./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-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 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 16:53:46,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 16:53:46,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 16:53:46,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 16:53:46,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 16:53:46,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 16:53:46,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 16:53:46,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 16:53:46,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 16:53:46,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 16:53:46,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 16:53:46,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 16:53:46,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 16:53:46,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 16:53:46,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 16:53:46,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 16:53:46,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 16:53:46,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 16:53:46,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 16:53:46,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 16:53:46,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 16:53:46,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 16:53:46,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 16:53:46,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 16:53:46,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 16:53:46,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 16:53:46,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 16:53:46,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 16:53:46,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 16:53:46,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 16:53:46,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 16:53:46,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 16:53:46,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 16:53:46,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 16:53:46,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 16:53:46,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 16:53:46,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 16:53:46,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 16:53:46,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 16:53:46,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 16:53:46,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 16:53:46,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 16:53:46,870 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 16:53:46,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 16:53:46,872 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 16:53:46,872 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 16:53:46,873 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 16:53:46,873 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 16:53:46,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 16:53:46,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 16:53:46,874 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 16:53:46,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 16:53:46,875 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 16:53:46,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 16:53:46,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 16:53:46,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 16:53:46,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 16:53:46,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 16:53:46,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 16:53:46,876 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 16:53:46,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 16:53:46,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 16:53:46,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 16:53:46,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 16:53:46,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 16:53:46,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 16:53:46,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:53:46,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 16:53:46,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 16:53:46,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 16:53:46,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 16:53:46,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 16:53:46,879 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 16:53:46,879 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 16:53:46,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 16:53:46,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 16:53:46,880 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 [2021-12-17 16:53:47,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 16:53:47,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 16:53:47,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 16:53:47,133 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 16:53:47,134 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 16:53:47,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-17 16:53:47,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639991623/1d53ca6aca5c4346b9bd88119c15a971/FLAG5e75415e7 [2021-12-17 16:53:47,866 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 16:53:47,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-17 16:53:47,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639991623/1d53ca6aca5c4346b9bd88119c15a971/FLAG5e75415e7 [2021-12-17 16:53:48,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639991623/1d53ca6aca5c4346b9bd88119c15a971 [2021-12-17 16:53:48,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 16:53:48,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 16:53:48,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 16:53:48,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 16:53:48,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 16:53:48,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:53:48" (1/1) ... [2021-12-17 16:53:48,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3b1763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:48, skipping insertion in model container [2021-12-17 16:53:48,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:53:48" (1/1) ... [2021-12-17 16:53:48,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 16:53:48,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 16:53:48,830 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2021-12-17 16:53:48,879 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21942,21955] [2021-12-17 16:53:48,887 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23299,23312] [2021-12-17 16:53:48,894 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24107,24120] [2021-12-17 16:53:48,911 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2021-12-17 16:53:48,919 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26600,26613] [2021-12-17 16:53:48,926 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27736,27749] [2021-12-17 16:53:48,937 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30390,30403] [2021-12-17 16:53:48,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31201,31214] [2021-12-17 16:53:48,960 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32340,32353] [2021-12-17 16:53:48,971 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34445,34458] [2021-12-17 16:53:48,987 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38533,38546] [2021-12-17 16:53:49,000 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39344,39357] [2021-12-17 16:53:49,007 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2021-12-17 16:53:49,016 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42588,42601] [2021-12-17 16:53:49,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[46127,46140] [2021-12-17 16:53:49,056 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2021-12-17 16:53:49,060 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[53384,53397] [2021-12-17 16:53:49,065 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54527,54540] [2021-12-17 16:53:49,074 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56636,56649] [2021-12-17 16:53:49,100 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2021-12-17 16:53:49,149 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2021-12-17 16:53:49,191 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79206,79219] [2021-12-17 16:53:49,196 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80017,80030] [2021-12-17 16:53:49,201 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[81156,81169] [2021-12-17 16:53:49,209 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2021-12-17 16:53:49,227 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2021-12-17 16:53:49,267 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92697,92710] [2021-12-17 16:53:49,298 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2021-12-17 16:53:49,803 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:53:49,817 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 16:53:49,898 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2021-12-17 16:53:49,908 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21942,21955] [2021-12-17 16:53:49,913 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23299,23312] [2021-12-17 16:53:49,916 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24107,24120] [2021-12-17 16:53:49,921 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2021-12-17 16:53:49,924 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26600,26613] [2021-12-17 16:53:49,928 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27736,27749] [2021-12-17 16:53:49,936 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30390,30403] [2021-12-17 16:53:49,939 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31201,31214] [2021-12-17 16:53:49,943 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32340,32353] [2021-12-17 16:53:49,949 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34445,34458] [2021-12-17 16:53:49,960 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38533,38546] [2021-12-17 16:53:49,963 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39344,39357] [2021-12-17 16:53:49,967 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2021-12-17 16:53:49,973 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42588,42601] [2021-12-17 16:53:49,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[46127,46140] [2021-12-17 16:53:50,000 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2021-12-17 16:53:50,004 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[53384,53397] [2021-12-17 16:53:50,008 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54527,54540] [2021-12-17 16:53:50,015 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56636,56649] [2021-12-17 16:53:50,026 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2021-12-17 16:53:50,043 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2021-12-17 16:53:50,073 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79206,79219] [2021-12-17 16:53:50,076 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80017,80030] [2021-12-17 16:53:50,080 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[81156,81169] [2021-12-17 16:53:50,086 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2021-12-17 16:53:50,114 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2021-12-17 16:53:50,130 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92697,92710] [2021-12-17 16:53:50,154 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2021-12-17 16:53:50,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:53:50,561 INFO L208 MainTranslator]: Completed translation [2021-12-17 16:53:50,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50 WrapperNode [2021-12-17 16:53:50,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 16:53:50,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 16:53:50,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 16:53:50,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 16:53:50,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (1/1) ... [2021-12-17 16:53:50,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (1/1) ... [2021-12-17 16:53:50,805 INFO L137 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12087 [2021-12-17 16:53:50,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 16:53:50,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 16:53:50,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 16:53:50,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 16:53:50,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (1/1) ... [2021-12-17 16:53:50,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (1/1) ... [2021-12-17 16:53:50,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (1/1) ... [2021-12-17 16:53:50,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (1/1) ... [2021-12-17 16:53:50,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (1/1) ... [2021-12-17 16:53:50,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (1/1) ... [2021-12-17 16:53:50,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (1/1) ... [2021-12-17 16:53:51,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 16:53:51,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 16:53:51,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 16:53:51,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 16:53:51,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (1/1) ... [2021-12-17 16:53:51,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:53:51,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 16:53:51,161 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) [2021-12-17 16:53:51,173 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 [2021-12-17 16:53:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 16:53:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 16:53:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 16:53:51,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 16:53:51,626 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 16:53:51,627 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 16:53:55,479 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 16:53:55,494 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 16:53:55,495 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 16:53:55,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:53:55 BoogieIcfgContainer [2021-12-17 16:53:55,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 16:53:55,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 16:53:55,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 16:53:55,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 16:53:55,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:53:48" (1/3) ... [2021-12-17 16:53:55,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f065cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:53:55, skipping insertion in model container [2021-12-17 16:53:55,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:53:50" (2/3) ... [2021-12-17 16:53:55,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f065cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:53:55, skipping insertion in model container [2021-12-17 16:53:55,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:53:55" (3/3) ... [2021-12-17 16:53:55,505 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-17 16:53:55,509 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 16:53:55,510 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-12-17 16:53:55,554 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 16:53:55,559 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 16:53:55,559 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-12-17 16:53:55,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 2064 states, 2034 states have (on average 1.867748279252704) internal successors, (3799), 2063 states have internal predecessors, (3799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:53:55,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-17 16:53:55,637 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:53:55,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:53:55,638 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:53:55,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:53:55,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1776091410, now seen corresponding path program 1 times [2021-12-17 16:53:55,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:53:55,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085169959] [2021-12-17 16:53:55,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:53:55,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:53:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:53:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:53:56,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:53:56,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085169959] [2021-12-17 16:53:56,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085169959] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:53:56,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:53:56,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:53:56,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291556660] [2021-12-17 16:53:56,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:53:56,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:53:56,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:53:56,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:53:56,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:53:56,163 INFO L87 Difference]: Start difference. First operand has 2064 states, 2034 states have (on average 1.867748279252704) internal successors, (3799), 2063 states have internal predecessors, (3799), 0 states have call successors, (0), 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 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:53:57,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:53:57,464 INFO L93 Difference]: Finished difference Result 3060 states and 5456 transitions. [2021-12-17 16:53:57,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:53:57,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-17 16:53:57,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:53:57,483 INFO L225 Difference]: With dead ends: 3060 [2021-12-17 16:53:57,483 INFO L226 Difference]: Without dead ends: 1597 [2021-12-17 16:53:57,492 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:53:57,495 INFO L933 BasicCegarLoop]: 1828 mSDtfsCounter, 8284 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8284 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:53:57,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8284 Valid, 1906 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 16:53:57,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2021-12-17 16:53:57,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1597. [2021-12-17 16:53:57,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1568 states have (on average 1.3214285714285714) internal successors, (2072), 1596 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:53:57,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2072 transitions. [2021-12-17 16:53:57,612 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2072 transitions. Word has length 100 [2021-12-17 16:53:57,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:53:57,612 INFO L470 AbstractCegarLoop]: Abstraction has 1597 states and 2072 transitions. [2021-12-17 16:53:57,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:53:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2072 transitions. [2021-12-17 16:53:57,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-17 16:53:57,626 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:53:57,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:53:57,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 16:53:57,627 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:53:57,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:53:57,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1206064956, now seen corresponding path program 1 times [2021-12-17 16:53:57,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:53:57,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634623136] [2021-12-17 16:53:57,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:53:57,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:53:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:53:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:53:57,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:53:57,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634623136] [2021-12-17 16:53:57,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634623136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:53:57,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:53:57,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:53:57,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47204807] [2021-12-17 16:53:57,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:53:57,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:53:57,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:53:57,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:53:57,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:53:57,763 INFO L87 Difference]: Start difference. First operand 1597 states and 2072 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:53:58,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:53:58,617 INFO L93 Difference]: Finished difference Result 2584 states and 3471 transitions. [2021-12-17 16:53:58,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:53:58,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-17 16:53:58,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:53:58,623 INFO L225 Difference]: With dead ends: 2584 [2021-12-17 16:53:58,623 INFO L226 Difference]: Without dead ends: 1341 [2021-12-17 16:53:58,625 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:53:58,626 INFO L933 BasicCegarLoop]: 989 mSDtfsCounter, 5230 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5230 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:53:58,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5230 Valid, 1017 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 16:53:58,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2021-12-17 16:53:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1341. [2021-12-17 16:53:58,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1312 states have (on average 1.3589939024390243) internal successors, (1783), 1340 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:53:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1783 transitions. [2021-12-17 16:53:58,670 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1783 transitions. Word has length 101 [2021-12-17 16:53:58,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:53:58,672 INFO L470 AbstractCegarLoop]: Abstraction has 1341 states and 1783 transitions. [2021-12-17 16:53:58,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:53:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1783 transitions. [2021-12-17 16:53:58,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-17 16:53:58,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:53:58,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:53:58,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 16:53:58,678 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:53:58,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:53:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2122960339, now seen corresponding path program 1 times [2021-12-17 16:53:58,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:53:58,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981232045] [2021-12-17 16:53:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:53:58,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:53:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:53:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:53:58,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:53:58,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981232045] [2021-12-17 16:53:58,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981232045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:53:58,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:53:58,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:53:58,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526050977] [2021-12-17 16:53:58,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:53:58,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:53:58,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:53:58,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:53:58,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:53:58,849 INFO L87 Difference]: Start difference. First operand 1341 states and 1783 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:53:59,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:53:59,909 INFO L93 Difference]: Finished difference Result 2907 states and 3984 transitions. [2021-12-17 16:53:59,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:53:59,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-17 16:53:59,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:53:59,917 INFO L225 Difference]: With dead ends: 2907 [2021-12-17 16:53:59,917 INFO L226 Difference]: Without dead ends: 1771 [2021-12-17 16:53:59,919 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:53:59,929 INFO L933 BasicCegarLoop]: 907 mSDtfsCounter, 6383 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6383 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 16:53:59,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6383 Valid, 1355 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 16:53:59,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2021-12-17 16:53:59,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1669. [2021-12-17 16:53:59,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1640 states have (on average 1.425) internal successors, (2337), 1668 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:53:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2337 transitions. [2021-12-17 16:53:59,996 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2337 transitions. Word has length 102 [2021-12-17 16:53:59,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:53:59,998 INFO L470 AbstractCegarLoop]: Abstraction has 1669 states and 2337 transitions. [2021-12-17 16:53:59,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:53:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2337 transitions. [2021-12-17 16:54:00,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-17 16:54:00,001 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:00,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:00,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 16:54:00,003 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:00,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:00,004 INFO L85 PathProgramCache]: Analyzing trace with hash -151518128, now seen corresponding path program 1 times [2021-12-17 16:54:00,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:00,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364830001] [2021-12-17 16:54:00,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:00,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:00,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:00,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364830001] [2021-12-17 16:54:00,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364830001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:00,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:00,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:54:00,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099816436] [2021-12-17 16:54:00,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:00,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:54:00,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:00,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:54:00,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:54:00,168 INFO L87 Difference]: Start difference. First operand 1669 states and 2337 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:00,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:00,963 INFO L93 Difference]: Finished difference Result 3133 states and 4454 transitions. [2021-12-17 16:54:00,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:54:00,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-12-17 16:54:00,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:00,970 INFO L225 Difference]: With dead ends: 3133 [2021-12-17 16:54:00,970 INFO L226 Difference]: Without dead ends: 1617 [2021-12-17 16:54:00,972 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:54:00,973 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 4457 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4457 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:00,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4457 Valid, 813 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 16:54:00,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2021-12-17 16:54:01,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2021-12-17 16:54:01,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.4326196473551638) internal successors, (2275), 1616 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:01,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2275 transitions. [2021-12-17 16:54:01,026 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2275 transitions. Word has length 103 [2021-12-17 16:54:01,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:01,027 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2275 transitions. [2021-12-17 16:54:01,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:01,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2275 transitions. [2021-12-17 16:54:01,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-17 16:54:01,030 