./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d0e47ba9123028218b420ce8d5a00a95c55595f981ba1193a1a3a9086d3ecf65 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:48:33,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:48:33,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:48:33,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:48:33,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:48:33,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:48:33,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:48:33,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:48:33,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:48:33,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:48:33,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:48:33,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:48:33,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:48:33,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:48:33,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:48:33,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:48:33,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:48:33,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:48:33,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:48:33,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:48:33,809 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:48:33,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:48:33,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:48:33,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:48:33,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:48:33,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:48:33,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:48:33,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:48:33,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:48:33,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:48:33,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:48:33,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:48:33,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:48:33,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:48:33,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:48:33,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:48:33,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:48:33,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:48:33,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:48:33,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:48:33,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:48:33,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:48:33,836 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:48:33,868 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:48:33,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:48:33,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:48:33,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:48:33,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:48:33,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:48:33,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:48:33,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:48:33,871 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:48:33,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:48:33,872 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:48:33,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:48:33,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:48:33,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:48:33,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:48:33,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:48:33,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:48:33,873 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:48:33,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:48:33,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:48:33,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:48:33,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:48:33,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:48:33,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:48:33,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:48:33,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:48:33,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:48:33,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:48:33,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:48:33,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:48:33,876 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:48:33,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:48:33,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:48:33,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0e47ba9123028218b420ce8d5a00a95c55595f981ba1193a1a3a9086d3ecf65 [2022-07-21 05:48:34,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:48:34,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:48:34,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:48:34,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:48:34,232 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:48:34,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-07-21 05:48:34,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d631631/f0c237acfc194c88bb1efc9ef5bdb743/FLAG40d31dcb8 [2022-07-21 05:48:35,086 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:48:35,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-07-21 05:48:35,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d631631/f0c237acfc194c88bb1efc9ef5bdb743/FLAG40d31dcb8 [2022-07-21 05:48:35,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d631631/f0c237acfc194c88bb1efc9ef5bdb743 [2022-07-21 05:48:35,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:48:35,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:48:35,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:48:35,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:48:35,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:48:35,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:48:35" (1/1) ... [2022-07-21 05:48:35,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed058ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:35, skipping insertion in model container [2022-07-21 05:48:35,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:48:35" (1/1) ... [2022-07-21 05:48:35,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:48:35,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:48:36,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32607,32620] [2022-07-21 05:48:36,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39665,39678] [2022-07-21 05:48:36,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66766,66779] [2022-07-21 05:48:36,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75829,75842] [2022-07-21 05:48:36,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82520,82533] [2022-07-21 05:48:36,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94424,94437] [2022-07-21 05:48:36,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103377,103390] [2022-07-21 05:48:36,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111402,111415] [2022-07-21 05:48:36,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[149914,149927] [2022-07-21 05:48:36,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153444,153457] [2022-07-21 05:48:36,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162451,162464] [2022-07-21 05:48:36,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169104,169117] [2022-07-21 05:48:36,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[194798,194811] [2022-07-21 05:48:36,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[226694,226707] [2022-07-21 05:48:36,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[256902,256915] [2022-07-21 05:48:37,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[287214,287227] [2022-07-21 05:48:37,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[320546,320559] [2022-07-21 05:48:37,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:48:37,328 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:48:37,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32607,32620] [2022-07-21 05:48:37,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39665,39678] [2022-07-21 05:48:37,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66766,66779] [2022-07-21 05:48:37,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75829,75842] [2022-07-21 05:48:37,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82520,82533] [2022-07-21 05:48:37,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94424,94437] [2022-07-21 05:48:37,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103377,103390] [2022-07-21 05:48:37,534 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111402,111415] [2022-07-21 05:48:37,582 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[149914,149927] [2022-07-21 05:48:37,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153444,153457] [2022-07-21 05:48:37,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162451,162464] [2022-07-21 05:48:37,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169104,169117] [2022-07-21 05:48:37,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[194798,194811] [2022-07-21 05:48:37,686 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[226694,226707] [2022-07-21 05:48:37,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[256902,256915] [2022-07-21 05:48:37,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[287214,287227] [2022-07-21 05:48:37,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[320546,320559] [2022-07-21 05:48:37,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:48:38,010 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:48:38,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38 WrapperNode [2022-07-21 05:48:38,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:48:38,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:48:38,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:48:38,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:48:38,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (1/1) ... [2022-07-21 05:48:38,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (1/1) ... [2022-07-21 05:48:38,457 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17990 [2022-07-21 05:48:38,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:48:38,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:48:38,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:48:38,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:48:38,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (1/1) ... [2022-07-21 05:48:38,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (1/1) ... [2022-07-21 05:48:38,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (1/1) ... [2022-07-21 05:48:38,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (1/1) ... [2022-07-21 05:48:38,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (1/1) ... [2022-07-21 05:48:38,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (1/1) ... [2022-07-21 05:48:38,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (1/1) ... [2022-07-21 05:48:38,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:48:38,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:48:38,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:48:38,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:48:38,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (1/1) ... [2022-07-21 05:48:38,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:48:38,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:48:38,892 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) [2022-07-21 05:48:38,906 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 [2022-07-21 05:48:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:48:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:48:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:48:38,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:48:39,433 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:48:39,435 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:48:45,135 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:48:45,179 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:48:45,179 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 05:48:45,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:48:45 BoogieIcfgContainer [2022-07-21 05:48:45,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:48:45,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:48:45,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:48:45,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:48:45,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:48:35" (1/3) ... [2022-07-21 05:48:45,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7803e363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:48:45, skipping insertion in model container [2022-07-21 05:48:45,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:48:38" (2/3) ... [2022-07-21 05:48:45,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7803e363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:48:45, skipping insertion in model container [2022-07-21 05:48:45,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:48:45" (3/3) ... [2022-07-21 05:48:45,195 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-07-21 05:48:45,208 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:48:45,208 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-07-21 05:48:45,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:48:45,334 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@271a4ffe, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@524784b8 [2022-07-21 05:48:45,334 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-07-21 05:48:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 3732 states, 3714 states have (on average 1.7808292945611202) internal successors, (6614), 3731 states have internal predecessors, (6614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:45,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 05:48:45,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:48:45,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:48:45,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:48:45,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:48:45,393 INFO L85 PathProgramCache]: Analyzing trace with hash -100733711, now seen corresponding path program 1 times [2022-07-21 05:48:45,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:48:45,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074929493] [2022-07-21 05:48:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:48:45,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:48:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:48:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:48:45,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:48:45,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074929493] [2022-07-21 