-19 18:32:43,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:43,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993556919] [2022-07-19 18:32:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:43,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:43,831 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 18:32:43,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:43,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993556919] [2022-07-19 18:32:43,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993556919] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:43,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:43,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-07-19 18:32:43,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013881862] [2022-07-19 18:32:43,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:43,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-07-19 18:32:43,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:43,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-07-19 18:32:43,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2022-07-19 18:32:43,833 INFO L87 Difference]: Start difference. First operand 319 states and 406 transitions. Second operand has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 states have internal predecessors, (107), 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 18:32:46,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:46,859 INFO L93 Difference]: Finished difference Result 378 states and 468 transitions. [2022-07-19 18:32:46,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-19 18:32:46,860 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 states have internal predecessors, (107), 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 107 [2022-07-19 18:32:46,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:46,861 INFO L225 Difference]: With dead ends: 378 [2022-07-19 18:32:46,861 INFO L226 Difference]: Without dead ends: 369 [2022-07-19 18:32:46,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=506, Invalid=2916, Unknown=0, NotChecked=0, Total=3422 [2022-07-19 18:32:46,861 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 835 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 2352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:46,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 3612 Invalid, 2352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:32:46,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-07-19 18:32:47,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 341. [2022-07-19 18:32:47,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 339 states have (on average 1.2743362831858407) internal successors, (432), 340 states have internal predecessors, (432), 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 18:32:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 432 transitions. [2022-07-19 18:32:47,175 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 432 transitions. Word has length 107 [2022-07-19 18:32:47,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:47,176 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 432 transitions. [2022-07-19 18:32:47,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 states have internal predecessors, (107), 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 18:32:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 432 transitions. [2022-07-19 18:32:47,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-19 18:32:47,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:47,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:47,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-07-19 18:32:47,177 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:47,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:47,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1489766619, now seen corresponding path program 1 times [2022-07-19 18:32:47,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:47,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721168960] [2022-07-19 18:32:47,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:47,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:47,409 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 18:32:47,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:47,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721168960] [2022-07-19 18:32:47,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721168960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:47,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:47,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:32:47,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801214078] [2022-07-19 18:32:47,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:47,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:47,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:47,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:47,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:47,411 INFO L87 Difference]: Start difference. First operand 341 states and 432 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 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 18:32:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:49,066 INFO L93 Difference]: Finished difference Result 889 states and 1212 transitions. [2022-07-19 18:32:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:32:49,066 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 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 108 [2022-07-19 18:32:49,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:49,072 INFO L225 Difference]: With dead ends: 889 [2022-07-19 18:32:49,072 INFO L226 Difference]: Without dead ends: 873 [2022-07-19 18:32:49,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:32:49,073 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 1049 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 3208 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:49,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 3208 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:32:49,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2022-07-19 18:32:49,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 306. [2022-07-19 18:32:49,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.2819672131147541) internal successors, (391), 305 states have internal predecessors, (391), 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 18:32:49,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 391 transitions. [2022-07-19 18:32:49,396 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 391 transitions. Word has length 108 [2022-07-19 18:32:49,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:49,396 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 391 transitions. [2022-07-19 18:32:49,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 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 18:32:49,397 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 391 transitions. [2022-07-19 18:32:49,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-19 18:32:49,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:49,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:49,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-07-19 18:32:49,398 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:49,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:49,398 INFO L85 PathProgramCache]: Analyzing trace with hash 442348771, now seen corresponding path program 1 times [2022-07-19 18:32:49,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:49,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13365915] [2022-07-19 18:32:49,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:49,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:49,465 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 18:32:49,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:49,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13365915] [2022-07-19 18:32:49,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13365915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:49,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:49,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:49,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562288851] [2022-07-19 18:32:49,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:49,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:32:49,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:49,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:32:49,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:32:49,467 INFO L87 Difference]: Start difference. First operand 306 states and 391 transitions. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 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 18:32:52,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:52,683 INFO L93 Difference]: Finished difference Result 2082 states and 3031 transitions. [2022-07-19 18:32:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 18:32:52,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 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 140 [2022-07-19 18:32:52,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:52,686 INFO L225 Difference]: With dead ends: 2082 [2022-07-19 18:32:52,686 INFO L226 Difference]: Without dead ends: 1934 [2022-07-19 18:32:52,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-07-19 18:32:52,687 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 2329 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2329 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:52,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2329 Valid, 1886 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:32:52,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2022-07-19 18:32:53,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 452. [2022-07-19 18:32:53,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 1.3436807095343681) internal successors, (606), 451 states have internal predecessors, (606), 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 18:32:53,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 606 transitions. [2022-07-19 18:32:53,268 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 606 transitions. Word has length 140 [2022-07-19 18:32:53,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:53,268 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 606 transitions. [2022-07-19 18:32:53,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 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 18:32:53,268 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 606 transitions. [2022-07-19 18:32:53,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 18:32:53,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:53,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:53,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-07-19 18:32:53,269 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:53,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:53,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1151920748, now seen corresponding path program 1 times [2022-07-19 18:32:53,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:53,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273564440] [2022-07-19 18:32:53,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:53,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:53,347 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 18:32:53,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:53,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273564440] [2022-07-19 18:32:53,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273564440] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:53,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:53,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:53,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313000237] [2022-07-19 18:32:53,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:53,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:32:53,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:53,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:32:53,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:32:53,349 INFO L87 Difference]: Start difference. First operand 452 states and 606 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:32:56,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:56,862 INFO L93 Difference]: Finished difference Result 2364 states and 3432 transitions. [2022-07-19 18:32:56,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 18:32:56,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 142 [2022-07-19 18:32:56,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:56,864 INFO L225 Difference]: With dead ends: 2364 [2022-07-19 18:32:56,865 INFO L226 Difference]: Without dead ends: 2070 [2022-07-19 18:32:56,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:32:56,865 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 1928 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:56,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 1265 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:32:56,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2022-07-19 18:32:57,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 744. [2022-07-19 18:32:57,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 743 states have (on average 1.3970390309555856) internal successors, (1038), 743 states have internal predecessors, (1038), 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 18:32:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1038 transitions. [2022-07-19 18:32:57,998 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1038 transitions. Word has length 142 [2022-07-19 18:32:57,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:57,998 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 1038 transitions. [2022-07-19 18:32:57,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:32:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1038 transitions. [2022-07-19 18:32:57,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 18:32:57,999 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:57,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:58,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-07-19 18:32:58,000 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:58,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:58,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1593810451, now seen corresponding path program 1 times [2022-07-19 18:32:58,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:58,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884831397] [2022-07-19 18:32:58,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:58,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:58,042 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 18:32:58,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:58,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884831397] [2022-07-19 18:32:58,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884831397] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:58,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:58,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:32:58,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512677955] [2022-07-19 18:32:58,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:58,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:32:58,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:58,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:32:58,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:32:58,044 INFO L87 Difference]: Start difference. First operand 744 states and 1038 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 18:33:00,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:00,210 INFO L93 Difference]: Finished difference Result 1864 states and 2680 transitions. [2022-07-19 18:33:00,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:33:00,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 142 [2022-07-19 18:33:00,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:00,212 INFO L225 Difference]: With dead ends: 1864 [2022-07-19 18:33:00,212 INFO L226 Difference]: Without dead ends: 1278 [2022-07-19 18:33:00,213 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 18:33:00,213 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 98 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:00,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 545 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:33:00,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2022-07-19 18:33:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1276. [2022-07-19 18:33:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 1.4086274509803922) internal successors, (1796), 1275 states have internal