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:01,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:01,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 16:54:01,031 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:01,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:01,032 INFO L85 PathProgramCache]: Analyzing trace with hash -935643307, now seen corresponding path program 1 times [2021-12-17 16:54:01,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:01,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910573067] [2021-12-17 16:54:01,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:01,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:01,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:01,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910573067] [2021-12-17 16:54:01,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910573067] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:01,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:01,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:54:01,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504655841] [2021-12-17 16:54:01,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:01,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:54:01,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:01,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:54:01,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:54:01,114 INFO L87 Difference]: Start difference. First operand 1617 states and 2275 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:02,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:02,040 INFO L93 Difference]: Finished difference Result 3081 states and 4390 transitions. [2021-12-17 16:54:02,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:54:02,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2021-12-17 16:54:02,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:02,046 INFO L225 Difference]: With dead ends: 3081 [2021-12-17 16:54:02,046 INFO L226 Difference]: Without dead ends: 1597 [2021-12-17 16:54:02,050 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:54:02,051 INFO L933 BasicCegarLoop]: 626 mSDtfsCounter, 4278 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4278 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:02,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4278 Valid, 678 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 16:54:02,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2021-12-17 16:54:02,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1597. [2021-12-17 16:54:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1568 states have (on average 1.434311224489796) internal successors, (2249), 1596 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:02,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2249 transitions. [2021-12-17 16:54:02,107 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2249 transitions. Word has length 104 [2021-12-17 16:54:02,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:02,109 INFO L470 AbstractCegarLoop]: Abstraction has 1597 states and 2249 transitions. [2021-12-17 16:54:02,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:02,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2249 transitions. [2021-12-17 16:54:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-17 16:54:02,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:02,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:02,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 16:54:02,113 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:02,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:02,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1565610801, now seen corresponding path program 1 times [2021-12-17 16:54:02,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:02,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232284382] [2021-12-17 16:54:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:02,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:02,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:02,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232284382] [2021-12-17 16:54:02,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232284382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:02,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:02,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:54:02,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807169221] [2021-12-17 16:54:02,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:02,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:54:02,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:02,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:54:02,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:54:02,191 INFO L87 Difference]: Start difference. First operand 1597 states and 2249 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:02,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:02,844 INFO L93 Difference]: Finished difference Result 3061 states and 4362 transitions. [2021-12-17 16:54:02,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:54:02,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-12-17 16:54:02,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:02,851 INFO L225 Difference]: With dead ends: 3061 [2021-12-17 16:54:02,851 INFO L226 Difference]: Without dead ends: 1560 [2021-12-17 16:54:02,853 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:54:02,855 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 4394 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4394 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:02,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4394 Valid, 833 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:54:02,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2021-12-17 16:54:02,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1560. [2021-12-17 16:54:02,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1531 states have (on average 1.442194644023514) internal successors, (2208), 1559 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2208 transitions. [2021-12-17 16:54:02,932 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2208 transitions. Word has length 105 [2021-12-17 16:54:02,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:02,933 INFO L470 AbstractCegarLoop]: Abstraction has 1560 states and 2208 transitions. [2021-12-17 16:54:02,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:02,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2208 transitions. [2021-12-17 16:54:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-17 16:54:02,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:02,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:02,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 16:54:02,937 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:02,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:02,937 INFO L85 PathProgramCache]: Analyzing trace with hash -60330059, now seen corresponding path program 1 times [2021-12-17 16:54:02,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:02,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457696441] [2021-12-17 16:54:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:02,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:03,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:03,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:03,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457696441] [2021-12-17 16:54:03,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457696441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:03,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:03,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:54:03,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140402536] [2021-12-17 16:54:03,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:03,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:54:03,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:03,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:54:03,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:54:03,032 INFO L87 Difference]: Start difference. First operand 1560 states and 2208 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:03,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:03,640 INFO L93 Difference]: Finished difference Result 3024 states and 4319 transitions. [2021-12-17 16:54:03,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:54:03,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2021-12-17 16:54:03,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:03,647 INFO L225 Difference]: With dead ends: 3024 [2021-12-17 16:54:03,647 INFO L226 Difference]: Without dead ends: 1543 [2021-12-17 16:54:03,649 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:54:03,650 INFO L933 BasicCegarLoop]: 806 mSDtfsCounter, 4320 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4320 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:03,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4320 Valid, 826 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:54:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2021-12-17 16:54:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1543. [2021-12-17 16:54:03,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4451783355350065) internal successors, (2188), 1542 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:03,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2188 transitions. [2021-12-17 16:54:03,722 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2188 transitions. Word has length 106 [2021-12-17 16:54:03,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:03,722 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2188 transitions. [2021-12-17 16:54:03,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:03,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2188 transitions. [2021-12-17 16:54:03,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 16:54:03,726 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:03,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:03,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 16:54:03,726 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:03,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:03,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1619061170, now seen corresponding path program 1 times [2021-12-17 16:54:03,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:03,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558731001] [2021-12-17 16:54:03,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:03,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:03,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:03,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558731001] [2021-12-17 16:54:03,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558731001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:03,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:03,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:54:03,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844314970] [2021-12-17 16:54:03,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:03,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:54:03,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:03,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:54:03,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:54:03,964 INFO L87 Difference]: Start difference. First operand 1543 states and 2188 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:06,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:06,375 INFO L93 Difference]: Finished difference Result 2887 states and 4053 transitions. [2021-12-17 16:54:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-17 16:54:06,376 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 16:54:06,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:06,386 INFO L225 Difference]: With dead ends: 2887 [2021-12-17 16:54:06,386 INFO L226 Difference]: Without dead ends: 2716 [2021-12-17 16:54:06,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-17 16:54:06,388 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 6265 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 4129 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6265 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 4406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 4129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:06,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6265 Valid, 4224 Invalid, 4406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 4129 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 16:54:06,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2021-12-17 16:54:06,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1568. [2021-12-17 16:54:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4457439896036388) internal successors, (2225), 1567 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:06,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2225 transitions. [2021-12-17 16:54:06,466 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2225 transitions. Word has length 107 [2021-12-17 16:54:06,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:06,467 INFO L470 AbstractCegarLoop]: Abstraction has 1568 states and 2225 transitions. [2021-12-17 16:54:06,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:06,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2225 transitions. [2021-12-17 16:54:06,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 16:54:06,470 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:06,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:06,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 16:54:06,470 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:06,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:06,471 INFO L85 PathProgramCache]: Analyzing trace with hash 321171132, now seen corresponding path program 1 times [2021-12-17 16:54:06,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:06,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404526015] [2021-12-17 16:54:06,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:06,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:06,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:06,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404526015] [2021-12-17 16:54:06,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404526015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:06,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:06,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:54:06,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425327309] [2021-12-17 16:54:06,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:06,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:54:06,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:06,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:54:06,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:54:06,685 INFO L87 Difference]: Start difference. First operand 1568 states and 2225 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:08,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:08,801 INFO L93 Difference]: Finished difference Result 3311 states and 4718 transitions. [2021-12-17 16:54:08,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 16:54:08,802 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 16:54:08,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:08,812 INFO L225 Difference]: With dead ends: 3311 [2021-12-17 16:54:08,813 INFO L226 Difference]: Without dead ends: 3027 [2021-12-17 16:54:08,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2021-12-17 16:54:08,815 INFO L933 BasicCegarLoop]: 838 mSDtfsCounter, 5225 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 4247 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5225 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 4283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:08,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5225 Valid, 5175 Invalid, 4283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4247 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 16:54:08,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2021-12-17 16:54:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 1568. [2021-12-17 16:54:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4450942170240415) internal successors, (2224), 1567 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:08,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2224 transitions. [2021-12-17 16:54:08,905 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2224 transitions. Word has length 107 [2021-12-17 16:54:08,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:08,905 INFO L470 AbstractCegarLoop]: Abstraction has 1568 states and 2224 transitions. [2021-12-17 16:54:08,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:08,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2224 transitions. [2021-12-17 16:54:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 16:54:08,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:08,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:08,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 16:54:08,909 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:08,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:08,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1269156506, now seen corresponding path program 1 times [2021-12-17 16:54:08,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:08,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229682959] [2021-12-17 16:54:08,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:08,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:09,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:09,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229682959] [2021-12-17 16:54:09,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229682959] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:09,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:09,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:54:09,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265087076] [2021-12-17 16:54:09,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:09,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:54:09,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:09,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:54:09,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:54:09,125 INFO L87 Difference]: Start difference. First operand 1568 states and 2224 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:11,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:11,284 INFO L93 Difference]: Finished difference Result 2995 states and 4263 transitions. [2021-12-17 16:54:11,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-17 16:54:11,285 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 16:54:11,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:11,295 INFO L225 Difference]: With dead ends: 2995 [2021-12-17 16:54:11,295 INFO L226 Difference]: Without dead ends: 2804 [2021-12-17 16:54:11,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-17 16:54:11,297 INFO L933 BasicCegarLoop]: 862 mSDtfsCounter, 8131 mSDsluCounter, 4521 mSDsCounter, 0 mSdLazyCounter, 4701 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8131 SdHoareTripleChecker+Valid, 5383 SdHoareTripleChecker+Invalid, 4819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 4701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:11,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8131 Valid, 5383 Invalid, 4819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 4701 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 16:54:11,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2021-12-17 16:54:11,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 1576. [2021-12-17 16:54:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4447317388493859) internal successors, (2235), 1575 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2235 transitions. [2021-12-17 16:54:11,398 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2235 transitions. Word has length 107 [2021-12-17 16:54:11,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:11,398 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2235 transitions. [2021-12-17 16:54:11,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:11,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2235 transitions. [2021-12-17 16:54:11,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 16:54:11,402 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:11,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:11,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 16:54:11,402 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:11,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:11,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1690715753, now seen corresponding path program 1 times [2021-12-17 16:54:11,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:11,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201942669] [2021-12-17 16:54:11,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:11,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:11,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:11,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201942669] [2021-12-17 16:54:11,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201942669] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:11,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:11,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:11,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821809321] [2021-12-17 16:54:11,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:11,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:11,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:11,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:11,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:11,546 INFO L87 Difference]: Start difference. First operand 1576 states and 2235 transitions. Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:13,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:13,161 INFO L93 Difference]: Finished difference Result 3048 states and 4370 transitions. [2021-12-17 16:54:13,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:13,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 16:54:13,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:13,170 INFO L225 Difference]: With dead ends: 3048 [2021-12-17 16:54:13,170 INFO L226 Difference]: Without dead ends: 2787 [2021-12-17 16:54:13,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:13,172 INFO L933 BasicCegarLoop]: 865 mSDtfsCounter, 4347 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 3052 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4347 SdHoareTripleChecker+Valid, 3694 SdHoareTripleChecker+Invalid, 3077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:13,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4347 Valid, 3694 Invalid, 3077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3052 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:54:13,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2021-12-17 16:54:13,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 1576. [2021-12-17 16:54:13,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4440853264382676) internal successors, (2234), 1575 states have internal predecessors, (2234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2234 transitions. [2021-12-17 16:54:13,272 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2234 transitions. Word has length 107 [2021-12-17 16:54:13,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:13,273 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2234 transitions. [2021-12-17 16:54:13,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2234 transitions. [2021-12-17 16:54:13,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 16:54:13,276 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:13,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:13,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 16:54:13,277 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:13,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:13,277 INFO L85 PathProgramCache]: Analyzing trace with hash 64636340, now seen corresponding path program 1 times [2021-12-17 16:54:13,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:13,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392920466] [2021-12-17 16:54:13,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:13,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:13,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:13,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392920466] [2021-12-17 16:54:13,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392920466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:13,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:13,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 16:54:13,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292985544] [2021-12-17 16:54:13,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:13,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 16:54:13,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:13,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 16:54:13,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-17 16:54:13,435 INFO L87 Difference]: Start difference. First operand 1576 states and 2234 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:15,233 INFO L93 Difference]: Finished difference Result 2937 states and 4192 transitions. [2021-12-17 16:54:15,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 16:54:15,233 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 16:54:15,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:15,242 INFO L225 Difference]: With dead ends: 2937 [2021-12-17 16:54:15,246 INFO L226 Difference]: Without dead ends: 2727 [2021-12-17 16:54:15,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-17 16:54:15,252 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 8804 mSDsluCounter, 3653 mSDsCounter, 0 mSdLazyCounter, 3759 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8804 SdHoareTripleChecker+Valid, 4522 SdHoareTripleChecker+Invalid, 3916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:15,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8804 Valid, 4522 Invalid, 3916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3759 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:54:15,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2021-12-17 16:54:15,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 1576. [2021-12-17 16:54:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.442792501616031) internal successors, (2232), 1575 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2232 transitions. [2021-12-17 16:54:15,349 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2232 transitions. Word has length 107 [2021-12-17 16:54:15,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:15,350 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2232 transitions. [2021-12-17 16:54:15,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2232 transitions. [2021-12-17 16:54:15,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 16:54:15,353 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:15,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:15,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 16:54:15,354 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:15,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:15,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1233253698, now seen corresponding path program 1 times [2021-12-17 16:54:15,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:15,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030415349] [2021-12-17 16:54:15,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:15,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:15,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:15,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:15,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030415349] [2021-12-17 16:54:15,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030415349] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:15,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:15,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 16:54:15,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773726866] [2021-12-17 16:54:15,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:15,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 16:54:15,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:15,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 16:54:15,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-17 16:54:15,527 INFO L87 Difference]: Start difference. First operand 1576 states and 2232 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:17,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:17,282 INFO L93 Difference]: Finished difference Result 3145 states and 4500 transitions. [2021-12-17 16:54:17,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 16:54:17,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 16:54:17,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:17,293 INFO L225 Difference]: With dead ends: 3145 [2021-12-17 16:54:17,293 INFO L226 Difference]: Without dead ends: 2779 [2021-12-17 16:54:17,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-17 16:54:17,296 INFO L933 BasicCegarLoop]: 885 mSDtfsCounter, 4415 mSDsluCounter, 3676 mSDsCounter, 0 mSdLazyCounter, 3735 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4415 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 3762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:17,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4415 Valid, 4561 Invalid, 3762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3735 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:54:17,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2021-12-17 16:54:17,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 1576. [2021-12-17 16:54:17,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4414996767937944) internal successors, (2230), 1575 