05:48:45,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074929493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:48:45,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:48:45,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:48:45,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109091753] [2022-07-21 05:48:45,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:48:45,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:48:45,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:48:45,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:48:45,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:48:45,969 INFO L87 Difference]: Start difference. First operand has 3732 states, 3714 states have (on average 1.7808292945611202) internal successors, (6614), 3731 states have internal predecessors, (6614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:49,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:48:49,801 INFO L93 Difference]: Finished difference Result 7023 states and 12201 transitions. [2022-07-21 05:48:49,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:48:49,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-21 05:48:49,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:48:49,831 INFO L225 Difference]: With dead ends: 7023 [2022-07-21 05:48:49,831 INFO L226 Difference]: Without dead ends: 4502 [2022-07-21 05:48:49,839 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 [2022-07-21 05:48:49,842 INFO L413 NwaCegarLoop]: 2976 mSDtfsCounter, 20410 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 3522 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20410 SdHoareTripleChecker+Valid, 4268 SdHoareTripleChecker+Invalid, 3733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 3522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:48:49,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20410 Valid, 4268 Invalid, 3733 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [211 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-21 05:48:49,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2022-07-21 05:48:50,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4477. [2022-07-21 05:48:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4460 states have (on average 1.3017937219730942) internal successors, (5806), 4476 states have internal predecessors, (5806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:50,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5806 transitions. [2022-07-21 05:48:50,092 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5806 transitions. Word has length 65 [2022-07-21 05:48:50,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:48:50,094 INFO L495 AbstractCegarLoop]: Abstraction has 4477 states and 5806 transitions. [2022-07-21 05:48:50,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:50,095 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5806 transitions. [2022-07-21 05:48:50,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-21 05:48:50,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:48:50,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:48:50,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:48:50,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:48:50,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:48:50,110 INFO L85 PathProgramCache]: Analyzing trace with hash 100373679, now seen corresponding path program 1 times [2022-07-21 05:48:50,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:48:50,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161973418] [2022-07-21 05:48:50,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:48:50,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:48:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:48:50,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:48:50,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:48:50,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161973418] [2022-07-21 05:48:50,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161973418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:48:50,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:48:50,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:48:50,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647146857] [2022-07-21 05:48:50,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:48:50,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:48:50,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:48:50,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:48:50,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:48:50,277 INFO L87 Difference]: Start difference. First operand 4477 states and 5806 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:52,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:48:52,636 INFO L93 Difference]: Finished difference Result 8429 states and 10953 transitions. [2022-07-21 05:48:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:48:52,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-21 05:48:52,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:48:52,659 INFO L225 Difference]: With dead ends: 8429 [2022-07-21 05:48:52,659 INFO L226 Difference]: Without dead ends: 5662 [2022-07-21 05:48:52,667 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 [2022-07-21 05:48:52,668 INFO L413 NwaCegarLoop]: 1914 mSDtfsCounter, 13225 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13225 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:48:52,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13225 Valid, 2583 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 05:48:52,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5662 states. [2022-07-21 05:48:52,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5662 to 5632. [2022-07-21 05:48:52,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5632 states, 5615 states have (on average 1.3073909171861087) internal successors, (7341), 5631 states have internal predecessors, (7341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:52,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5632 states to 5632 states and 7341 transitions. [2022-07-21 05:48:52,965 INFO L78 Accepts]: Start accepts. Automaton has 5632 states and 7341 transitions. Word has length 66 [2022-07-21 05:48:52,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:48:52,966 INFO L495 AbstractCegarLoop]: Abstraction has 5632 states and 7341 transitions. [2022-07-21 05:48:52,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:52,966 INFO L276 IsEmpty]: Start isEmpty. Operand 5632 states and 7341 transitions. [2022-07-21 05:48:52,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-21 05:48:52,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:48:52,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:48:52,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:48:52,975 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:48:52,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:48:52,982 INFO L85 PathProgramCache]: Analyzing trace with hash 2043501231, now seen corresponding path program 1 times [2022-07-21 05:48:52,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:48:52,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271338204] [2022-07-21 05:48:52,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:48:52,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:48:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:48:53,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:48:53,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:48:53,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271338204] [2022-07-21 05:48:53,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271338204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:48:53,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:48:53,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:48:53,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188023438] [2022-07-21 05:48:53,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:48:53,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:48:53,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:48:53,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:48:53,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:48:53,125 INFO L87 Difference]: Start difference. First operand 5632 states and 7341 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:55,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:48:55,159 INFO L93 Difference]: Finished difference Result 11309 states and 14761 transitions. [2022-07-21 05:48:55,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:48:55,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-21 05:48:55,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:48:55,189 INFO L225 Difference]: With dead ends: 11309 [2022-07-21 05:48:55,189 INFO L226 Difference]: Without dead ends: 7079 [2022-07-21 05:48:55,199 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 [2022-07-21 05:48:55,200 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 11515 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11515 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 05:48:55,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11515 Valid, 2246 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 05:48:55,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2022-07-21 05:48:55,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 7059. [2022-07-21 05:48:55,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7059 states, 7042 states have (on average 1.3092871343368362) internal successors, (9220), 7058 states have internal predecessors, (9220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:55,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7059 states to 7059 states and 9220 transitions. [2022-07-21 05:48:55,618 INFO L78 Accepts]: Start accepts. Automaton has 7059 states and 9220 transitions. Word has length 66 [2022-07-21 05:48:55,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:48:55,618 INFO L495 AbstractCegarLoop]: Abstraction has 7059 states and 9220 transitions. [2022-07-21 05:48:55,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 7059 states and 9220 transitions. [2022-07-21 05:48:55,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 05:48:55,626 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:48:55,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:48:55,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:48:55,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:48:55,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:48:55,628 INFO L85 PathProgramCache]: Analyzing trace with hash 280890183, now seen corresponding path program 1 times [2022-07-21 05:48:55,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:48:55,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520827498] [2022-07-21 05:48:55,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:48:55,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:48:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:48:55,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:48:55,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:48:55,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520827498] [2022-07-21 05:48:55,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520827498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:48:55,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:48:55,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:48:55,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53682745] [2022-07-21 05:48:55,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:48:55,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:48:55,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:48:55,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:48:55,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:48:55,737 INFO L87 Difference]: Start difference. First operand 7059 states and 9220 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:57,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:48:57,330 INFO L93 Difference]: Finished difference Result 13777 states and 18169 transitions. [2022-07-21 05:48:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:48:57,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-21 05:48:57,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:48:57,360 INFO L225 Difference]: With dead ends: 13777 [2022-07-21 05:48:57,361 INFO L226 Difference]: Without dead ends: 9203 [2022-07-21 05:48:57,369 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 [2022-07-21 05:48:57,370 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 9693 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9693 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:48:57,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9693 Valid, 2010 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 05:48:57,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9203 states. [2022-07-21 05:48:57,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9203 to 9163. [2022-07-21 05:48:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9163 states, 9146 states have (on average 1.323092062103652) internal successors, (12101), 9162 states have internal predecessors, (12101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:57,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9163 states to 9163 states and 12101 transitions. [2022-07-21 05:48:57,906 INFO L78 Accepts]: Start accepts. Automaton has 9163 states and 12101 transitions. Word has length 67 [2022-07-21 05:48:57,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:48:57,907 INFO L495 AbstractCegarLoop]: Abstraction has 9163 states and 12101 transitions. [2022-07-21 05:48:57,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:48:57,908 INFO L276 IsEmpty]: Start isEmpty. Operand 9163 states and 12101 transitions. [2022-07-21 05:48:57,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 05:48:57,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:48:57,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:48:57,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:48:57,916 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:48:57,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:48:57,917 INFO L85 PathProgramCache]: Analyzing trace with hash 533009189, now seen corresponding path program 1 times [2022-07-21 05:48:57,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:48:57,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153052894] [2022-07-21 