predecessors, (1796), 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 18:33:02,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1796 transitions. [2022-07-19 18:33:02,334 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1796 transitions. Word has length 142 [2022-07-19 18:33:02,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:02,335 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1796 transitions. [2022-07-19 18:33:02,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 18:33:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1796 transitions. [2022-07-19 18:33:02,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 18:33:02,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:02,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:02,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-07-19 18:33:02,336 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:02,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:02,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1660303963, now seen corresponding path program 1 times [2022-07-19 18:33:02,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:02,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128185461] [2022-07-19 18:33:02,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:02,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:02,476 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 18:33:02,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:02,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128185461] [2022-07-19 18:33:02,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128185461] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:02,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:02,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:02,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864372152] [2022-07-19 18:33:02,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:02,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:33:02,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:02,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:33:02,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:33:02,478 INFO L87 Difference]: Start difference. First operand 1276 states and 1796 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:33:04,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:04,768 INFO L93 Difference]: Finished difference Result 2396 states and 3422 transitions. [2022-07-19 18:33:04,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 18:33:04,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 142 [2022-07-19 18:33:04,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:04,770 INFO L225 Difference]: With dead ends: 2396 [2022-07-19 18:33:04,770 INFO L226 Difference]: Without dead ends: 1278 [2022-07-19 18:33:04,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:33:04,772 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 692 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:04,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 872 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:33:04,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2022-07-19 18:33:06,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1276. [2022-07-19 18:33:06,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 1.4054901960784314) internal successors, (1792), 1275 states have internal predecessors, (1792), 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 18:33:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1792 transitions. [2022-07-19 18:33:06,921 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1792 transitions. Word has length 142 [2022-07-19 18:33:06,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:06,921 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1792 transitions. [2022-07-19 18:33:06,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:33:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1792 transitions. [2022-07-19 18:33:06,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 18:33:06,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:06,922 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:06,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-07-19 18:33:06,923 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:06,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:06,923 INFO L85 PathProgramCache]: Analyzing trace with hash 455110252, now seen corresponding path program 1 times [2022-07-19 18:33:06,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:06,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512830287] [2022-07-19 18:33:06,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:06,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:07,011 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 18:33:07,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:07,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512830287] [2022-07-19 18:33:07,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512830287] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:07,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:07,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:07,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311507665] [2022-07-19 18:33:07,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:07,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:33:07,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:07,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:33:07,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:33:07,013 INFO L87 Difference]: Start difference. First operand 1276 states and 1792 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:33:14,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:14,898 INFO L93 Difference]: Finished difference Result 4918 states and 7075 transitions. [2022-07-19 18:33:14,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 18:33:14,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 142 [2022-07-19 18:33:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:14,902 INFO L225 Difference]: With dead ends: 4918 [2022-07-19 18:33:14,902 INFO L226 Difference]: Without dead ends: 4358 [2022-07-19 18:33:14,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:33:14,904 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 1793 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:14,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 1311 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:33:14,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2022-07-19 18:33:18,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 2114. [2022-07-19 18:33:18,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2114 states, 2113 states have (on average 1.4216753431140559) internal successors, (3004), 2113 states have internal predecessors, (3004), 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 18:33:18,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3004 transitions. [2022-07-19 18:33:18,635 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3004 transitions. Word has length 142 [2022-07-19 18:33:18,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:18,635 INFO L495 AbstractCegarLoop]: Abstraction has 2114 states and 3004 transitions. [2022-07-19 18:33:18,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:33:18,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3004 transitions. [2022-07-19 18:33:18,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 18:33:18,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:18,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:18,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-07-19 18:33:18,636 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:18,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:18,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1544803220, now seen corresponding path program 1 times [2022-07-19 18:33:18,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:18,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289244250] [2022-07-19 18:33:18,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:18,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:18,710 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 18:33:18,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:18,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289244250] [2022-07-19 