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:17,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2230 transitions. [2021-12-17 16:54:17,424 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2230 transitions. Word has length 107 [2021-12-17 16:54:17,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:17,424 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2230 transitions. [2021-12-17 16:54:17,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:17,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2230 transitions. [2021-12-17 16:54:17,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 16:54:17,428 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:17,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:17,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 16:54:17,428 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:17,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1471385960, now seen corresponding path program 1 times [2021-12-17 16:54:17,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:17,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144232369] [2021-12-17 16:54:17,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:17,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:17,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:17,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144232369] [2021-12-17 16:54:17,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144232369] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:17,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:17,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 16:54:17,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638324494] [2021-12-17 16:54:17,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:17,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 16:54:17,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:17,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 16:54:17,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-17 16:54:17,613 INFO L87 Difference]: Start difference. First operand 1576 states and 2230 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:19,530 INFO L93 Difference]: Finished difference Result 2937 states and 4188 transitions. [2021-12-17 16:54:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 16:54:19,530 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 16:54:19,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:19,535 INFO L225 Difference]: With dead ends: 2937 [2021-12-17 16:54:19,535 INFO L226 Difference]: Without dead ends: 2727 [2021-12-17 16:54:19,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-17 16:54:19,537 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 6350 mSDsluCounter, 4425 mSDsCounter, 0 mSdLazyCounter, 4380 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6350 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 4482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 4380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:19,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6350 Valid, 5294 Invalid, 4482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 4380 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:54:19,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2021-12-17 16:54:19,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 1576. [2021-12-17 16:54:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4402068519715578) internal successors, (2228), 1575 states have internal predecessors, (2228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:19,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2228 transitions. [2021-12-17 16:54:19,632 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2228 transitions. Word has length 107 [2021-12-17 16:54:19,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:19,632 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2228 transitions. [2021-12-17 16:54:19,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2228 transitions. [2021-12-17 16:54:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 16:54:19,635 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:19,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:19,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 16:54:19,636 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:19,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:19,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1678647856, now seen corresponding path program 1 times [2021-12-17 16:54:19,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:19,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581411664] [2021-12-17 16:54:19,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:19,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:19,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:19,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581411664] [2021-12-17 16:54:19,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581411664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:19,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:19,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 16:54:19,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069264310] [2021-12-17 16:54:19,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:19,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 16:54:19,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:19,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 16:54:19,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-17 16:54:19,784 INFO L87 Difference]: Start difference. First operand 1576 states and 2228 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:21,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:21,556 INFO L93 Difference]: Finished difference Result 2941 states and 4190 transitions. [2021-12-17 16:54:21,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 16:54:21,557 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 16:54:21,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:21,561 INFO L225 Difference]: With dead ends: 2941 [2021-12-17 16:54:21,561 INFO L226 Difference]: Without dead ends: 2727 [2021-12-17 16:54:21,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-17 16:54:21,562 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 6459 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 3747 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6459 SdHoareTripleChecker+Valid, 4519 SdHoareTripleChecker+Invalid, 3859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 3747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:21,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6459 Valid, 4519 Invalid, 3859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 3747 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:54:21,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2021-12-17 16:54:21,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 1576. [2021-12-17 16:54:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4389140271493213) internal successors, (2226), 1575 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:21,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2226 transitions. [2021-12-17 16:54:21,632 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2226 transitions. Word has length 107 [2021-12-17 16:54:21,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:21,632 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2226 transitions. [2021-12-17 16:54:21,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:21,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2226 transitions. [2021-12-17 16:54:21,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 16:54:21,635 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:21,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:21,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 16:54:21,635 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:21,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1318429402, now seen corresponding path program 1 times [2021-12-17 16:54:21,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:21,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453700867] [2021-12-17 16:54:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:21,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:21,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:21,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:21,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453700867] [2021-12-17 16:54:21,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453700867] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:21,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:21,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:54:21,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747257247] [2021-12-17 16:54:21,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:21,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 16:54:21,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:21,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 16:54:21,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-17 16:54:21,746 INFO L87 Difference]: Start difference. First operand 1576 states and 2226 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:22,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:22,963 INFO L93 Difference]: Finished difference Result 2695 states and 3682 transitions. [2021-12-17 16:54:22,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 16:54:22,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 16:54:22,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:22,968 INFO L225 Difference]: With dead ends: 2695 [2021-12-17 16:54:22,969 INFO L226 Difference]: Without dead ends: 2035 [2021-12-17 16:54:22,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-12-17 16:54:22,971 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 7983 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7983 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:22,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7983 Valid, 1602 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 16:54:22,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2021-12-17 16:54:23,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 1576. [2021-12-17 16:54:23,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.438267614738203) internal successors, (2225), 1575 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:23,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2225 transitions. [2021-12-17 16:54:23,060 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2225 transitions. Word has length 107 [2021-12-17 16:54:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:23,060 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2225 transitions. [2021-12-17 16:54:23,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2225 transitions. [2021-12-17 16:54:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 16:54:23,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:23,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:23,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 16:54:23,063 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:23,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:23,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1556092728, now seen corresponding path program 1 times [2021-12-17 16:54:23,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:23,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313104980] [2021-12-17 16:54:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:23,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:23,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:23,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:23,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313104980] [2021-12-17 16:54:23,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313104980] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:23,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:23,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:23,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966686217] [2021-12-17 16:54:23,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:23,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:23,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:23,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:23,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:23,188 INFO L87 Difference]: Start difference. First operand 1576 states and 2225 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:24,523 INFO L93 Difference]: Finished difference Result 2184 states and 3117 transitions. [2021-12-17 16:54:24,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:24,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2021-12-17 16:54:24,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:24,526 INFO L225 Difference]: With dead ends: 2184 [2021-12-17 16:54:24,526 INFO L226 Difference]: Without dead ends: 1800 [2021-12-17 16:54:24,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 16:54:24,531 INFO L933 BasicCegarLoop]: 811 mSDtfsCounter, 6414 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 2731 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6414 SdHoareTripleChecker+Valid, 3349 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:24,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6414 Valid, 3349 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2731 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 16:54:24,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-12-17 16:54:24,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1543. [2021-12-17 16:54:24,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4379128137384412) internal successors, (2177), 1542 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2177 transitions. [2021-12-17 16:54:24,609 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2177 transitions. Word has length 109 [2021-12-17 16:54:24,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:24,609 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2177 transitions. [2021-12-17 16:54:24,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:24,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2177 transitions. [2021-12-17 16:54:24,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 16:54:24,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:24,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:24,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 16:54:24,612 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:24,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:24,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1267119622, now seen corresponding path program 1 times [2021-12-17 16:54:24,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:24,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725057184] [2021-12-17 16:54:24,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:24,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:24,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:24,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725057184] [2021-12-17 16:54:24,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725057184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:24,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:24,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:24,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656635324] [2021-12-17 16:54:24,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:24,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:24,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:24,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:24,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:24,732 INFO L87 Difference]: Start difference. First operand 1543 states and 2177 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:26,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:26,342 INFO L93 Difference]: Finished difference Result 2889 states and 4109 transitions. [2021-12-17 16:54:26,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:26,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2021-12-17 16:54:26,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:26,346 INFO L225 Difference]: With dead ends: 2889 [2021-12-17 16:54:26,346 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:54:26,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:26,348 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 4147 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 3116 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 3183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:26,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4147 Valid, 3744 Invalid, 3183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3116 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:54:26,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:54:26,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:54:26,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4372523117569354) internal successors, (2176), 1542 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:26,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2176 transitions. [2021-12-17 16:54:26,458 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2176 transitions. Word has length 109 [2021-12-17 16:54:26,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:26,458 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2176 transitions. [2021-12-17 16:54:26,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:26,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2176 transitions. [2021-12-17 16:54:26,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 16:54:26,460 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:26,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:26,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 16:54:26,461 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:26,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:26,462 INFO L85 PathProgramCache]: Analyzing trace with hash -604463307, now seen corresponding path program 1 times [2021-12-17 16:54:26,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:26,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992535633] [2021-12-17 16:54:26,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:26,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:26,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:26,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992535633] [2021-12-17 16:54:26,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992535633] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:26,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:26,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:26,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61759855] [2021-12-17 16:54:26,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:26,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:26,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:26,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:26,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:26,579 INFO L87 Difference]: Start difference. First operand 1543 states and 2176 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:28,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:28,207 INFO L93 Difference]: Finished difference Result 2883 states and 4102 transitions. [2021-12-17 16:54:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:28,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2021-12-17 16:54:28,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:28,213 INFO L225 Difference]: With dead ends: 2883 [2021-12-17 16:54:28,213 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:54:28,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:28,214 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 4142 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 3114 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4142 SdHoareTripleChecker+Valid, 3735 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:28,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4142 Valid, 3735 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3114 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:54:28,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:54:28,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:54:28,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4365918097754293) internal successors, (2175), 1542 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2175 transitions. [2021-12-17 16:54:28,336 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2175 transitions. Word has length 109 [2021-12-17 16:54:28,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:28,336 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2175 transitions. [2021-12-17 16:54:28,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:28,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2175 transitions. [2021-12-17 16:54:28,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 16:54:28,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:28,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:28,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 16:54:28,339 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:28,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:28,340 INFO L85 PathProgramCache]: Analyzing trace with hash 70295, now seen corresponding path program 1 times [2021-12-17 16:54:28,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:28,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164386094] [2021-12-17 16:54:28,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:28,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:28,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:28,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:28,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164386094] [2021-12-17 16:54:28,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164386094] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:28,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:28,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:28,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535964158] [2021-12-17 16:54:28,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:28,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:28,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:28,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:28,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:28,492 INFO L87 Difference]: Start difference. First operand 1543 states and 2175 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:30,130 INFO L93 Difference]: Finished difference Result 2889 states and 4106 transitions. [2021-12-17 16:54:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2021-12-17 16:54:30,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:30,136 INFO L225 Difference]: With dead ends: 2889 [2021-12-17 16:54:30,136 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:54:30,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:30,137 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 4078 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 3173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:30,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4078 Valid, 3744 Invalid, 3173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3106 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:54:30,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:54:30,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:54:30,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4359313077939233) internal successors, (2174), 1542 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:30,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2174 transitions. [2021-12-17 16:54:30,277 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2174 transitions. Word has length 109 [2021-12-17 16:54:30,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:30,277 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2174 transitions. [2021-12-17 16:54:30,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:30,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2174 transitions. [2021-12-17 16:54:30,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 16:54:30,280 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:30,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:30,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 16:54:30,280 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:30,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:30,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1297819743, now seen corresponding path program 1 times [2021-12-17 16:54:30,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:30,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154589583] [2021-12-17 16:54:30,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:30,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:30,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:30,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:30,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154589583] [2021-12-17 16:54:30,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154589583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:30,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:30,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:30,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023979232] [2021-12-17 16:54:30,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:30,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:30,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:30,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:30,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:30,405 INFO L87 Difference]: Start difference. First operand 1543 states and 2174 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:32,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:32,058 INFO L93 Difference]: Finished difference Result 3038 states and 4328 transitions. [2021-12-17 16:54:32,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:32,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2021-12-17 16:54:32,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:32,062 INFO L225 Difference]: With dead ends: 3038 [2021-12-17 16:54:32,062 INFO L226 Difference]: Without dead ends: 2754 [2021-12-17 16:54:32,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:32,065 INFO L933 BasicCegarLoop]: 1119 mSDtfsCounter, 6063 mSDsluCounter, 3226 mSDsCounter, 0 mSdLazyCounter, 3548 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6063 SdHoareTripleChecker+Valid, 4345 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 3548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:32,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6063 Valid, 4345 Invalid, 3581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 3548 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:54:32,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-12-17 16:54:32,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1543. [2021-12-17 16:54:32,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4352708058124175) internal successors, (2173), 1542 states have internal predecessors, (2173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2173 transitions. [2021-12-17 16:54:32,193 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2173 transitions. Word has length 109 [2021-12-17 16:54:32,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:32,193 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2173 transitions. [2021-12-17 16:54:32,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:32,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2173 transitions. [2021-12-17 16:54:32,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 16:54:32,195 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:32,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:32,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 16:54:32,196 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:32,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:32,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1406819915, now seen corresponding path program 1 times [2021-12-17 16:54:32,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:32,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042559567] [2021-12-17 16:54:32,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:32,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:32,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:32,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:32,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042559567] [2021-12-17 16:54:32,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042559567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:32,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:32,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:32,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608685581] [2021-12-17 16:54:32,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:32,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:32,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:32,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:32,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:32,315 INFO L87 Difference]: Start difference. First operand 1543 states and 2173 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:33,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:33,959 INFO L93 Difference]: Finished difference Result 2732 states and 3836 transitions. [2021-12-17 16:54:33,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:33,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2021-12-17 16:54:33,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:33,962 INFO L225 Difference]: With dead ends: 2732 [2021-12-17 16:54:33,962 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:54:33,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:33,964 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 5968 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 3052 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5968 SdHoareTripleChecker+Valid, 3376 SdHoareTripleChecker+Invalid, 3419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 