05:48:57,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:48:57,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:48:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:48:58,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:48:58,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:48:58,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153052894] [2022-07-21 05:48:58,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153052894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:48:58,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:48:58,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:48:58,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433774706] [2022-07-21 05:48:58,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:48:58,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 05:48:58,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:48:58,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 05:48:58,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:48:58,117 INFO L87 Difference]: Start difference. First operand 9163 states and 12101 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:01,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:49:01,045 INFO L93 Difference]: Finished difference Result 14406 states and 19714 transitions. [2022-07-21 05:49:01,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 05:49:01,046 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-21 05:49:01,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:49:01,073 INFO L225 Difference]: With dead ends: 14406 [2022-07-21 05:49:01,074 INFO L226 Difference]: Without dead ends: 12872 [2022-07-21 05:49:01,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-21 05:49:01,082 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 10386 mSDsluCounter, 3623 mSDsCounter, 0 mSdLazyCounter, 4339 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10386 SdHoareTripleChecker+Valid, 5156 SdHoareTripleChecker+Invalid, 4440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 4339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:49:01,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10386 Valid, 5156 Invalid, 4440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 4339 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-21 05:49:01,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12872 states. [2022-07-21 05:49:01,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12872 to 9003. [2022-07-21 05:49:01,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9003 states, 8986 states have (on average 1.3225016692632985) internal successors, (11884), 9002 states have internal predecessors, (11884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:01,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9003 states to 9003 states and 11884 transitions. [2022-07-21 05:49:01,549 INFO L78 Accepts]: Start accepts. Automaton has 9003 states and 11884 transitions. Word has length 68 [2022-07-21 05:49:01,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:49:01,549 INFO L495 AbstractCegarLoop]: Abstraction has 9003 states and 11884 transitions. [2022-07-21 05:49:01,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:01,550 INFO L276 IsEmpty]: Start isEmpty. Operand 9003 states and 11884 transitions. [2022-07-21 05:49:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 05:49:01,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:49:01,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:49:01,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:49:01,558 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:49:01,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:49:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1802238869, now seen corresponding path program 1 times [2022-07-21 05:49:01,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:49:01,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54222547] [2022-07-21 05:49:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:49:01,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:49:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:49:01,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:49:01,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:49:01,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54222547] [2022-07-21 05:49:01,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54222547] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:49:01,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:49:01,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:49:01,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313384757] [2022-07-21 05:49:01,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:49:01,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:49:01,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:49:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:49:01,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:49:01,767 INFO L87 Difference]: Start difference. First operand 9003 states and 11884 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:06,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:49:06,310 INFO L93 Difference]: Finished difference Result 17830 states and 24364 transitions. [2022-07-21 05:49:06,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:49:06,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-21 05:49:06,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:49:06,346 INFO L225 Difference]: With dead ends: 17830 [2022-07-21 05:49:06,346 INFO L226 Difference]: Without dead ends: 16418 [2022-07-21 05:49:06,356 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 [2022-07-21 05:49:06,357 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 12254 mSDsluCounter, 7063 mSDsCounter, 0 mSdLazyCounter, 8503 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12254 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 8824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 8503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:49:06,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12254 Valid, 8641 Invalid, 8824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 8503 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-21 05:49:06,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16418 states. [2022-07-21 05:49:06,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16418 to 8941. [2022-07-21 05:49:06,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8941 states, 8924 states have (on average 1.3221649484536082) internal successors, (11799), 8940 states have internal predecessors, (11799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8941 states to 8941 states and 11799 transitions. [2022-07-21 05:49:06,889 INFO L78 Accepts]: Start accepts. Automaton has 8941 states and 11799 transitions. Word has length 68 [2022-07-21 05:49:06,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:49:06,890 INFO L495 AbstractCegarLoop]: Abstraction has 8941 states and 11799 transitions. [2022-07-21 05:49:06,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 8941 states and 11799 transitions. [2022-07-21 05:49:06,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 05:49:06,897 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:49:06,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:49:06,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:49:06,898 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:49:06,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:49:06,898 INFO L85 PathProgramCache]: Analyzing trace with hash 2141707383, now seen corresponding path program 1 times [2022-07-21 05:49:06,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:49:06,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9025949] [2022-07-21 05:49:06,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:49:06,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:49:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:49:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:49:07,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:49:07,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9025949] [2022-07-21 05:49:07,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9025949] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:49:07,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:49:07,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 05:49:07,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991095783] [2022-07-21 05:49:07,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:49:07,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 05:49:07,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:49:07,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 05:49:07,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-21 05:49:07,280 INFO L87 Difference]: Start difference. First operand 8941 states and 11799 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:11,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:49:11,342 INFO L93 Difference]: Finished difference Result 20874 states and 29215 transitions. [2022-07-21 05:49:11,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-21 05:49:11,343 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-21 05:49:11,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:49:11,378 INFO L225 Difference]: With dead ends: 20874 [2022-07-21 05:49:11,379 INFO L226 Difference]: Without dead ends: 20870 [2022-07-21 05:49:11,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2022-07-21 05:49:11,388 INFO L413 NwaCegarLoop]: 2713 mSDtfsCounter, 21031 mSDsluCounter, 17065 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21031 SdHoareTripleChecker+Valid, 19778 SdHoareTripleChecker+Invalid, 3006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:49:11,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21031 Valid, 19778 Invalid, 3006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 2627 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-21 05:49:11,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20870 states. [2022-07-21 05:49:12,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20870 to 8937. [2022-07-21 05:49:12,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8937 states, 8921 states have (on average 1.3221611926914023) internal successors, (11795), 8936 states have internal predecessors, (11795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:12,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 11795 transitions. [2022-07-21 05:49:12,308 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 11795 transitions. Word has length 69 [2022-07-21 05:49:12,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:49:12,309 INFO L495 AbstractCegarLoop]: Abstraction has 8937 states and 11795 transitions. [2022-07-21 05:49:12,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:12,309 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 11795 transitions. [2022-07-21 05:49:12,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 05:49:12,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:49:12,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:49:12,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 05:49:12,317 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:49:12,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:49:12,318 INFO L85 PathProgramCache]: Analyzing trace with hash -50233035, now seen corresponding path program 1 times [2022-07-21 05:49:12,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:49:12,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845185423] [2022-07-21 05:49:12,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:49:12,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:49:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:49:12,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:49:12,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:49:12,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845185423] [2022-07-21 05:49:12,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845185423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:49:12,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:49:12,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:49:12,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457701215] [2022-07-21 05:49:12,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:49:12,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:49:12,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:49:12,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:49:12,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:49:12,454 INFO L87 Difference]: Start difference. First operand 8937 states and 11795 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:15,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:49:15,496 INFO L93 Difference]: Finished difference Result 10524 states and 13940 transitions. [2022-07-21 05:49:15,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:49:15,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-21 05:49:15,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:49:15,515 INFO L225 Difference]: With dead ends: 10524 [2022-07-21 05:49:15,515 INFO L226 Difference]: Without dead ends: 10518 [2022-07-21 05:49:15,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-21 05:49:15,520 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 13448 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 5080 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13448 SdHoareTripleChecker+Valid, 6225 SdHoareTripleChecker+Invalid, 5332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 5080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:49:15,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13448 Valid, 6225 Invalid, 5332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 5080 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 05:49:15,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10518 states. [2022-07-21 05:49:16,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10518 to 8937. [2022-07-21 05:49:16,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8937 states, 8921 states have (on average 1.3220490976347943) internal successors, (11794), 8936 states have internal predecessors, (11794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 11794 transitions. [2022-07-21 05:49:16,330 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 11794 transitions. Word has length 69 [2022-07-21 05:49:16,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:49:16,330 INFO L495 AbstractCegarLoop]: Abstraction has 8937 states and 11794 transitions. [2022-07-21 05:49:16,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:16,331 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 11794 transitions. [2022-07-21 05:49:16,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 05:49:16,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:49:16,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:49:16,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 