18:33:18,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289244250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:18,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:18,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:18,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827943177] [2022-07-19 18:33:18,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:18,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:33:18,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:18,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:33:18,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:33:18,712 INFO L87 Difference]: Start difference. First operand 2114 states and 3004 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:33:27,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:27,514 INFO L93 Difference]: Finished difference Result 5476 states and 7883 transitions. [2022-07-19 18:33:27,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 18:33:27,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 142 [2022-07-19 18:33:27,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:27,519 INFO L225 Difference]: With dead ends: 5476 [2022-07-19 18:33:27,519 INFO L226 Difference]: Without dead ends: 4916 [2022-07-19 18:33:27,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:33:27,520 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 1648 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:27,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 1404 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:33:27,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4916 states. [2022-07-19 18:33:32,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4916 to 2672. [2022-07-19 18:33:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2671 states have (on average 1.4271808311493823) internal successors, (3812), 2671 states have internal predecessors, (3812), 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 18:33:32,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3812 transitions. [2022-07-19 18:33:32,316 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3812 transitions. Word has length 142 [2022-07-19 18:33:32,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:32,317 INFO L495 AbstractCegarLoop]: Abstraction has 2672 states and 3812 transitions. [2022-07-19 18:33:32,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:33:32,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3812 transitions. [2022-07-19 18:33:32,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 18:33:32,318 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:32,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:32,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-07-19 18:33:32,318 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:32,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:32,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1663653780, now seen corresponding path program 1 times [2022-07-19 18:33:32,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:32,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246893906] [2022-07-19 18:33:32,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:32,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:32,435 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 18:33:32,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:32,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246893906] [2022-07-19 18:33:32,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246893906] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:32,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:32,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:32,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789661018] [2022-07-19 18:33:32,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:32,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:33:32,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:32,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:33:32,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:33:32,437 INFO L87 Difference]: Start difference. First operand 2672 states and 3812 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:33:42,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:42,401 INFO L93 Difference]: Finished difference Result 6034 states and 8691 transitions. [2022-07-19 18:33:42,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 18:33:42,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 142 [2022-07-19 18:33:42,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:42,407 INFO L225 Difference]: With dead ends: 6034 [2022-07-19 18:33:42,407 INFO L226 Difference]: Without dead ends: 5474 [2022-07-19 18:33:42,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:33:42,408 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 1598 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:42,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 1574 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:33:42,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2022-07-19 18:33:48,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 3230. [2022-07-19 18:33:48,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3230 states, 3229 states have (on average 1.4307835243109321) internal successors, (4620), 3229 states have internal predecessors, (4620), 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 18:33:48,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3230 states to 3230 states and 4620 transitions. [2022-07-19 18:33:48,215 INFO L78 Accepts]: Start accepts. Automaton has 3230 states and 4620 transitions. Word has length 142 [2022-07-19 18:33:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:48,215 INFO L495 AbstractCegarLoop]: Abstraction has 3230 states and 4620 transitions. [2022-07-19 18:33:48,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:33:48,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3230 states and 4620 transitions. [2022-07-19 18:33:48,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 18:33:48,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:48,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:48,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-07-19 18:33:48,217 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:48,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1946851732, now seen corresponding path program 1 times [2022-07-19 18:33:48,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:48,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022357267] [2022-07-19 18:33:48,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:48,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:48,286 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 18:33:48,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:48,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022357267] [2022-07-19 18:33:48,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022357267] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:48,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:48,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:48,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517995635] [2022-07-19 18:33:48,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:48,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:33:48,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:48,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:33:48,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:33:48,288 INFO L87 Difference]: Start difference. First operand 3230 states and 4620 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 18:33:59,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:59,250 INFO L93 Difference]: Finished difference Result 6592 states and 9499 transitions. [2022-07-19 18:33:59,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 18:33:59,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 142 [2022-07-19 18:33:59,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:59,257 INFO L225 Difference]: With dead ends: 6592 [2022-07-19 18:33:59,257 INFO L226 Difference]: Without dead ends: 6032 [2022-07-19 18:33:59,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:33:59,258 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1652 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:59,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 1573 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:33:59,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states.