3052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:33,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5968 Valid, 3376 Invalid, 3419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 3052 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:54:33,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:54:34,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:54:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4346103038309115) internal successors, (2172), 1542 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2172 transitions. [2021-12-17 16:54:34,084 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2172 transitions. Word has length 109 [2021-12-17 16:54:34,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:34,084 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2172 transitions. [2021-12-17 16:54:34,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:34,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2172 transitions. [2021-12-17 16:54:34,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 16:54:34,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:34,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:34,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-17 16:54:34,088 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:34,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:34,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1357447050, now seen corresponding path program 1 times [2021-12-17 16:54:34,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:34,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112168819] [2021-12-17 16:54:34,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:34,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:34,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:34,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112168819] [2021-12-17 16:54:34,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112168819] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:34,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:34,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 16:54:34,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915736584] [2021-12-17 16:54:34,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:34,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 16:54:34,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:34,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 16:54:34,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-17 16:54:34,303 INFO L87 Difference]: Start difference. First operand 1543 states and 2172 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:36,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:36,202 INFO L93 Difference]: Finished difference Result 2735 states and 3897 transitions. [2021-12-17 16:54:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 16:54:36,202 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2021-12-17 16:54:36,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:36,205 INFO L225 Difference]: With dead ends: 2735 [2021-12-17 16:54:36,205 INFO L226 Difference]: Without dead ends: 2085 [2021-12-17 16:54:36,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2021-12-17 16:54:36,206 INFO L933 BasicCegarLoop]: 969 mSDtfsCounter, 7108 mSDsluCounter, 3626 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7108 SdHoareTripleChecker+Valid, 4595 SdHoareTripleChecker+Invalid, 3839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:36,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7108 Valid, 4595 Invalid, 3839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3787 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:54:36,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2021-12-17 16:54:36,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1543. [2021-12-17 16:54:36,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4332892998678997) internal successors, (2170), 1542 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:36,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2170 transitions. [2021-12-17 16:54:36,323 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2170 transitions. Word has length 109 [2021-12-17 16:54:36,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:36,323 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2170 transitions. [2021-12-17 16:54:36,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:36,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2170 transitions. [2021-12-17 16:54:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:36,326 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:36,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:36,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 16:54:36,326 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:36,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1756608252, now seen corresponding path program 1 times [2021-12-17 16:54:36,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:36,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592066151] [2021-12-17 16:54:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:36,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:36,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:36,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:36,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592066151] [2021-12-17 16:54:36,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592066151] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:36,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:36,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:36,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330100247] [2021-12-17 16:54:36,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:36,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:36,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:36,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:36,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:36,436 INFO L87 Difference]: Start difference. First operand 1543 states and 2170 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:38,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:38,086 INFO L93 Difference]: Finished difference Result 2883 states and 4094 transitions. [2021-12-17 16:54:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:38,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:38,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:38,089 INFO L225 Difference]: With dead ends: 2883 [2021-12-17 16:54:38,089 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:54:38,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:38,091 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 4058 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 3093 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 3750 SdHoareTripleChecker+Invalid, 3160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:38,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4058 Valid, 3750 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3093 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:54:38,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:54:38,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:54:38,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4326287978863936) internal successors, (2169), 1542 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:38,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2169 transitions. [2021-12-17 16:54:38,210 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2169 transitions. Word has length 111 [2021-12-17 16:54:38,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:38,210 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2169 transitions. [2021-12-17 16:54:38,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:38,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2169 transitions. [2021-12-17 16:54:38,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:38,212 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:38,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:38,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-17 16:54:38,213 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:38,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:38,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1269345986, now seen corresponding path program 1 times [2021-12-17 16:54:38,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:38,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719725182] [2021-12-17 16:54:38,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:38,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:38,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:38,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:38,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719725182] [2021-12-17 16:54:38,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719725182] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:38,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:38,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:38,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826110892] [2021-12-17 16:54:38,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:38,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:38,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:38,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:38,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:38,323 INFO L87 Difference]: Start difference. First operand 1543 states and 2169 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:39,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:39,987 INFO L93 Difference]: Finished difference Result 2566 states and 3580 transitions. [2021-12-17 16:54:39,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:39,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:39,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:39,991 INFO L225 Difference]: With dead ends: 2566 [2021-12-17 16:54:39,991 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:54:39,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:39,992 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 5951 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 3041 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5951 SdHoareTripleChecker+Valid, 3377 SdHoareTripleChecker+Invalid, 3408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 3041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:39,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5951 Valid, 3377 Invalid, 3408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 3041 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:54:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:54:40,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:54:40,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4319682959048876) internal successors, (2168), 1542 states have internal predecessors, (2168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:40,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2168 transitions. [2021-12-17 16:54:40,104 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2168 transitions. Word has length 111 [2021-12-17 16:54:40,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:40,104 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2168 transitions. [2021-12-17 16:54:40,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:40,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2168 transitions. [2021-12-17 16:54:40,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:40,106 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:40,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:40,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-17 16:54:40,107 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:40,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:40,107 INFO L85 PathProgramCache]: Analyzing trace with hash -583390338, now seen corresponding path program 1 times [2021-12-17 16:54:40,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:40,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858664894] [2021-12-17 16:54:40,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:40,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:40,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:40,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:40,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858664894] [2021-12-17 16:54:40,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858664894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:40,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:40,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:40,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187709948] [2021-12-17 16:54:40,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:40,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:40,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:40,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:40,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:40,225 INFO L87 Difference]: Start difference. First operand 1543 states and 2168 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:42,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:42,278 INFO L93 Difference]: Finished difference Result 2937 states and 4172 transitions. [2021-12-17 16:54:42,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:42,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:42,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:42,281 INFO L225 Difference]: With dead ends: 2937 [2021-12-17 16:54:42,282 INFO L226 Difference]: Without dead ends: 2722 [2021-12-17 16:54:42,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:42,283 INFO L933 BasicCegarLoop]: 1196 mSDtfsCounter, 5037 mSDsluCounter, 4184 mSDsCounter, 0 mSdLazyCounter, 4378 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5037 SdHoareTripleChecker+Valid, 5380 SdHoareTripleChecker+Invalid, 4423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 4378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:42,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5037 Valid, 5380 Invalid, 4423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 4378 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:54:42,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-17 16:54:42,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-17 16:54:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4313077939233818) internal successors, (2167), 1542 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:42,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2167 transitions. [2021-12-17 16:54:42,402 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2167 transitions. Word has length 111 [2021-12-17 16:54:42,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:42,402 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2167 transitions. [2021-12-17 16:54:42,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:42,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2167 transitions. [2021-12-17 16:54:42,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:42,403 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:42,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:42,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-17 16:54:42,404 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:42,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:42,404 INFO L85 PathProgramCache]: Analyzing trace with hash 818178437, now seen corresponding path program 1 times [2021-12-17 16:54:42,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:42,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134155163] [2021-12-17 16:54:42,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:42,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:42,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:42,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:42,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134155163] [2021-12-17 16:54:42,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134155163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:42,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:42,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:42,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485803190] [2021-12-17 16:54:42,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:42,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:42,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:42,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:42,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:42,511 INFO L87 Difference]: Start difference. First operand 1543 states and 2167 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:44,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:44,157 INFO L93 Difference]: Finished difference Result 2881 states and 4088 transitions. [2021-12-17 16:54:44,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:44,158 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:44,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:44,161 INFO L225 Difference]: With dead ends: 2881 [2021-12-17 16:54:44,161 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:54:44,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:44,162 INFO L933 BasicCegarLoop]: 896 mSDtfsCounter, 4004 mSDsluCounter, 2974 mSDsCounter, 0 mSdLazyCounter, 3190 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4004 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 3256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:44,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4004 Valid, 3870 Invalid, 3256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3190 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:54:44,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:54:44,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:54:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4306472919418758) internal successors, (2166), 1542 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:44,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2166 transitions. [2021-12-17 16:54:44,283 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2166 transitions. Word has length 111 [2021-12-17 16:54:44,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:44,284 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2166 transitions. [2021-12-17 16:54:44,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:44,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2166 transitions. [2021-12-17 16:54:44,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:44,286 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:44,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:44,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-17 16:54:44,287 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:44,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:44,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1603616076, now seen corresponding path program 1 times [2021-12-17 16:54:44,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:44,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273086665] [2021-12-17 16:54:44,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:44,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:44,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:44,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:44,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273086665] [2021-12-17 16:54:44,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273086665] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:44,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:44,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:44,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525052264] [2021-12-17 16:54:44,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:44,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:44,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:44,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:44,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:44,410 INFO L87 Difference]: Start difference. First operand 1543 states and 2166 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:46,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:46,756 INFO L93 Difference]: Finished difference Result 2929 states and 4163 transitions. [2021-12-17 16:54:46,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:46,756 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:46,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:46,759 INFO L225 Difference]: With dead ends: 2929 [2021-12-17 16:54:46,759 INFO L226 Difference]: Without dead ends: 2722 [2021-12-17 16:54:46,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:46,760 INFO L933 BasicCegarLoop]: 1167 mSDtfsCounter, 5028 mSDsluCounter, 4819 mSDsCounter, 0 mSdLazyCounter, 4827 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5028 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 4871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:46,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5028 Valid, 5986 Invalid, 4871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 4827 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 16:54:46,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-17 16:54:46,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-17 16:54:46,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.42998678996037) internal successors, (2165), 1542 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:46,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2165 transitions. [2021-12-17 16:54:46,866 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2165 transitions. Word has length 111 [2021-12-17 16:54:46,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:46,867 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2165 transitions. [2021-12-17 16:54:46,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:46,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2165 transitions. [2021-12-17 16:54:46,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:46,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:46,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:46,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-17 16:54:46,869 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:46,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:46,869 INFO L85 PathProgramCache]: Analyzing trace with hash 484023005, now seen corresponding path program 1 times [2021-12-17 16:54:46,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:46,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662747412] [2021-12-17 16:54:46,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:46,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:46,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:46,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:46,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662747412] [2021-12-17 16:54:46,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662747412] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:46,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:46,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:46,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389083720] [2021-12-17 16:54:46,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:46,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:46,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:46,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:46,995 INFO L87 Difference]: Start difference. First operand 1543 states and 2165 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:48,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:48,991 INFO L93 Difference]: Finished difference Result 2952 states and 4185 transitions. [2021-12-17 16:54:48,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:48,992 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:48,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:48,995 INFO L225 Difference]: With dead ends: 2952 [2021-12-17 16:54:48,995 INFO L226 Difference]: Without dead ends: 2722 [2021-12-17 16:54:48,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:48,996 INFO L933 BasicCegarLoop]: 1208 mSDtfsCounter, 5023 mSDsluCounter, 4212 mSDsCounter, 0 mSdLazyCounter, 4352 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5023 SdHoareTripleChecker+Valid, 5420 SdHoareTripleChecker+Invalid, 4397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 4352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:48,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5023 Valid, 5420 Invalid, 4397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 4352 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:54:48,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-17 16:54:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-17 16:54:49,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.429326287978864) internal successors, (2164), 1542 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:49,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2164 transitions. [2021-12-17 16:54:49,124 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2164 transitions. Word has length 111 [2021-12-17 16:54:49,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:49,124 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2164 transitions. [2021-12-17 16:54:49,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2164 transitions. [2021-12-17 16:54:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:49,126 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:49,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:49,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-17 16:54:49,126 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash 682456682, now seen corresponding path program 1 times [2021-12-17 16:54:49,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:49,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133606768] [2021-12-17 16:54:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:49,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:49,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:49,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:49,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133606768] [2021-12-17 16:54:49,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133606768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:49,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:49,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:49,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649640764] [2021-12-17 16:54:49,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:49,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:49,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:49,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:49,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:49,245 INFO L87 Difference]: Start difference. First operand 1543 states and 2164 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:51,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:51,047 INFO L93 Difference]: Finished difference Result 2937 states and 4168 transitions. [2021-12-17 16:54:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:51,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:51,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:51,050 INFO L225 Difference]: With dead ends: 2937 [2021-12-17 16:54:51,050 INFO L226 Difference]: Without dead ends: 2722 [2021-12-17 16:54:51,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:51,051 INFO L933 BasicCegarLoop]: 1085 mSDtfsCounter, 6947 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6947 SdHoareTripleChecker+Valid, 4623 SdHoareTripleChecker+Invalid, 3747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:51,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6947 Valid, 4623 Invalid, 3747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3688 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:54:51,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-17 16:54:51,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-17 16:54:51,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.428665785997358) internal successors, (2163), 1542 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2163 transitions. [2021-12-17 16:54:51,166 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2163 transitions. Word has length 111 [2021-12-17 16:54:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:51,166 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2163 transitions. [2021-12-17 16:54:51,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:51,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2163 transitions. [2021-12-17 16:54:51,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:51,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:51,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:51,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-17 16:54:51,168 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:51,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:51,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1272512024, now seen corresponding path program 1 times [2021-12-17 16:54:51,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:51,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546463881] [2021-12-17 16:54:51,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:51,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:51,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:51,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546463881] [2021-12-17 16:54:51,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546463881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:51,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:51,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:51,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132210986] [2021-12-17 16:54:51,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:51,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:51,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:51,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:51,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:51,277 INFO L87 Difference]: Start difference. First operand 1543 states and 2163 