05:49:16,342 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:49:16,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:49:16,342 INFO L85 PathProgramCache]: Analyzing trace with hash 487125926, now seen corresponding path program 1 times [2022-07-21 05:49:16,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:49:16,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61157211] [2022-07-21 05:49:16,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:49:16,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:49:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:49:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:49:16,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:49:16,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61157211] [2022-07-21 05:49:16,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61157211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:49:16,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:49:16,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:49:16,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521022086] [2022-07-21 05:49:16,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:49:16,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:49:16,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:49:16,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:49:16,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:49:16,514 INFO L87 Difference]: Start difference. First operand 8937 states and 11794 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:19,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:49:19,961 INFO L93 Difference]: Finished difference Result 11304 states and 14876 transitions. [2022-07-21 05:49:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:49:19,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-21 05:49:19,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:49:19,979 INFO L225 Difference]: With dead ends: 11304 [2022-07-21 05:49:19,979 INFO L226 Difference]: Without dead ends: 11295 [2022-07-21 05:49:19,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-21 05:49:19,984 INFO L413 NwaCegarLoop]: 1437 mSDtfsCounter, 13776 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 5384 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13776 SdHoareTripleChecker+Valid, 6087 SdHoareTripleChecker+Invalid, 5733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 5384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:49:19,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13776 Valid, 6087 Invalid, 5733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 5384 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-21 05:49:19,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11295 states. [2022-07-21 05:49:20,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11295 to 8937. [2022-07-21 05:49:20,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8937 states, 8921 states have (on average 1.3219370025781862) internal successors, (11793), 8936 states have internal predecessors, (11793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:20,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 11793 transitions. [2022-07-21 05:49:20,776 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 11793 transitions. Word has length 69 [2022-07-21 05:49:20,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:49:20,777 INFO L495 AbstractCegarLoop]: Abstraction has 8937 states and 11793 transitions. [2022-07-21 05:49:20,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 11793 transitions. [2022-07-21 05:49:20,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 05:49:20,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:49:20,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:49:20,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 05:49:20,785 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:49:20,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:49:20,785 INFO L85 PathProgramCache]: Analyzing trace with hash -465119641, now seen corresponding path program 1 times [2022-07-21 05:49:20,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:49:20,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659716110] [2022-07-21 05:49:20,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:49:20,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:49:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:49:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:49:21,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:49:21,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659716110] [2022-07-21 05:49:21,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659716110] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:49:21,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:49:21,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 05:49:21,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990574807] [2022-07-21 05:49:21,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:49:21,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 05:49:21,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:49:21,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 05:49:21,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:49:21,107 INFO L87 Difference]: Start difference. First operand 8937 states and 11793 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:26,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:49:26,610 INFO L93 Difference]: Finished difference Result 24526 states and 34369 transitions. [2022-07-21 05:49:26,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 05:49:26,611 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-21 05:49:26,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:49:26,649 INFO L225 Difference]: With dead ends: 24526 [2022-07-21 05:49:26,649 INFO L226 Difference]: Without dead ends: 23111 [2022-07-21 05:49:26,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2022-07-21 05:49:26,662 INFO L413 NwaCegarLoop]: 2510 mSDtfsCounter, 23430 mSDsluCounter, 9044 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23430 SdHoareTripleChecker+Valid, 11554 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 05:49:26,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23430 Valid, 11554 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 05:49:26,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23111 states. [2022-07-21 05:49:27,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23111 to 8868. [2022-07-21 05:49:27,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8868 states, 8853 states have (on average 1.3218118152038858) internal successors, (11702), 8867 states have internal predecessors, (11702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8868 states to 8868 states and 11702 transitions. [2022-07-21 05:49:27,747 INFO L78 Accepts]: Start accepts. Automaton has 8868 states and 11702 transitions. Word has length 69 [2022-07-21 05:49:27,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:49:27,748 INFO L495 AbstractCegarLoop]: Abstraction has 8868 states and 11702 transitions. [2022-07-21 05:49:27,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:27,748 INFO L276 IsEmpty]: Start isEmpty. Operand 8868 states and 11702 transitions. [2022-07-21 05:49:27,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-21 05:49:27,756 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:49:27,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:49:27,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 05:49:27,757 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:49:27,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:49:27,758 INFO L85 PathProgramCache]: Analyzing trace with hash 215127807, now seen corresponding path program 1 times [2022-07-21 05:49:27,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:49:27,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668642707] [2022-07-21 05:49:27,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:49:27,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:49:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:49:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:49:28,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:49:28,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668642707] [2022-07-21 05:49:28,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668642707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:49:28,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:49:28,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:49:28,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292642986] [2022-07-21 05:49:28,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:49:28,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:49:28,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:49:28,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:49:28,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:49:28,029 INFO L87 Difference]: Start difference. First operand 8868 states and 11702 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:34,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:49:34,881 INFO L93 Difference]: Finished difference Result 25460 states and 35982 transitions. [2022-07-21 05:49:34,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 05:49:34,883 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-21 05:49:34,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:49:34,925 INFO L225 Difference]: With dead ends: 25460 [2022-07-21 05:49:34,925 INFO L226 Difference]: Without dead ends: 23881 [2022-07-21 05:49:34,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2022-07-21 05:49:34,936 INFO L413 NwaCegarLoop]: 3045 mSDtfsCounter, 16685 mSDsluCounter, 15571 mSDsCounter, 0 mSdLazyCounter, 3988 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16685 SdHoareTripleChecker+Valid, 18616 SdHoareTripleChecker+Invalid, 4346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 3988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:49:34,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16685 Valid, 18616 Invalid, 4346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 3988 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 05:49:34,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23881 states. [2022-07-21 05:49:36,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23881 to 8635. [2022-07-21 05:49:36,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8635 states, 8621 states have (on average 1.3195684955341607) internal successors, (11376), 8634 states have internal predecessors, (11376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:36,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8635 states to 8635 states and 11376 transitions. [2022-07-21 05:49:36,277 INFO L78 Accepts]: Start accepts. Automaton has 8635 states and 11376 transitions. Word has length 70 [2022-07-21 05:49:36,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:49:36,277 INFO L495 AbstractCegarLoop]: Abstraction has 8635 states and 11376 transitions. [2022-07-21 05:49:36,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:36,278 INFO L276 IsEmpty]: Start isEmpty. Operand 8635 states and 11376 transitions. [2022-07-21 05:49:36,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-21 05:49:36,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:49:36,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:49:36,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 05:49:36,285 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:49:36,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:49:36,286 INFO L85 PathProgramCache]: Analyzing trace with hash 502084112, now seen corresponding path program 1 times [2022-07-21 05:49:36,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:49:36,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998571699] [2022-07-21 05:49:36,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:49:36,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:49:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:49:36,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:49:36,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:49:36,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998571699] [2022-07-21 05:49:36,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998571699] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:49:36,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:49:36,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:49:36,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215867386] [2022-07-21 05:49:36,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:49:36,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:49:36,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:49:36,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:49:36,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:49:36,572 INFO L87 Difference]: Start difference. First operand 8635 states and 11376 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:42,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:49:42,764 INFO L93 Difference]: Finished difference Result 19804 states and 27582 transitions. [2022-07-21 05:49:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 05:49:42,765 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-21 05:49:42,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:49:42,793 INFO L225 Difference]: With dead ends: 19804 [2022-07-21 05:49:42,794 INFO L226 Difference]: Without dead ends: 19792 [2022-07-21 05:49:42,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-07-21 05:49:42,801 INFO L413 NwaCegarLoop]: 2630 mSDtfsCounter, 16576 mSDsluCounter, 12496 mSDsCounter, 0 mSdLazyCounter, 3404 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16576 SdHoareTripleChecker+Valid, 15126 SdHoareTripleChecker+Invalid, 3764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 3404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 05:49:42,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16576 Valid, 15126 Invalid, 3764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 3404 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 05:49:42,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19792 states. [2022-07-21 05:49:43,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19792 to 8628. [2022-07-21 05:49:43,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8614 states have (on average 1.3197120965869515) internal successors, (11368), 8627 states have internal predecessors, (11368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:44,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 11368 transitions. [2022-07-21 05:49:44,010 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 11368 transitions. Word has length 70 [2022-07-21 05:49:44,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:49:44,010 INFO L495 AbstractCegarLoop]: Abstraction has 8628 states and 11368 transitions. [2022-07-21 05:49:44,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 11368 transitions. [2022-07-21 05:49:44,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-21 05:49:44,017 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:49:44,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:49:44,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 05:49:44,018 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:49:44,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:49:44,018 INFO L85 PathProgramCache]: Analyzing trace with hash -683220265, now seen corresponding path program 1 times [2022-07-21 05:49:44,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:49:44,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916751562] [2022-07-21 05:49:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:49:44,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:49:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:49:44,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:49:44,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:49:44,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916751562] [2022-07-21 05:49:44,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916751562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:49:44,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:49:44,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:49:44,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142983166] [2022-07-21 05:49:44,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:49:44,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:49:44,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:49:44,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:49:44,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:49:44,098 INFO L87 Difference]: Start difference. First operand 8628 states and 11368 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:45,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:49:45,421 INFO L93 Difference]: Finished difference Result 12563 states and 16874 transitions. [2022-07-21 05:49:45,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:49:45,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-21 05:49:45,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:49:45,428 INFO L225 Difference]: With dead ends: 12563 [2022-07-21 05:49:45,428 INFO L226 Difference]: Without dead ends: 7645 [2022-07-21 05:49:45,433 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 [2022-07-21 05:49:45,433 INFO L413 NwaCegarLoop]: 1950 mSDtfsCounter, 1923 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:49:45,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 2623 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:49:45,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2022-07-21 05:49:46,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 7626. [2022-07-21 05:49:46,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 7616 states have (on average 1.337841386554622) internal successors, (10189), 7625 states have internal predecessors, (10189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:46,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10189 transitions. [2022-07-21 05:49:46,654 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10189 transitions. Word has length 70 [2022-07-21 05:49:46,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:49:46,654 INFO L495 AbstractCegarLoop]: Abstraction has 7626 states and 10189 transitions. [2022-07-21 05:49:46,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:46,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10189 transitions. [2022-07-21 05:49:46,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 05:49:46,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:49:46,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:49:46,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 05:49:46,660 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:49:46,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:49:46,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1404122129, now seen corresponding path program 1 times [2022-07-21 05:49:46,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:49:46,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727407391] [2022-07-21 05:49:46,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:49:46,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:49:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:49:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:49:46,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:49:46,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727407391] [2022-07-21 05:49:46,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727407391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:49:46,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:49:46,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:49:46,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356502981] [2022-07-21 05:49:46,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:49:46,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:49:46,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:49:46,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:49:46,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:49:46,819 INFO L87 Difference]: Start difference. First operand 7626 states and 10189 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:51,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:49:51,527 INFO L93 Difference]: Finished difference Result 15142 states and 21091 transitions. [2022-07-21 05:49:51,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:49:51,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-21 05:49:51,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:49:51,544 INFO L225 Difference]: With dead ends: 15142 [2022-07-21 05:49:51,544 INFO L226 Difference]: Without dead ends: 13134 [2022-07-21 05:49:51,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 05:49:51,552 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 10890 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 4237 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10890 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 4481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 4237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 05:49:51,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10890 Valid, 4831 Invalid, 4481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 4237 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 05:49:51,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13134 states. [2022-07-21 05:49:52,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13134 to 7626. [2022-07-21 05:49:52,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 7616 states have (on average 1.3377100840336134) internal successors, (10188), 7625 states have internal predecessors, (10188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:52,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10188 transitions. [2022-07-21 05:49:52,846 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10188 transitions. Word has length 71 [2022-07-21 05:49:52,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:49:52,846 INFO L495 AbstractCegarLoop]: Abstraction has 7626 states and 10188 transitions. [2022-07-21 05:49:52,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:49:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10188 transitions. [2022-07-21 05:49:52,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 05:49:52,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:49:52,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:49:52,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 05:49:52,853 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:49:52,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:49:52,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1017361466, now seen corresponding path program 1 times [2022-07-21 05:49:52,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:49:52,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804001464] [2022-07-21 05:49:52,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:49:52,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:49:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:49:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:49:53,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:49:53,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804001464] [2022-07-21 05:49:53,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804001464] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:49:53,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:49:53,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:49:53,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12920604] [2022-07-21 05:49:53,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:49:53,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:49:53,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:49:53,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:49:53,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:49:53,024 INFO L87 Difference]: Start difference. First operand 7626 states and 10188 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:00,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:00,102 INFO L93 Difference]: Finished difference Result 18792 states and 26289 transitions. [2022-07-21 05:50:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:50:00,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-21 05:50:00,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:00,122 INFO L225 Difference]: With dead ends: 18792 [2022-07-21 05:50:00,122 INFO L226 Difference]: Without dead ends: 16715 [2022-07-21 05:50:00,126 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 [2022-07-21 05:50:00,126 INFO L413 NwaCegarLoop]: 1225 mSDtfsCounter, 9287 mSDsluCounter, 5512 mSDsCounter, 0 mSdLazyCounter, 6453 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9287 SdHoareTripleChecker+Valid, 6737 SdHoareTripleChecker+Invalid, 6675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 6453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:00,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9287 Valid, 6737 Invalid, 6675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 6453 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 05:50:00,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16715 states. [2022-07-21 05:50:01,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16715 to 7626. [2022-07-21 05:50:01,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 7616 states have (on average 1.337578781512605) internal successors, (10187), 7625 states have internal predecessors, (10187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:01,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10187 transitions. [2022-07-21 05:50:01,488 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10187 transitions. Word has length 71 [2022-07-21 05:50:01,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:01,489 INFO L495 AbstractCegarLoop]: Abstraction has 7626 states and 10187 transitions. [2022-07-21 05:50:01,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:01,489 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10187 transitions. [2022-07-21 05:50:01,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 05:50:01,494 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:01,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:50:01,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 05:50:01,494 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:50:01,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:01,495 INFO L85 PathProgramCache]: Analyzing trace with hash 325375151, now seen corresponding path program 1 times [2022-07-21 05:50:01,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:01,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212484161] [2022-07-21 05:50:01,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:01,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:01,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:01,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212484161] [2022-07-21 05:50:01,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212484161] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:01,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:01,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:50:01,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116383988] [2022-07-21 05:50:01,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:01,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 05:50:01,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:01,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 05:50:01,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:50:01,640 INFO L87 Difference]: Start difference. First operand 7626 states and 10187 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:06,123 INFO L93 Difference]: Finished difference Result 14599 states and 20459 transitions. [2022-07-21 05:50:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 05:50:06,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-21 05:50:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:06,137 INFO L225 Difference]: With dead ends: 14599 [2022-07-21 05:50:06,137 INFO L226 Difference]: Without dead ends: 12178 [2022-07-21 05:50:06,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-21 05:50:06,141 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 9068 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9068 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 3552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:06,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9068 Valid, 4384 Invalid, 3552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-21 05:50:06,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2022-07-21 05:50:07,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 7626. [2022-07-21 05:50:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 7616 states have (on average 1.3374474789915967) internal successors, (10186), 7625 states have internal predecessors, (10186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:07,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10186 transitions. [2022-07-21 05:50:07,503 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10186 transitions. Word has length 71 [2022-07-21 05:50:07,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:07,503 INFO L495 AbstractCegarLoop]: Abstraction has 7626 states and 10186 transitions. [2022-07-21 05:50:07,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:07,503 