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:53,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:53,114 INFO L93 Difference]: Finished difference Result 2883 states and 4086 transitions. [2021-12-17 16:54:53,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:53,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:53,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:53,117 INFO L225 Difference]: With dead ends: 2883 [2021-12-17 16:54:53,117 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:54:53,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:53,119 INFO L933 BasicCegarLoop]: 1023 mSDtfsCounter, 5616 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 3573 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5616 SdHoareTripleChecker+Valid, 4365 SdHoareTripleChecker+Invalid, 3668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:53,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5616 Valid, 4365 Invalid, 3668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3573 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:54:53,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:54:53,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:54:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4280052840158521) internal successors, (2162), 1542 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2162 transitions. [2021-12-17 16:54:53,229 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2162 transitions. Word has length 111 [2021-12-17 16:54:53,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:53,230 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2162 transitions. [2021-12-17 16:54:53,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:53,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2162 transitions. [2021-12-17 16:54:53,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:53,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:53,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:53,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-17 16:54:53,232 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:53,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:53,232 INFO L85 PathProgramCache]: Analyzing trace with hash -724405866, now seen corresponding path program 1 times [2021-12-17 16:54:53,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:53,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739672249] [2021-12-17 16:54:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:53,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:53,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:53,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739672249] [2021-12-17 16:54:53,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739672249] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:53,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:53,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:53,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559258544] [2021-12-17 16:54:53,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:53,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:53,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:53,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:53,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:53,347 INFO L87 Difference]: Start difference. First operand 1543 states and 2162 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:55,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:55,476 INFO L93 Difference]: Finished difference Result 2986 states and 4230 transitions. [2021-12-17 16:54:55,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:55,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:55,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:55,480 INFO L225 Difference]: With dead ends: 2986 [2021-12-17 16:54:55,480 INFO L226 Difference]: Without dead ends: 2722 [2021-12-17 16:54:55,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:55,481 INFO L933 BasicCegarLoop]: 1208 mSDtfsCounter, 4964 mSDsluCounter, 4729 mSDsCounter, 0 mSdLazyCounter, 4725 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4964 SdHoareTripleChecker+Valid, 5937 SdHoareTripleChecker+Invalid, 4769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:55,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4964 Valid, 5937 Invalid, 4769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 4725 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:54:55,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-17 16:54:55,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-17 16:54:55,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.42668428005284) internal successors, (2160), 1542 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:55,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2160 transitions. [2021-12-17 16:54:55,648 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2160 transitions. Word has length 111 [2021-12-17 16:54:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:55,648 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2160 transitions. [2021-12-17 16:54:55,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2160 transitions. [2021-12-17 16:54:55,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:55,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:55,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:55,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-17 16:54:55,650 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:55,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:55,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1326356012, now seen corresponding path program 1 times [2021-12-17 16:54:55,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:55,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769413436] [2021-12-17 16:54:55,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:55,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:55,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:55,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769413436] [2021-12-17 16:54:55,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769413436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:55,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:55,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:55,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054699244] [2021-12-17 16:54:55,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:55,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:55,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:55,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:55,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:55,765 INFO L87 Difference]: Start difference. First operand 1543 states and 2160 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:57,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:57,922 INFO L93 Difference]: Finished difference Result 2980 states and 4224 transitions. [2021-12-17 16:54:57,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:57,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:57,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:54:57,925 INFO L225 Difference]: With dead ends: 2980 [2021-12-17 16:54:57,925 INFO L226 Difference]: Without dead ends: 2722 [2021-12-17 16:54:57,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:54:57,926 INFO L933 BasicCegarLoop]: 1085 mSDtfsCounter, 5415 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 4393 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5415 SdHoareTripleChecker+Valid, 5583 SdHoareTripleChecker+Invalid, 4441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:54:57,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5415 Valid, 5583 Invalid, 4441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4393 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:54:57,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-17 16:54:58,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-17 16:54:58,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4253632760898283) internal successors, (2158), 1542 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:58,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2158 transitions. [2021-12-17 16:54:58,043 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2158 transitions. Word has length 111 [2021-12-17 16:54:58,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:54:58,044 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2158 transitions. [2021-12-17 16:54:58,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:58,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2158 transitions. [2021-12-17 16:54:58,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:54:58,045 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:54:58,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:54:58,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-17 16:54:58,046 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:54:58,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:54:58,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1814914143, now seen corresponding path program 1 times [2021-12-17 16:54:58,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:54:58,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202644711] [2021-12-17 16:54:58,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:54:58,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:54:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:54:58,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:54:58,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:54:58,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202644711] [2021-12-17 16:54:58,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202644711] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:54:58,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:54:58,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:54:58,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791345950] [2021-12-17 16:54:58,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:54:58,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:54:58,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:54:58,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:54:58,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:54:58,172 INFO L87 Difference]: Start difference. First operand 1543 states and 2158 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:54:59,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:54:59,998 INFO L93 Difference]: Finished difference Result 2902 states and 4109 transitions. [2021-12-17 16:54:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:54:59,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:54:59,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:00,001 INFO L225 Difference]: With dead ends: 2902 [2021-12-17 16:55:00,001 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:55:00,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:00,002 INFO L933 BasicCegarLoop]: 1107 mSDtfsCounter, 3597 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 3836 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3597 SdHoareTripleChecker+Valid, 4702 SdHoareTripleChecker+Invalid, 3897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:00,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3597 Valid, 4702 Invalid, 3897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3836 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:55:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:55:00,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:55:00,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4240422721268164) internal successors, (2156), 1542 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:00,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2156 transitions. [2021-12-17 16:55:00,159 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2156 transitions. Word has length 111 [2021-12-17 16:55:00,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:00,159 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2156 transitions. [2021-12-17 16:55:00,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2156 transitions. [2021-12-17 16:55:00,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:55:00,161 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:00,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:00,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-17 16:55:00,161 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:00,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:00,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1982803805, now seen corresponding path program 1 times [2021-12-17 16:55:00,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:00,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309891731] [2021-12-17 16:55:00,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:00,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:00,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:00,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309891731] [2021-12-17 16:55:00,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309891731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:00,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:00,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:00,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770553306] [2021-12-17 16:55:00,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:00,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:00,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:00,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:00,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:00,272 INFO L87 Difference]: Start difference. First operand 1543 states and 2156 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:02,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:02,374 INFO L93 Difference]: Finished difference Result 3002 states and 4247 transitions. [2021-12-17 16:55:02,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:02,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:55:02,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:02,377 INFO L225 Difference]: With dead ends: 3002 [2021-12-17 16:55:02,378 INFO L226 Difference]: Without dead ends: 2722 [2021-12-17 16:55:02,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:02,379 INFO L933 BasicCegarLoop]: 1140 mSDtfsCounter, 5078 mSDsluCounter, 4685 mSDsCounter, 0 mSdLazyCounter, 4613 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5078 SdHoareTripleChecker+Valid, 5825 SdHoareTripleChecker+Invalid, 4659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 4613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:02,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5078 Valid, 5825 Invalid, 4659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 4613 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:55:02,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-17 16:55:02,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-17 16:55:02,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4227212681638044) internal successors, (2154), 1542 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:02,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2154 transitions. [2021-12-17 16:55:02,501 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2154 transitions. Word has length 111 [2021-12-17 16:55:02,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:02,501 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2154 transitions. [2021-12-17 16:55:02,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:02,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2154 transitions. [2021-12-17 16:55:02,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 16:55:02,504 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:02,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:02,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-17 16:55:02,504 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:02,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1649678164, now seen corresponding path program 1 times [2021-12-17 16:55:02,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:02,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373746502] [2021-12-17 16:55:02,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:02,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:02,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:02,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:02,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373746502] [2021-12-17 16:55:02,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373746502] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:02,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:02,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:02,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947890555] [2021-12-17 16:55:02,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:02,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:02,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:02,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:02,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:02,619 INFO L87 Difference]: Start difference. First operand 1543 states and 2154 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:04,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:04,496 INFO L93 Difference]: Finished difference Result 3174 states and 4486 transitions. [2021-12-17 16:55:04,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:04,496 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-12-17 16:55:04,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:04,499 INFO L225 Difference]: With dead ends: 3174 [2021-12-17 16:55:04,499 INFO L226 Difference]: Without dead ends: 2754 [2021-12-17 16:55:04,500 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:55:04,501 INFO L933 BasicCegarLoop]: 1328 mSDtfsCounter, 3544 mSDsluCounter, 3846 mSDsCounter, 0 mSdLazyCounter, 4089 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3544 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 4110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:04,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3544 Valid, 5174 Invalid, 4110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4089 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:55:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-12-17 16:55:04,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1543. [2021-12-17 16:55:04,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4214002642007926) internal successors, (2152), 1542 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:04,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2152 transitions. [2021-12-17 16:55:04,651 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2152 transitions. Word has length 111 [2021-12-17 16:55:04,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:04,651 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2152 transitions. [2021-12-17 16:55:04,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:04,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2152 transitions. [2021-12-17 16:55:04,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:04,653 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:04,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:04,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-17 16:55:04,653 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:04,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:04,654 INFO L85 PathProgramCache]: Analyzing trace with hash -202027273, now seen corresponding path program 1 times [2021-12-17 16:55:04,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:04,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676575841] [2021-12-17 16:55:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:04,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:04,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:04,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:04,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676575841] [2021-12-17 16:55:04,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676575841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:04,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:04,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:04,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374180004] [2021-12-17 16:55:04,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:04,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:04,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:04,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:04,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:04,771 INFO L87 Difference]: Start difference. First operand 1543 states and 2152 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:06,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:06,726 INFO L93 Difference]: Finished difference Result 2824 states and 3978 transitions. [2021-12-17 16:55:06,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:06,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:06,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:06,729 INFO L225 Difference]: With dead ends: 2824 [2021-12-17 16:55:06,729 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:55:06,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:06,730 INFO L933 BasicCegarLoop]: 1069 mSDtfsCounter, 6345 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 3777 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6345 SdHoareTripleChecker+Valid, 4508 SdHoareTripleChecker+Invalid, 3957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 3777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:06,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6345 Valid, 4508 Invalid, 3957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 3777 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:55:06,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:55:06,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:55:06,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4207397622192866) internal successors, (2151), 1542 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2151 transitions. [2021-12-17 16:55:06,857 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2151 transitions. Word has length 113 [2021-12-17 16:55:06,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:06,857 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2151 transitions. [2021-12-17 16:55:06,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:06,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2151 transitions. [2021-12-17 16:55:06,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:06,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:06,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:06,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-17 16:55:06,859 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:06,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:06,860 INFO L85 PathProgramCache]: Analyzing trace with hash -540569381, now seen corresponding path program 1 times [2021-12-17 16:55:06,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:06,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917459418] [2021-12-17 16:55:06,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:06,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:06,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:06,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917459418] [2021-12-17 16:55:06,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917459418] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:06,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:06,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:06,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101345608] [2021-12-17 16:55:06,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:06,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:06,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:06,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:06,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:06,978 INFO L87 Difference]: Start difference. First operand 1543 states and 2151 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:08,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:08,975 INFO L93 Difference]: Finished difference Result 2824 states and 3977 transitions. [2021-12-17 16:55:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:08,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:08,978 INFO L225 Difference]: With dead ends: 2824 [2021-12-17 16:55:08,978 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:55:08,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:08,979 INFO L933 BasicCegarLoop]: 1086 mSDtfsCounter, 4941 mSDsluCounter, 3868 mSDsCounter, 0 mSdLazyCounter, 4121 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 SdHoareTripleChecker+Valid, 4954 SdHoareTripleChecker+Invalid, 4266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 4121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:08,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4941 Valid, 4954 Invalid, 4266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 4121 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:55:08,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:55:09,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:55:09,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4200792602377807) internal successors, (2150), 1542 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:09,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2150 transitions. [2021-12-17 16:55:09,118 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2150 transitions. Word has length 113 [2021-12-17 16:55:09,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:09,118 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2150 transitions. [2021-12-17 16:55:09,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:09,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2150 transitions. [2021-12-17 16:55:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:09,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:09,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:09,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-17 16:55:09,121 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:09,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:09,121 INFO L85 PathProgramCache]: Analyzing trace with hash -552255394, now seen corresponding path program 1 times [2021-12-17 16:55:09,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:09,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504924629] [2021-12-17 16:55:09,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:09,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:09,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:09,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504924629] [2021-12-17 16:55:09,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504924629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:09,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:09,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:09,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818168811] [2021-12-17 16:55:09,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:09,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:09,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:09,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:09,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:09,237 INFO L87 Difference]: Start difference. First operand 1543 states and 2150 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:11,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:11,439 INFO L93 Difference]: Finished difference Result 2822 states and 3973 transitions. [2021-12-17 16:55:11,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:11,439 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:11,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:11,442 INFO L225 Difference]: With dead ends: 2822 [2021-12-17 16:55:11,443 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:55:11,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:11,444 INFO L933 BasicCegarLoop]: 1080 mSDtfsCounter, 6324 mSDsluCounter, 4413 mSDsCounter, 0 mSdLazyCounter, 4501 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6324 SdHoareTripleChecker+Valid, 5493 SdHoareTripleChecker+Invalid, 4681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 4501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:11,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6324 Valid, 5493 Invalid, 4681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 4501 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:55:11,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:55:11,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:55:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4194187582562747) internal successors, (2149), 1542 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2149 transitions. [2021-12-17 16:55:11,600 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2149 transitions. Word has length 113 [2021-12-17 16:55:11,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:11,600 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2149 transitions. [2021-12-17 16:55:11,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:11,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2149 transitions. [2021-12-17 16:55:11,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:11,602 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:11,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:11,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-17 16:55:11,603 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:11,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:11,603 INFO L85 PathProgramCache]: Analyzing trace with hash 626696900, now seen corresponding path program 1 times [2021-12-17 16:55:11,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:11,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269915201] [2021-12-17 16:55:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:11,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:11,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:11,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:11,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269915201] [2021-12-17 