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10186 transitions. [2022-07-21 05:50:07,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 05:50:07,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:07,507 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] [2022-07-21 05:50:07,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 05:50:07,508 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:50:07,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:07,508 INFO L85 PathProgramCache]: Analyzing trace with hash 912295609, now seen corresponding path program 1 times [2022-07-21 05:50:07,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:07,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310436392] [2022-07-21 05:50:07,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:07,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:07,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:07,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310436392] [2022-07-21 05:50:07,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310436392] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:07,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:07,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:50:07,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569838155] [2022-07-21 05:50:07,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:07,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:50:07,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:07,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:50:07,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:50:07,569 INFO L87 Difference]: Start difference. First operand 7626 states and 10186 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:09,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:09,415 INFO L93 Difference]: Finished difference Result 12203 states and 16633 transitions. [2022-07-21 05:50:09,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:50:09,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-21 05:50:09,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:09,424 INFO L225 Difference]: With dead ends: 12203 [2022-07-21 05:50:09,424 INFO L226 Difference]: Without dead ends: 7439 [2022-07-21 05:50:09,429 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 [2022-07-21 05:50:09,430 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 1522 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:09,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 2011 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:50:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7439 states. [2022-07-21 05:50:11,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7439 to 7431. [2022-07-21 05:50:11,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7431 states, 7424 states have (on average 1.3615301724137931) internal successors, (10108), 7430 states have internal predecessors, (10108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:11,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7431 states to 7431 states and 10108 transitions. [2022-07-21 05:50:11,086 INFO L78 Accepts]: Start accepts. Automaton has 7431 states and 10108 transitions. Word has length 71 [2022-07-21 05:50:11,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:11,086 INFO L495 AbstractCegarLoop]: Abstraction has 7431 states and 10108 transitions. [2022-07-21 05:50:11,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:11,086 INFO L276 IsEmpty]: Start isEmpty. Operand 7431 states and 10108 transitions. [2022-07-21 05:50:11,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 05:50:11,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:11,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:50:11,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 05:50:11,092 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:50:11,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:11,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2097366389, now seen corresponding path program 1 times [2022-07-21 05:50:11,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:11,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048835321] [2022-07-21 05:50:11,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:11,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:11,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:11,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048835321] [2022-07-21 05:50:11,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048835321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:11,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:11,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:50:11,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547873609] [2022-07-21 05:50:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:11,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:50:11,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:11,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:50:11,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:50:11,162 INFO L87 Difference]: Start difference. First operand 7431 states and 10108 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:14,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:14,208 INFO L93 Difference]: Finished difference Result 15591 states and 21752 transitions. [2022-07-21 05:50:14,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:50:14,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-21 05:50:14,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:14,223 INFO L225 Difference]: With dead ends: 15591 [2022-07-21 05:50:14,223 INFO L226 Difference]: Without dead ends: 11588 [2022-07-21 05:50:14,228 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 [2022-07-21 05:50:14,229 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 1021 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:14,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 3016 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:50:14,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11588 states. [2022-07-21 05:50:17,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11588 to 11580. [2022-07-21 05:50:17,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11580 states, 11573 states have (on average 1.3706039920504622) internal successors, (15862), 11579 states have internal predecessors, (15862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:17,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11580 states to 11580 states and 15862 transitions. [2022-07-21 05:50:17,036 INFO L78 Accepts]: Start accepts. Automaton has 11580 states and 15862 transitions. Word has length 72 [2022-07-21 05:50:17,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:17,036 INFO L495 AbstractCegarLoop]: Abstraction has 11580 states and 15862 transitions. [2022-07-21 05:50:17,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:17,036 INFO L276 IsEmpty]: Start isEmpty. Operand 11580 states and 15862 transitions. [2022-07-21 05:50:17,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 05:50:17,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:17,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:50:17,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 05:50:17,041 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:50:17,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:17,042 INFO L85 PathProgramCache]: Analyzing trace with hash -804939217, now seen corresponding path program 1 times [2022-07-21 05:50:17,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:17,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816022577] [2022-07-21 05:50:17,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:17,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:17,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:17,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816022577] [2022-07-21 05:50:17,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816022577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:17,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:17,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:50:17,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333562009] [2022-07-21 05:50:17,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:17,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:50:17,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:17,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:50:17,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:50:17,106 INFO L87 Difference]: Start difference. First operand 11580 states and 15862 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:20,978 INFO L93 Difference]: Finished difference Result 20106 states and 28655 transitions. [2022-07-21 05:50:20,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:50:20,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-21 05:50:20,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:21,000 INFO L225 Difference]: With dead ends: 20106 [2022-07-21 05:50:21,000 INFO L226 Difference]: Without dead ends: 13738 [2022-07-21 05:50:21,010 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 [2022-07-21 05:50:21,010 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 933 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:21,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 2354 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:50:21,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13738 states. [2022-07-21 05:50:24,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13738 to 11086. [2022-07-21 05:50:24,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11086 states, 11079 states have (on average 1.396154887625237) internal successors, (15468), 11085 states have internal predecessors, (15468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11086 states to 11086 states and 15468 transitions. [2022-07-21 05:50:24,230 INFO L78 Accepts]: Start accepts. Automaton has 11086 states and 15468 transitions. Word has length 72 [2022-07-21 05:50:24,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:24,230 INFO L495 AbstractCegarLoop]: Abstraction has 11086 states and 15468 transitions. [2022-07-21 05:50:24,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:24,231 INFO L276 IsEmpty]: Start isEmpty. Operand 11086 states and 15468 transitions. [2022-07-21 05:50:24,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 05:50:24,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:24,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:50:24,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 05:50:24,235 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:50:24,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:24,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1735047217, now seen corresponding path program 1 times [2022-07-21 05:50:24,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:24,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625138831] [2022-07-21 05:50:24,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:24,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:24,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:24,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:24,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625138831] [2022-07-21 05:50:24,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625138831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:24,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:24,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:50:24,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125883285] [2022-07-21 05:50:24,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:24,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:50:24,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:24,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:50:24,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:50:24,304 INFO L87 Difference]: Start difference. First operand 11086 states and 15468 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:29,780 INFO L93 Difference]: Finished difference Result 25777 states and 36676 transitions. [2022-07-21 05:50:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:50:29,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-21 05:50:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:29,803 INFO L225 Difference]: With dead ends: 25777 [2022-07-21 05:50:29,803 INFO L226 Difference]: Without dead ends: 17652 [2022-07-21 05:50:29,813 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 [2022-07-21 05:50:29,814 INFO L413 NwaCegarLoop]: 1788 mSDtfsCounter, 866 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:29,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 3011 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:50:29,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17652 states. [2022-07-21 05:50:35,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17652 to 17644. [2022-07-21 05:50:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17644 states, 17637 states have (on average 1.3947383341838182) internal successors, (24599), 17643 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17644 states to 17644 states and 24599 transitions. [2022-07-21 05:50:35,102 INFO L78 Accepts]: Start accepts. Automaton has 17644 states and 24599 transitions. Word has length 72 [2022-07-21 05:50:35,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:35,103 INFO L495 AbstractCegarLoop]: Abstraction has 17644 states and 24599 transitions. [2022-07-21 05:50:35,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:35,103 INFO L276 IsEmpty]: Start isEmpty. Operand 17644 states and 24599 transitions. [2022-07-21 05:50:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 05:50:35,108 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:35,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:50:35,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 05:50:35,108 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:50:35,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:35,109 INFO L85 PathProgramCache]: Analyzing trace with hash -746860976, now seen corresponding path program 1 times [2022-07-21 05:50:35,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:35,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685684299] [2022-07-21 05:50:35,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:35,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:35,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:35,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:35,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685684299] [2022-07-21 