16:55:11,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269915201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:11,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:11,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:11,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381020739] [2021-12-17 16:55:11,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:11,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:11,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:11,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:11,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:11,709 INFO L87 Difference]: Start difference. First operand 1543 states and 2149 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:13,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:13,486 INFO L93 Difference]: Finished difference Result 2727 states and 3805 transitions. [2021-12-17 16:55:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:13,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:13,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:13,490 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:55:13,490 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:55:13,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:13,491 INFO L933 BasicCegarLoop]: 834 mSDtfsCounter, 4600 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 3061 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4600 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 3359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 3061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:13,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4600 Valid, 3436 Invalid, 3359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 3061 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:55:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:55:13,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:55:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.418758256274769) internal successors, (2148), 1542 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2148 transitions. [2021-12-17 16:55:13,653 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2148 transitions. Word has length 113 [2021-12-17 16:55:13,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:13,653 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2148 transitions. [2021-12-17 16:55:13,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2148 transitions. [2021-12-17 16:55:13,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:13,656 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:13,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:13,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-17 16:55:13,657 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:13,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:13,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1581029330, now seen corresponding path program 1 times [2021-12-17 16:55:13,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:13,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262914875] [2021-12-17 16:55:13,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:13,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:13,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:13,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262914875] [2021-12-17 16:55:13,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262914875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:13,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:13,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:13,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725451359] [2021-12-17 16:55:13,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:13,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:13,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:13,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:13,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:13,768 INFO L87 Difference]: Start difference. First operand 1543 states and 2148 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:15,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:15,682 INFO L93 Difference]: Finished difference Result 2824 states and 3972 transitions. [2021-12-17 16:55:15,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:15,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:15,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:15,685 INFO L225 Difference]: With dead ends: 2824 [2021-12-17 16:55:15,685 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:55:15,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:15,686 INFO L933 BasicCegarLoop]: 1086 mSDtfsCounter, 6302 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 3730 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6302 SdHoareTripleChecker+Valid, 4487 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 3730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:15,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6302 Valid, 4487 Invalid, 3910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 3730 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:55:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:55:15,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:55:15,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.418097754293263) internal successors, (2147), 1542 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:15,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2147 transitions. [2021-12-17 16:55:15,826 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2147 transitions. Word has length 113 [2021-12-17 16:55:15,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:15,826 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2147 transitions. [2021-12-17 16:55:15,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:15,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2147 transitions. [2021-12-17 16:55:15,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:15,828 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:15,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:15,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-17 16:55:15,828 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:15,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:15,828 INFO L85 PathProgramCache]: Analyzing trace with hash 154895254, now seen corresponding path program 1 times [2021-12-17 16:55:15,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:15,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74912595] [2021-12-17 16:55:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:15,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:15,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:15,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74912595] [2021-12-17 16:55:15,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74912595] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:15,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:15,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:15,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803420205] [2021-12-17 16:55:15,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:15,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:15,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:15,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:15,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:15,925 INFO L87 Difference]: Start difference. First operand 1543 states and 2147 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:17,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:17,655 INFO L93 Difference]: Finished difference Result 2727 states and 3802 transitions. [2021-12-17 16:55:17,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:17,659 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:17,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:17,662 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:55:17,662 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:55:17,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:17,663 INFO L933 BasicCegarLoop]: 839 mSDtfsCounter, 3992 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 3076 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3992 SdHoareTripleChecker+Valid, 3456 SdHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 3076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:17,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3992 Valid, 3456 Invalid, 3307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 3076 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:55:17,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:55:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:55:17,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4174372523117569) internal successors, (2146), 1542 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:17,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2146 transitions. [2021-12-17 16:55:17,808 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2146 transitions. Word has length 113 [2021-12-17 16:55:17,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:17,808 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2146 transitions. [2021-12-17 16:55:17,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:17,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2146 transitions. [2021-12-17 16:55:17,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:17,809 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:17,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:17,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-17 16:55:17,810 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:17,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:17,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1853918876, now seen corresponding path program 1 times [2021-12-17 16:55:17,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:17,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280537224] [2021-12-17 16:55:17,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:17,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:17,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:17,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280537224] [2021-12-17 16:55:17,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280537224] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:17,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:17,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:17,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727675350] [2021-12-17 16:55:17,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:17,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:17,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:17,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:17,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:17,914 INFO L87 Difference]: Start difference. First operand 1543 states and 2146 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:19,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:19,730 INFO L93 Difference]: Finished difference Result 2732 states and 3805 transitions. [2021-12-17 16:55:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:19,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:19,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:19,733 INFO L225 Difference]: With dead ends: 2732 [2021-12-17 16:55:19,733 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:55:19,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:19,734 INFO L933 BasicCegarLoop]: 840 mSDtfsCounter, 5796 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 3065 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5796 SdHoareTripleChecker+Valid, 3456 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 3065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:19,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5796 Valid, 3456 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 3065 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:55:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:55:19,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:55:19,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.416776750330251) internal successors, (2145), 1542 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:19,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2145 transitions. [2021-12-17 16:55:19,936 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2145 transitions. Word has length 113 [2021-12-17 16:55:19,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:19,936 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2145 transitions. [2021-12-17 16:55:19,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:19,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2145 transitions. [2021-12-17 16:55:19,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:19,938 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:19,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:19,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-17 16:55:19,939 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:19,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:19,939 INFO L85 PathProgramCache]: Analyzing trace with hash -120006090, now seen corresponding path program 1 times [2021-12-17 16:55:19,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:19,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95194321] [2021-12-17 16:55:19,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:19,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:20,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:20,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:20,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95194321] [2021-12-17 16:55:20,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95194321] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:20,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:20,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:20,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087466662] [2021-12-17 16:55:20,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:20,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:20,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:20,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:20,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:20,045 INFO L87 Difference]: Start difference. First operand 1543 states and 2145 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:22,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:22,071 INFO L93 Difference]: Finished difference Result 2898 states and 4078 transitions. [2021-12-17 16:55:22,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:22,071 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:22,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:22,074 INFO L225 Difference]: With dead ends: 2898 [2021-12-17 16:55:22,074 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:55:22,074 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:55:22,075 INFO L933 BasicCegarLoop]: 1220 mSDtfsCounter, 5005 mSDsluCounter, 3795 mSDsCounter, 0 mSdLazyCounter, 4057 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5005 SdHoareTripleChecker+Valid, 5015 SdHoareTripleChecker+Invalid, 4144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:22,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5005 Valid, 5015 Invalid, 4144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4057 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:55:22,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:55:22,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:55:22,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.416116248348745) internal successors, (2144), 1542 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:22,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2144 transitions. [2021-12-17 16:55:22,221 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2144 transitions. Word has length 113 [2021-12-17 16:55:22,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:22,222 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2144 transitions. [2021-12-17 16:55:22,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:22,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2144 transitions. [2021-12-17 16:55:22,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:22,224 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:22,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:22,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-17 16:55:22,225 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:22,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:22,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2072946245, now seen corresponding path program 1 times [2021-12-17 16:55:22,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:22,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160675265] [2021-12-17 16:55:22,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:22,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:22,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:22,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160675265] [2021-12-17 16:55:22,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160675265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:22,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:22,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:22,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131024309] [2021-12-17 16:55:22,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:22,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:22,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:22,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:22,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:22,325 INFO L87 Difference]: Start difference. First operand 1543 states and 2144 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:24,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:24,177 INFO L93 Difference]: Finished difference Result 2732 states and 3802 transitions. [2021-12-17 16:55:24,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:24,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:24,180 INFO L225 Difference]: With dead ends: 2732 [2021-12-17 16:55:24,180 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:55:24,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:24,181 INFO L933 BasicCegarLoop]: 840 mSDtfsCounter, 5787 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 3057 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5787 SdHoareTripleChecker+Valid, 3456 SdHoareTripleChecker+Invalid, 3416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 3057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:24,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5787 Valid, 3456 Invalid, 3416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 3057 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:55:24,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:55:24,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:55:24,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.415455746367239) internal successors, (2143), 1542 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:24,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2143 transitions. [2021-12-17 16:55:24,331 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2143 transitions. Word has length 113 [2021-12-17 16:55:24,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:24,331 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2143 transitions. [2021-12-17 16:55:24,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:24,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2143 transitions. [2021-12-17 16:55:24,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:24,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:24,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:24,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-17 16:55:24,333 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:24,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:24,334 INFO L85 PathProgramCache]: Analyzing trace with hash 369909324, now seen corresponding path program 1 times [2021-12-17 16:55:24,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:24,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061601921] [2021-12-17 16:55:24,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:24,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:24,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:24,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061601921] [2021-12-17 16:55:24,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061601921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:24,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:24,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:24,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138235157] [2021-12-17 16:55:24,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:24,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:24,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:24,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:24,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:24,442 INFO L87 Difference]: Start difference. First operand 1543 states and 2143 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:26,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:26,764 INFO L93 Difference]: Finished difference Result 2824 states and 3965 transitions. [2021-12-17 16:55:26,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:26,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:26,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:26,768 INFO L225 Difference]: With dead ends: 2824 [2021-12-17 16:55:26,768 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:55:26,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:26,769 INFO L933 BasicCegarLoop]: 1095 mSDtfsCounter, 4901 mSDsluCounter, 4462 mSDsCounter, 0 mSdLazyCounter, 4506 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4901 SdHoareTripleChecker+Valid, 5557 SdHoareTripleChecker+Invalid, 4650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 4506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:26,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4901 Valid, 5557 Invalid, 4650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 4506 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 16:55:26,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:55:26,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:55:26,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4147952443857332) internal successors, (2142), 1542 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2142 transitions. [2021-12-17 16:55:26,926 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2142 transitions. Word has length 113 [2021-12-17 16:55:26,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:26,926 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2142 transitions. [2021-12-17 16:55:26,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:26,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2142 transitions. [2021-12-17 16:55:26,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:26,928 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:26,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:26,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-17 16:55:26,929 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:26,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:26,929 INFO L85 PathProgramCache]: Analyzing trace with hash 70860839, now seen corresponding path program 1 times [2021-12-17 16:55:26,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:26,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025200500] [2021-12-17 16:55:26,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:26,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:27,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:27,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025200500] [2021-12-17 16:55:27,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025200500] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:27,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:27,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:27,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371479135] [2021-12-17 16:55:27,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:27,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:27,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:27,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:27,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:27,023 INFO L87 Difference]: Start difference. First operand 1543 states and 2142 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:29,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:29,221 INFO L93 Difference]: Finished difference Result 2824 states and 3964 transitions. [2021-12-17 16:55:29,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:29,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:29,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:29,225 INFO L225 Difference]: With dead ends: 2824 [2021-12-17 16:55:29,225 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:55:29,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:29,227 INFO L933 BasicCegarLoop]: 1112 mSDtfsCounter, 4871 mSDsluCounter, 4417 mSDsCounter, 0 mSdLazyCounter, 4486 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4871 SdHoareTripleChecker+Valid, 5529 SdHoareTripleChecker+Invalid, 4630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 4486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:29,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4871 Valid, 5529 Invalid, 4630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 4486 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:55:29,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:55:29,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:55:29,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4141347424042272) internal successors, (2141), 1542 states have internal predecessors, (2141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2141 transitions. [2021-12-17 16:55:29,394 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2141 transitions. Word has length 113 [2021-12-17 16:55:29,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:29,395 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2141 transitions. [2021-12-17 16:55:29,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:29,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2141 transitions. [2021-12-17 16:55:29,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:29,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:29,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:29,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-17 16:55:29,396 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:29,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:29,397 INFO L85 PathProgramCache]: Analyzing trace with hash 409402947, now seen corresponding path program 1 times [2021-12-17 16:55:29,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:29,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281095749] [2021-12-17 16:55:29,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:29,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:29,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:29,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:29,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281095749] [2021-12-17 16:55:29,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281095749] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:29,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:29,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:29,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192701530] [2021-12-17 16:55:29,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:29,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:29,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:29,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:29,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:29,502 INFO L87 Difference]: Start difference. First operand 1543 states and 2141 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:31,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:31,655 INFO L93 Difference]: Finished difference Result 2824 states and 3962 transitions. [2021-12-17 16:55:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:31,656 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:31,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:31,659 INFO L225 Difference]: With dead ends: 2824 [2021-12-17 16:55:31,659 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:55:31,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:31,660 INFO L933 BasicCegarLoop]: 1040 mSDtfsCounter, 4992 mSDsluCounter, 4299 mSDsCounter, 0 mSdLazyCounter, 4316 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4992 SdHoareTripleChecker+Valid, 5339 SdHoareTripleChecker+Invalid, 4462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 4316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:31,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4992 Valid, 5339 Invalid, 4462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 4316 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:55:31,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:55:31,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:55:31,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4134742404227212) internal successors, (2140), 1542 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:31,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2140 transitions. [2021-12-17 16:55:31,838 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2140 transitions. Word has length 113 [2021-12-17 16:55:31,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:31,839 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2140 transitions. [2021-12-17 16:55:31,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:31,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2140 transitions. [2021-12-17 16:55:31,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:31,840 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:31,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:31,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-17 16:55:31,840 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:31,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:31,841 INFO L85 PathProgramCache]: Analyzing trace with hash -46841622, now seen corresponding path program 1 times [2021-12-17 16:55:31,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:31,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882212350] [2021-12-17 16:55:31,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:31,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:31,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:31,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882212350] [2021-12-17 16:55:31,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882212350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:31,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:31,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:31,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399294565] [2021-12-17 16:55:31,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:31,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:31,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:31,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:31,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:31,931 INFO L87 Difference]: Start difference. First operand 1543 states and 2140 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:34,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:34,005 INFO L93 Difference]: Finished difference Result 2889 states and 4062 transitions. [2021-12-17 16:55:34,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:34,006 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:34,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:34,009 INFO L225 Difference]: With dead ends: 2889 [2021-12-17 16:55:34,009 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:55:34,010 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:55:34,010 INFO L933 BasicCegarLoop]: 1220 mSDtfsCounter, 4142 mSDsluCounter, 3817 mSDsCounter, 0 mSdLazyCounter, 4035 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4142 SdHoareTripleChecker+Valid, 5037 SdHoareTripleChecker+Invalid, 4111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 4035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:34,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4142 Valid, 5037 Invalid, 4111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 4035 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:55:34,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:55:34,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:55:34,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4128137384412154) internal successors, (2139), 1542 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2139 transitions. [2021-12-17 16:55:34,235 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2139 transitions. Word has length 113 [2021-12-17 16:55:34,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:34,235 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2139 transitions. [2021-12-17 16:55:34,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2139 transitions. [2021-12-17 16:55:34,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:34,236 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:34,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:34,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-17 16:55:34,236 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:34,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:34,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1288206653, now seen corresponding path program 1 times [2021-12-17 16:55:34,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:34,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441303122] [2021-12-17 16:55:34,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:34,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:34,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:34,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441303122] [2021-12-17 16:55:34,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441303122] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:34,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:34,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:34,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018028167] [2021-12-17 16:55:34,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:34,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:34,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:34,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:34,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:34,342 INFO L87 Difference]: Start difference. First operand 1543 states and 2139 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:36,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:36,255 INFO L93 Difference]: Finished difference Result 2731 states and 3795 transitions. [2021-12-17 16:55:36,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:36,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:36,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:36,259 INFO L225 Difference]: With dead ends: 2731 [2021-12-17 16:55:36,259 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:55:36,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:36,260 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 5698 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 3097 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5698 SdHoareTripleChecker+Valid, 3532 SdHoareTripleChecker+Invalid, 3449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 3097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:36,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5698 Valid, 3532 Invalid, 3449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 3097 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:55:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:55:36,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:55:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4114927344782033) internal successors, (2137), 1542 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:36,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2137 transitions. [2021-12-17 16:55:36,446 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2137 transitions. Word has length 113 [2021-12-17 16:55:36,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:36,446 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2137 transitions. [2021-12-17 16:55:36,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:36,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2137 transitions. [2021-12-17 16:55:36,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:36,448 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:36,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:36,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-17 16:55:36,448 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:36,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:36,448 INFO L85 PathProgramCache]: Analyzing trace with hash 563017332, now seen corresponding path program 1 times [2021-12-17 16:55:36,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:36,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300179820] [2021-12-17 16:55:36,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:36,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:36,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:36,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:36,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300179820] [2021-12-17 16:55:36,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300179820] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:36,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:36,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:36,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634935045] [2021-12-17 16:55:36,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:36,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:36,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:36,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:36,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:36,553 INFO L87 Difference]: Start difference. First operand 1543 states and 2137 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:38,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:38,606 INFO L93 Difference]: Finished difference Result 2834 states and 3970 transitions. [2021-12-17 16:55:38,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:38,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:38,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:38,610 INFO L225 Difference]: With dead ends: 2834 [2021-12-17 16:55:38,610 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:55:38,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:38,611 INFO L933 BasicCegarLoop]: 1131 mSDtfsCounter, 6189 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3791 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6189 SdHoareTripleChecker+Valid, 4661 SdHoareTripleChecker+Invalid, 3969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 3791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:38,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6189 Valid, 4661 Invalid, 3969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 3791 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:55:38,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:55:38,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:55:38,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4101717305151915) internal successors, (2135), 1542 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:38,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2135 transitions. [2021-12-17 16:55:38,809 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2135 transitions. Word has length 113 [2021-12-17 16:55:38,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:38,810 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2135 transitions. [2021-12-17 16:55:38,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:38,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2135 transitions. [2021-12-17 16:55:38,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:38,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:38,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:38,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-17 16:55:38,812 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:38,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:38,812 INFO L85 PathProgramCache]: Analyzing trace with hash 194915157, now seen corresponding path program 1 times [2021-12-17 16:55:38,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:38,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910248949] [2021-12-17 16:55:38,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:38,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:38,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:38,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910248949] [2021-12-17 16:55:38,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910248949] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:38,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:38,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:38,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980513016] [2021-12-17 16:55:38,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:38,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:38,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:38,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:38,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:38,902 INFO L87 Difference]: Start difference. First operand 1543 states and 2135 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:40,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:40,737 INFO L93 Difference]: Finished difference Result 2566 states and 3539 transitions. [2021-12-17 16:55:40,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:40,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:40,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:40,740 INFO L225 Difference]: With dead ends: 2566 [2021-12-17 16:55:40,740 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:55:40,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:40,742 INFO L933 BasicCegarLoop]: 866 mSDtfsCounter, 5665 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 3112 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5665 SdHoareTripleChecker+Valid, 3561 SdHoareTripleChecker+Invalid, 3463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 3112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:40,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5665 Valid, 3561 Invalid, 3463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 3112 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:55:40,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:55:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:55:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4088507265521797) internal successors, (2133), 1542 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2133 transitions. [2021-12-17 16:55:40,930 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2133 transitions. Word has length 113 [2021-12-17 16:55:40,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:40,931 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2133 transitions. [2021-12-17 16:55:40,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:40,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2133 transitions. [2021-12-17 16:55:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:40,932 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:40,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:40,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-17 16:55:40,932 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:40,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:40,933 INFO L85 PathProgramCache]: Analyzing trace with hash 603760385, now seen corresponding path program 1 times [2021-12-17 16:55:40,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:40,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354150027] [2021-12-17 16:55:40,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:40,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:41,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:41,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:41,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354150027] [2021-12-17 16:55:41,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354150027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:41,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:41,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:41,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604840537] [2021-12-17 16:55:41,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:41,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:41,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:41,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:41,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:41,020 INFO L87 Difference]: Start difference. First operand 1543 states and 2133 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:43,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:43,050 INFO L93 Difference]: Finished difference Result 2908 states and 4075 transitions. [2021-12-17 16:55:43,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:43,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:43,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:43,053 INFO L225 Difference]: With dead ends: 2908 [2021-12-17 16:55:43,053 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:55:43,054 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:55:43,054 INFO L933 BasicCegarLoop]: 1220 mSDtfsCounter, 4975 mSDsluCounter, 3803 mSDsCounter, 0 mSdLazyCounter, 3999 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4975 SdHoareTripleChecker+Valid, 5023 SdHoareTripleChecker+Invalid, 4086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:43,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4975 Valid, 5023 Invalid, 4086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3999 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:55:43,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:55:43,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:55:43,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4075297225891679) internal successors, (2131), 1542 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:43,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2131 transitions. [2021-12-17 16:55:43,223 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2131 transitions. Word has length 113 [2021-12-17 16:55:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:43,223 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2131 transitions. [2021-12-17 16:55:43,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:43,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2131 transitions. [2021-12-17 16:55:43,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:43,224 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:43,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:43,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-17 16:55:43,225 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:43,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:43,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1648532600, now seen corresponding path program 1 times [2021-12-17 16:55:43,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:43,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217783409] [2021-12-17 16:55:43,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:43,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:43,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:43,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:43,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217783409] [2021-12-17 16:55:43,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217783409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:43,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:43,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:43,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506538641] [2021-12-17 16:55:43,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:43,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:43,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:43,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:43,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:43,314 INFO L87 Difference]: Start difference. First operand 1543 states and 2131 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:45,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:45,171 INFO L93 Difference]: Finished difference Result 2727 states and 3779 transitions. [2021-12-17 16:55:45,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:45,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:45,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:45,174 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:55:45,174 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:55:45,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:45,175 INFO L933 BasicCegarLoop]: 865 mSDtfsCounter, 5650 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5650 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:45,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5650 Valid, 3560 Invalid, 3460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 3110 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:55:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:55:45,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:55:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4062087186261558) internal successors, (2129), 1542 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:45,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2129 transitions. [2021-12-17 16:55:45,344 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2129 transitions. Word has length 113 [2021-12-17 16:55:45,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:45,344 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2129 transitions. [2021-12-17 16:55:45,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:45,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2129 transitions. [2021-12-17 16:55:45,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:45,345 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:45,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:45,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-17 16:55:45,346 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:45,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:45,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1587255138, now seen corresponding path program 1 times [2021-12-17 16:55:45,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:45,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970487560] [2021-12-17 16:55:45,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:45,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:45,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:45,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:45,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970487560] [2021-12-17 16:55:45,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970487560] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:45,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:45,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:45,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351803632] [2021-12-17 16:55:45,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:45,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:45,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:45,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:45,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:45,443 INFO L87 Difference]: Start difference. First operand 1543 states and 2129 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:47,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:47,716 INFO L93 Difference]: Finished difference Result 2832 states and 3959 transitions. [2021-12-17 16:55:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:47,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:47,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:47,718 INFO L225 Difference]: With dead ends: 2832 [2021-12-17 16:55:47,719 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:55:47,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:47,719 INFO L933 BasicCegarLoop]: 1155 mSDtfsCounter, 4772 mSDsluCounter, 4548 mSDsCounter, 0 mSdLazyCounter, 4558 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 5703 SdHoareTripleChecker+Invalid, 4700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 4558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:47,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4772 Valid, 5703 Invalid, 4700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 4558 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:55:47,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:55:47,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:55:47,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.404887714663144) internal successors, (2127), 1542 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:47,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2127 transitions. [2021-12-17 16:55:47,898 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2127 transitions. Word has length 113 [2021-12-17 16:55:47,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:47,898 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2127 transitions. [2021-12-17 16:55:47,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:47,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2127 transitions. [2021-12-17 16:55:47,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:47,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:47,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:47,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-17 16:55:47,900 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:47,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:47,900 INFO L85 PathProgramCache]: Analyzing trace with hash 602727429, now seen corresponding path program 1 times [2021-12-17 16:55:47,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:47,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580664693] [2021-12-17 16:55:47,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:47,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:48,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:48,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:48,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580664693] [2021-12-17 16:55:48,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580664693] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:48,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:48,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:48,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239068524] [2021-12-17 16:55:48,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:48,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:48,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:48,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:48,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:48,014 INFO L87 Difference]: Start difference. First operand 1543 states and 2127 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:50,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:50,209 INFO L93 Difference]: Finished difference Result 2834 states and 3956 transitions. [2021-12-17 16:55:50,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:50,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:50,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:50,213 INFO L225 Difference]: With dead ends: 2834 [2021-12-17 16:55:50,213 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:55:50,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:50,215 INFO L933 BasicCegarLoop]: 1155 mSDtfsCounter, 4773 mSDsluCounter, 4069 mSDsCounter, 0 mSdLazyCounter, 4187 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4773 SdHoareTripleChecker+Valid, 5224 SdHoareTripleChecker+Invalid, 4329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 4187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:50,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4773 Valid, 5224 Invalid, 4329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 4187 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:55:50,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:55:50,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:55:50,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4035667107001322) internal successors, (2125), 1542 states have internal predecessors, (2125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:50,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2125 transitions. [2021-12-17 16:55:50,405 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2125 transitions. Word has length 113 [2021-12-17 16:55:50,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:50,406 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2125 transitions. [2021-12-17 16:55:50,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:50,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2125 transitions. [2021-12-17 16:55:50,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:50,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:50,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:50,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-17 16:55:50,407 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:50,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:50,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1248713030, now seen corresponding path program 1 times [2021-12-17 16:55:50,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:50,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710778501] [2021-12-17 16:55:50,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:50,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:50,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:50,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710778501] [2021-12-17 16:55:50,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710778501] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:50,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:50,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:50,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797541363] [2021-12-17 16:55:50,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:50,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:50,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:50,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:50,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:50,502 INFO L87 Difference]: Start difference. First operand 1543 states and 2125 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:52,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:52,389 INFO L93 Difference]: Finished difference Result 2731 states and 3775 transitions. [2021-12-17 16:55:52,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:52,390 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:52,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:52,393 INFO L225 Difference]: With dead ends: 2731 [2021-12-17 16:55:52,393 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:55:52,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:52,394 INFO L933 BasicCegarLoop]: 879 mSDtfsCounter, 3878 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 3139 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 3364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 3139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:52,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3878 Valid, 3616 Invalid, 3364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 