05:50:35,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685684299] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:35,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:35,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:50:35,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307792070] [2022-07-21 05:50:35,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:35,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:50:35,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:35,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:50:35,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:50:35,169 INFO L87 Difference]: Start difference. First operand 17644 states and 24599 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:42,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:42,051 INFO L93 Difference]: Finished difference Result 35075 states and 49603 transitions. [2022-07-21 05:50:42,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:50:42,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-21 05:50:42,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:42,073 INFO L225 Difference]: With dead ends: 35075 [2022-07-21 05:50:42,074 INFO L226 Difference]: Without dead ends: 19281 [2022-07-21 05:50:42,085 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 [2022-07-21 05:50:42,086 INFO L413 NwaCegarLoop]: 1515 mSDtfsCounter, 1255 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:42,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 2113 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:50:42,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19281 states. [2022-07-21 05:50:46,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19281 to 15437. [2022-07-21 05:50:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15437 states, 15430 states have (on average 1.4129617627997408) internal successors, (21802), 15436 states have internal predecessors, (21802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:47,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 21802 transitions. [2022-07-21 05:50:47,011 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 21802 transitions. Word has length 73 [2022-07-21 05:50:47,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:47,011 INFO L495 AbstractCegarLoop]: Abstraction has 15437 states and 21802 transitions. [2022-07-21 05:50:47,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:47,012 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 21802 transitions. [2022-07-21 05:50:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 05:50:47,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:47,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:50:47,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 05:50:47,015 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:50:47,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:47,015 INFO L85 PathProgramCache]: Analyzing trace with hash 202006294, now seen corresponding path program 1 times [2022-07-21 05:50:47,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:47,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961796341] [2022-07-21 05:50:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:47,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:47,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:47,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961796341] [2022-07-21 05:50:47,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961796341] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:47,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:47,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:50:47,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464375091] [2022-07-21 05:50:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:47,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:50:47,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:47,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:50:47,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:50:47,161 INFO L87 Difference]: Start difference. First operand 15437 states and 21802 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:55,365 INFO L93 Difference]: Finished difference Result 20127 states and 28268 transitions. [2022-07-21 05:50:55,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:50:55,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-21 05:50:55,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:55,392 INFO L225 Difference]: With dead ends: 20127 [2022-07-21 05:50:55,392 INFO L226 Difference]: Without dead ends: 19917 [2022-07-21 05:50:55,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 05:50:55,400 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 7472 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7472 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 2950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:55,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7472 Valid, 3706 Invalid, 2950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 05:50:55,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19917 states. [2022-07-21 05:51:00,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19917 to 15432. [2022-07-21 05:51:00,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15432 states, 15425 states have (on average 1.412836304700162) internal successors, (21793), 15431 states have internal predecessors, (21793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15432 states to 15432 states and 21793 transitions. [2022-07-21 05:51:00,407 INFO L78 Accepts]: Start accepts. Automaton has 15432 states and 21793 transitions. Word has length 73 [2022-07-21 05:51:00,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:00,407 INFO L495 AbstractCegarLoop]: Abstraction has 15432 states and 21793 transitions. [2022-07-21 05:51:00,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:00,407 INFO L276 IsEmpty]: Start isEmpty. Operand 15432 states and 21793 transitions. [2022-07-21 05:51:00,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 05:51:00,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:00,410 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] [2022-07-21 05:51:00,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 05:51:00,411 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:51:00,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:00,411 INFO L85 PathProgramCache]: Analyzing trace with hash 33022288, now seen corresponding path program 1 times [2022-07-21 05:51:00,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:00,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138018269] [2022-07-21 05:51:00,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:00,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:00,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:00,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:00,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138018269] [2022-07-21 05:51:00,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138018269] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:00,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:00,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:51:00,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308417706] [2022-07-21 05:51:00,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:00,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:51:00,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:00,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:51:00,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:00,466 INFO L87 Difference]: Start difference. First operand 15432 states and 21793 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:06,389 INFO L93 Difference]: Finished difference Result 31667 states and 45320 transitions. [2022-07-21 05:51:06,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:51:06,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-21 05:51:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:06,416 INFO L225 Difference]: With dead ends: 31667 [2022-07-21 05:51:06,416 INFO L226 Difference]: Without dead ends: 17490 [2022-07-21 05:51:06,431 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 [2022-07-21 05:51:06,432 INFO L413 NwaCegarLoop]: 1368 mSDtfsCounter, 1309 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:06,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 1873 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:51:06,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17490 states. [2022-07-21 05:51:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17490 to 14011. [2022-07-21 05:51:11,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14011 states, 14004 states have (on average 1.429020279920023) internal successors, (20012), 14010 states have internal predecessors, (20012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:11,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14011 states to 14011 states and 20012 transitions. [2022-07-21 05:51:11,249 INFO L78 Accepts]: Start accepts. Automaton has 14011 states and 20012 transitions. Word has length 73 [2022-07-21 05:51:11,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:11,249 INFO L495 AbstractCegarLoop]: Abstraction has 14011 states and 20012 transitions. [2022-07-21 05:51:11,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:11,249 INFO L276 IsEmpty]: Start isEmpty. Operand 14011 states and 20012 transitions. [2022-07-21 05:51:11,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 05:51:11,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:11,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:11,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-21 05:51:11,253 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:51:11,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:11,253 INFO L85 PathProgramCache]: Analyzing trace with hash -361494476, now seen corresponding path program 1 times [2022-07-21 05:51:11,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:11,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811395527] [2022-07-21 05:51:11,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:11,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:11,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:11,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811395527] [2022-07-21 05:51:11,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811395527] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:11,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:11,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:51:11,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011113926] [2022-07-21 05:51:11,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:11,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:51:11,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:11,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:51:11,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:51:11,381 INFO L87 Difference]: Start difference. First operand 14011 states and 20012 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:22,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:22,279 INFO L93 Difference]: Finished difference Result 23848 states and 33846 transitions. [2022-07-21 05:51:22,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:51:22,280 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-21 05:51:22,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:22,310 INFO L225 Difference]: With dead ends: 23848 [2022-07-21 05:51:22,310 INFO L226 Difference]: Without dead ends: 23558 [2022-07-21 05:51:22,317 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 [2022-07-21 05:51:22,318 INFO L413 NwaCegarLoop]: 1062 mSDtfsCounter, 5342 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 3481 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5342 SdHoareTripleChecker+Valid, 4169 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 3481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:22,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5342 Valid, 4169 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 3481 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 05:51:22,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23558 states. [2022-07-21 05:51:27,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23558 to 14011. [2022-07-21 05:51:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14011 states, 14004 states have (on average 1.4289488717509282) internal successors, (20011), 14010 states have internal predecessors, (20011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14011 states to 14011 states and 20011 transitions. [2022-07-21 05:51:27,124 INFO L78 Accepts]: Start accepts. Automaton has 14011 states and 20011 transitions. Word has length 74 [2022-07-21 05:51:27,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:27,124 INFO L495 AbstractCegarLoop]: Abstraction has 14011 states and 20011 transitions. [2022-07-21 05:51:27,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:27,125 INFO L276 IsEmpty]: Start isEmpty. Operand 14011 states and 20011 transitions. [2022-07-21 05:51:27,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 05:51:27,127 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:27,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:27,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-21 05:51:27,128 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:51:27,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:27,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1074090996, now seen corresponding path program 1 times [2022-07-21 05:51:27,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:27,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70535708] [2022-07-21 05:51:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:27,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:27,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:27,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70535708] [2022-07-21 05:51:27,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70535708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:27,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:27,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:51:27,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94727641] [2022-07-21 05:51:27,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:27,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:51:27,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:27,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:51:27,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:51:27,263 INFO L87 Difference]: Start difference. First operand 14011 states and 20011 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:35,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:35,181 INFO L93 Difference]: Finished difference Result 18333 states and 26030 transitions. [2022-07-21 05:51:35,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:51:35,182 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-21 05:51:35,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:35,204 INFO L225 Difference]: With dead ends: 18333 [2022-07-21 05:51:35,204 INFO L226 Difference]: Without dead ends: 18122 [2022-07-21 05:51:35,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 05:51:35,209 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 7104 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 2660 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7104 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:35,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7104 Valid, 3574 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 05:51:35,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18122 states. [2022-07-21 05:51:39,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18122 to 14011. [2022-07-21 05:51:40,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14011 states, 14004 states have (on average 1.4288774635818338) internal successors, (20010), 14010 states have internal predecessors, (20010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:40,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14011 states to 14011 states and 20010 transitions. [2022-07-21 05:51:40,020 INFO L78 Accepts]: Start accepts. Automaton has 14011 states and 20010 transitions. Word has length 74 [2022-07-21 05:51:40,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:40,020 INFO L495 AbstractCegarLoop]: Abstraction has 14011 states and 20010 transitions. [2022-07-21 05:51:40,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:40,020 INFO L276 IsEmpty]: Start isEmpty. Operand 14011 states and 20010 transitions. [2022-07-21 05:51:40,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 05:51:40,022 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:40,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:40,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-21 05:51:40,022 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:51:40,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:40,023 INFO L85 PathProgramCache]: Analyzing trace with hash -281417774, now seen corresponding path program 1 times [2022-07-21 05:51:40,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:40,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925224484] [2022-07-21 05:51:40,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:40,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:40,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:40,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925224484] [2022-07-21 05:51:40,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925224484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:40,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:40,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:51:40,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270635863] [2022-07-21 05:51:40,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:40,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:51:40,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:40,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:51:40,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:51:40,158 INFO L87 Difference]: Start difference. First operand 14011 states and 20010 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:48,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:48,156 INFO L93 Difference]: Finished difference Result 18441 states and 26142 transitions. [2022-07-21 05:51:48,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:51:48,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-21 05:51:48,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:48,179 INFO L225 Difference]: With dead ends: 18441 [2022-07-21 05:51:48,179 INFO L226 Difference]: Without dead ends: 18208 [2022-07-21 05:51:48,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 05:51:48,185 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 6797 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 2914 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6797 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:48,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6797 Valid, 3779 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2914 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 05:51:48,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18208 states. [2022-07-21 05:51:52,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18208 to 14011. [2022-07-21 05:51:52,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14011 states, 14004 states have (on average 1.4288060554127393) internal successors, (20009), 14010 states have internal predecessors, (20009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14011 states to 14011 states and 20009 transitions. [2022-07-21 05:51:53,006 INFO L78 Accepts]: Start accepts. Automaton has 14011 states and 20009 transitions. Word has length 74 [2022-07-21 05:51:53,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:53,007 INFO L495 AbstractCegarLoop]: Abstraction has 14011 states and 20009 transitions. [2022-07-21 05:51:53,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:53,007 INFO L276 IsEmpty]: Start isEmpty. Operand 14011 states and 20009 transitions. [2022-07-21 05:51:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 05:51:53,009 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:53,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:51:53,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-21 05:51:53,009 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:51:53,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash -612402544, now seen corresponding path program 1 times [2022-07-21 05:51:53,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:53,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288297023] [2022-07-21 05:51:53,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:53,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:53,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:53,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:53,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288297023] [2022-07-21 05:51:53,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288297023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:53,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:53,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 05:51:53,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693282411] [2022-07-21 05:51:53,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:53,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:51:53,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:53,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:51:53,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:51:53,188 INFO L87 Difference]: Start difference. First operand 14011 states and 20009 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:16,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:52:16,412 INFO L93 Difference]: Finished difference Result 52209 states and 75125 transitions. [2022-07-21 05:52:16,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-21 05:52:16,413 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-21 05:52:16,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:52:16,509 INFO L225 Difference]: With dead ends: 52209 [2022-07-21 05:52:16,509 INFO L226 Difference]: Without dead ends: 51976 [2022-07-21 05:52:16,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=367, Invalid=1039, Unknown=0, NotChecked=0, Total=1406 [2022-07-21 05:52:16,523 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 12313 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 3618 mSolverCounterSat, 1046 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12313 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 4664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1046 IncrementalHoareTripleChecker+Valid, 3618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:52:16,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12313 Valid, 4384 Invalid, 4664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1046 Valid, 3618 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 05:52:16,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51976 states. [2022-07-21 05:52:22,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51976 to 14016. [2022-07-21 05:52:22,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14016 states, 14009 states have (on average 1.42865300878007) internal successors, (20014), 14015 states have internal predecessors, (20014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:22,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14016 states to 14016 states and 20014 transitions. [2022-07-21 05:52:22,118 INFO L78 Accepts]: Start accepts. Automaton has 14016 states and 20014 transitions. Word has length 74 [2022-07-21 05:52:22,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:52:22,118 INFO L495 AbstractCegarLoop]: Abstraction has 14016 states and 20014 transitions. [2022-07-21 05:52:22,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:22,118 INFO L276 IsEmpty]: Start isEmpty. Operand 14016 states and 20014 transitions. [2022-07-21 05:52:22,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 05:52:22,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:52:22,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:52:22,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-21 05:52:22,121 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:52:22,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:52:22,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1442340775, now seen corresponding path program 1 times [2022-07-21 05:52:22,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:52:22,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726034045] [2022-07-21 05:52:22,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:52:22,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:52:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:52:22,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:52:22,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:52:22,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726034045] [2022-07-21 05:52:22,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726034045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:52:22,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:52:22,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:52:22,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955882294] [2022-07-21 05:52:22,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:52:22,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:52:22,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:52:22,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:52:22,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:52:22,248 INFO L87 Difference]: Start difference. First operand 14016 states and 20014 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:31,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:52:31,175 INFO L93 Difference]: Finished difference Result 18338 states and 26033 transitions. [2022-07-21 05:52:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:52:31,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-21 05:52:31,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:52:31,195 INFO L225 Difference]: With dead ends: 18338 [2022-07-21 05:52:31,196 INFO L226 Difference]: Without dead ends: 18127 [2022-07-21 05:52:31,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 05:52:31,199 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 6970 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6970 SdHoareTripleChecker+Valid, 3689 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:52:31,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6970 Valid, 3689 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2704 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 05:52:31,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18127 states. [2022-07-21 05:52:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18127 to 14016. [2022-07-21 05:52:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14016 states, 14009 states have (on average 1.4285816260975088) internal successors, (20013), 14015 states have internal predecessors, (20013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14016 states to 14016 states and 20013 transitions. [2022-07-21 05:52:36,490 INFO L78 Accepts]: Start accepts. Automaton has 14016 states and 20013 transitions. Word has length 74 [2022-07-21 05:52:36,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:52:36,490 INFO L495 AbstractCegarLoop]: Abstraction has 14016 states and 20013 transitions. [2022-07-21 05:52:36,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:52:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 14016 states and 20013 transitions. [2022-07-21 05:52:36,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 05:52:36,492 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:52:36,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:52:36,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-21 05:52:36,493 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-21 05:52:36,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:52:36,493 INFO L85 PathProgramCache]: Analyzing trace with hash 426754260, now seen corresponding path program 1 times [2022-07-21 05:52:36,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:52:36,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799043848] [2022-07-21 05:52:36,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:52:36,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:52:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:52:36,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:52:36,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:52:36,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799043848] [2022-07-21 05:52:36,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799043848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:52:36,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:52:36,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:52:36,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363751518] [2022-07-21 05:52:36,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:52:36,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:52:36,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:52:36,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:52:36,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:52:36,637 INFO L87 Difference]: Start difference. First operand 14016 states and 20013 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)