3139 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:55:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:55:52,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:55:52,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4022457067371201) internal successors, (2123), 1542 states have internal predecessors, (2123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:52,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2123 transitions. [2021-12-17 16:55:52,577 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2123 transitions. Word has length 113 [2021-12-17 16:55:52,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:52,578 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2123 transitions. [2021-12-17 16:55:52,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:52,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2123 transitions. [2021-12-17 16:55:52,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:52,579 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:52,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:52,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-17 16:55:52,579 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:52,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:52,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1609523413, now seen corresponding path program 1 times [2021-12-17 16:55:52,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:52,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645165771] [2021-12-17 16:55:52,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:52,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:52,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:52,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:52,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645165771] [2021-12-17 16:55:52,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645165771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:52,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:52,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:52,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595457054] [2021-12-17 16:55:52,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:52,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:52,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:52,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:52,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:52,679 INFO L87 Difference]: Start difference. First operand 1543 states and 2123 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:54,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:54,848 INFO L93 Difference]: Finished difference Result 3018 states and 4213 transitions. [2021-12-17 16:55:54,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:54,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:54,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:54,851 INFO L225 Difference]: With dead ends: 3018 [2021-12-17 16:55:54,852 INFO L226 Difference]: Without dead ends: 2722 [2021-12-17 16:55:54,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:54,852 INFO L933 BasicCegarLoop]: 1310 mSDtfsCounter, 4848 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 4349 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4848 SdHoareTripleChecker+Valid, 5663 SdHoareTripleChecker+Invalid, 4393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:54,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4848 Valid, 5663 Invalid, 4393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 4349 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:55:54,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-17 16:55:55,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-17 16:55:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4009247027741083) internal successors, (2121), 1542 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:55,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2121 transitions. [2021-12-17 16:55:55,038 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2121 transitions. Word has length 113 [2021-12-17 16:55:55,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:55,038 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2121 transitions. [2021-12-17 16:55:55,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:55,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2121 transitions. [2021-12-17 16:55:55,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:55,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:55,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:55,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-17 16:55:55,040 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:55,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:55,040 INFO L85 PathProgramCache]: Analyzing trace with hash -502514123, now seen corresponding path program 1 times [2021-12-17 16:55:55,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:55,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084249356] [2021-12-17 16:55:55,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:55,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:55,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:55,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084249356] [2021-12-17 16:55:55,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084249356] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:55,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:55,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:55,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836751899] [2021-12-17 16:55:55,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:55,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:55,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:55,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:55,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:55,132 INFO L87 Difference]: Start difference. First operand 1543 states and 2121 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:57,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:57,140 INFO L93 Difference]: Finished difference Result 2920 states and 4076 transitions. [2021-12-17 16:55:57,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:57,141 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:57,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:57,144 INFO L225 Difference]: With dead ends: 2920 [2021-12-17 16:55:57,144 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:55:57,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:57,145 INFO L933 BasicCegarLoop]: 1166 mSDtfsCounter, 4984 mSDsluCounter, 3851 mSDsCounter, 0 mSdLazyCounter, 3864 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 5017 SdHoareTripleChecker+Invalid, 3951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:57,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4984 Valid, 5017 Invalid, 3951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3864 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:55:57,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:55:57,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:55:57,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.3996036988110965) internal successors, (2119), 1542 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:57,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2119 transitions. [2021-12-17 16:55:57,333 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2119 transitions. Word has length 113 [2021-12-17 16:55:57,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:57,333 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2119 transitions. [2021-12-17 16:55:57,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:57,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2119 transitions. [2021-12-17 16:55:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:57,334 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:57,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:57,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-17 16:55:57,334 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:57,335 INFO L85 PathProgramCache]: Analyzing trace with hash -911359351, now seen corresponding path program 1 times [2021-12-17 16:55:57,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:57,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668509154] [2021-12-17 16:55:57,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:57,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:57,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:57,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668509154] [2021-12-17 16:55:57,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668509154] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:57,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:57,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:57,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205869860] [2021-12-17 16:55:57,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:57,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:57,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:57,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:57,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:57,423 INFO L87 Difference]: Start difference. First operand 1543 states and 2119 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:59,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:55:59,347 INFO L93 Difference]: Finished difference Result 2735 states and 3772 transitions. [2021-12-17 16:55:59,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:55:59,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:55:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:55:59,350 INFO L225 Difference]: With dead ends: 2735 [2021-12-17 16:55:59,350 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:55:59,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:55:59,351 INFO L933 BasicCegarLoop]: 879 mSDtfsCounter, 7296 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 3128 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7296 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 3596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 3128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:55:59,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7296 Valid, 3612 Invalid, 3596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 3128 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:55:59,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:55:59,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:55:59,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.3982826948480847) internal successors, (2117), 1542 states have internal predecessors, (2117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:59,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2117 transitions. [2021-12-17 16:55:59,540 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2117 transitions. Word has length 113 [2021-12-17 16:55:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:55:59,540 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2117 transitions. [2021-12-17 16:55:59,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:55:59,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2117 transitions. [2021-12-17 16:55:59,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:55:59,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:55:59,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:55:59,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-17 16:55:59,542 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:55:59,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:55:59,543 INFO L85 PathProgramCache]: Analyzing trace with hash -926787844, now seen corresponding path program 1 times [2021-12-17 16:55:59,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:55:59,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832041387] [2021-12-17 16:55:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:55:59,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:55:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:55:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:55:59,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:55:59,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832041387] [2021-12-17 16:55:59,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832041387] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:55:59,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:55:59,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:55:59,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441501317] [2021-12-17 16:55:59,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:55:59,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:55:59,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:55:59,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:55:59,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:55:59,641 INFO L87 Difference]: Start difference. First operand 1543 states and 2117 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:01,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:01,592 INFO L93 Difference]: Finished difference Result 2735 states and 3768 transitions. [2021-12-17 16:56:01,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:01,592 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:56:01,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:01,595 INFO L225 Difference]: With dead ends: 2735 [2021-12-17 16:56:01,595 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:01,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:01,596 INFO L933 BasicCegarLoop]: 879 mSDtfsCounter, 6163 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 3123 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6163 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 3536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 3123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:01,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6163 Valid, 3612 Invalid, 3536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 3123 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:56:01,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:01,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:56:01,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.3969616908850726) internal successors, (2115), 1542 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:01,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2115 transitions. [2021-12-17 16:56:01,787 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2115 transitions. Word has length 113 [2021-12-17 16:56:01,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:01,787 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2115 transitions. [2021-12-17 16:56:01,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2115 transitions. [2021-12-17 16:56:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:56:01,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:01,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:01,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-12-17 16:56:01,789 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:01,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:01,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1394254486, now seen corresponding path program 1 times [2021-12-17 16:56:01,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:01,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650367600] [2021-12-17 16:56:01,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:01,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:01,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:01,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650367600] [2021-12-17 16:56:01,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650367600] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:01,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:01,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:01,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800347581] [2021-12-17 16:56:01,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:01,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:01,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:01,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:01,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:01,923 INFO L87 Difference]: Start difference. First operand 1543 states and 2115 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:04,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:04,008 INFO L93 Difference]: Finished difference Result 2920 states and 4068 transitions. [2021-12-17 16:56:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:04,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:56:04,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:04,012 INFO L225 Difference]: With dead ends: 2920 [2021-12-17 16:56:04,013 INFO L226 Difference]: Without dead ends: 2698 [2021-12-17 16:56:04,013 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:56:04,014 INFO L933 BasicCegarLoop]: 1281 mSDtfsCounter, 6262 mSDsluCounter, 3978 mSDsCounter, 0 mSdLazyCounter, 4089 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6262 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 4201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 4089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:04,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6262 Valid, 5259 Invalid, 4201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 4089 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:56:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-17 16:56:04,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-17 16:56:04,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.3956406869220608) internal successors, (2113), 1542 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2113 transitions. [2021-12-17 16:56:04,236 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2113 transitions. Word has length 113 [2021-12-17 16:56:04,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:04,236 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2113 transitions. [2021-12-17 16:56:04,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:04,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2113 transitions. [2021-12-17 16:56:04,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:56:04,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:04,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:04,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-12-17 16:56:04,237 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:04,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:04,238 INFO L85 PathProgramCache]: Analyzing trace with hash -558685669, now seen corresponding path program 1 times [2021-12-17 16:56:04,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:04,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906311078] [2021-12-17 16:56:04,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:04,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:04,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:04,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:04,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906311078] [2021-12-17 16:56:04,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906311078] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:04,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:04,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:04,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870227537] [2021-12-17 16:56:04,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:04,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:04,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:04,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:04,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:04,340 INFO L87 Difference]: Start difference. First operand 1543 states and 2113 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:06,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:06,677 INFO L93 Difference]: Finished difference Result 2838 states and 3946 transitions. [2021-12-17 16:56:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:06,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:56:06,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:06,679 INFO L225 Difference]: With dead ends: 2838 [2021-12-17 16:56:06,680 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:56:06,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:06,680 INFO L933 BasicCegarLoop]: 1207 mSDtfsCounter, 4666 mSDsluCounter, 4694 mSDsCounter, 0 mSdLazyCounter, 4639 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4666 SdHoareTripleChecker+Valid, 5901 SdHoareTripleChecker+Invalid, 4779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 4639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:06,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4666 Valid, 5901 Invalid, 4779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 4639 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:56:06,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:56:06,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:56:06,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.394319682959049) internal successors, (2111), 1542 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:06,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2111 transitions. [2021-12-17 16:56:06,881 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2111 transitions. Word has length 113 [2021-12-17 16:56:06,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:06,881 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2111 transitions. [2021-12-17 16:56:06,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:06,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2111 transitions. [2021-12-17 16:56:06,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 16:56:06,882 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:06,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:06,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-12-17 16:56:06,883 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:06,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:06,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1885537261, now seen corresponding path program 1 times [2021-12-17 16:56:06,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:06,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429650554] [2021-12-17 16:56:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:06,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:06,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:06,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429650554] [2021-12-17 16:56:06,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429650554] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:06,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:06,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:06,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599262015] [2021-12-17 16:56:06,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:06,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:06,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:06,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:06,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:06,976 INFO L87 Difference]: Start difference. First operand 1543 states and 2111 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:09,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:09,165 INFO L93 Difference]: Finished difference Result 2832 states and 3935 transitions. [2021-12-17 16:56:09,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:09,165 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-12-17 16:56:09,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:09,168 INFO L225 Difference]: With dead ends: 2832 [2021-12-17 16:56:09,168 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:56:09,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:09,169 INFO L933 BasicCegarLoop]: 1135 mSDtfsCounter, 4827 mSDsluCounter, 4114 mSDsCounter, 0 mSdLazyCounter, 4116 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4827 SdHoareTripleChecker+Valid, 5249 SdHoareTripleChecker+Invalid, 4259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 4116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:09,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4827 Valid, 5249 Invalid, 4259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 4116 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:56:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:56:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:56:09,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.392998678996037) internal successors, (2109), 1542 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2109 transitions. [2021-12-17 16:56:09,378 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2109 transitions. Word has length 113 [2021-12-17 16:56:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:09,378 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2109 transitions. [2021-12-17 16:56:09,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2109 transitions. [2021-12-17 16:56:09,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 16:56:09,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:09,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:09,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-12-17 16:56:09,380 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:09,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:09,380 INFO L85 PathProgramCache]: Analyzing trace with hash 950824379, now seen corresponding path program 1 times [2021-12-17 16:56:09,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:09,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488754818] [2021-12-17 16:56:09,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:09,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:09,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:09,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:09,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488754818] [2021-12-17 16:56:09,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488754818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:09,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:09,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:09,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164396201] [2021-12-17 16:56:09,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:09,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:09,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:09,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:09,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:09,471 INFO L87 Difference]: Start difference. First operand 1543 states and 2109 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:11,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:11,417 INFO L93 Difference]: Finished difference Result 2728 states and 3750 transitions. [2021-12-17 16:56:11,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:11,418 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-12-17 16:56:11,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:11,420 INFO L225 Difference]: With dead ends: 2728 [2021-12-17 16:56:11,420 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:11,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:11,421 INFO L933 BasicCegarLoop]: 893 mSDtfsCounter, 5503 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 3157 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5503 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 3500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 3157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:11,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5503 Valid, 3672 Invalid, 3500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 3157 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:56:11,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:11,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:56:11,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.392338177014531) internal successors, (2108), 1542 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:11,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2108 transitions. [2021-12-17 16:56:11,623 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2108 transitions. Word has length 114 [2021-12-17 16:56:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:11,623 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2108 transitions. [2021-12-17 16:56:11,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2108 transitions. [2021-12-17 16:56:11,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 16:56:11,625 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:11,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:11,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-12-17 16:56:11,625 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:11,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:11,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2051506923, now seen corresponding path program 1 times [2021-12-17 16:56:11,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:11,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752407354] [2021-12-17 16:56:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:11,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:11,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:11,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752407354] [2021-12-17 16:56:11,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752407354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:11,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:11,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:11,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585613124] [2021-12-17 16:56:11,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:11,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:11,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:11,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:11,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:11,720 INFO L87 Difference]: Start difference. First operand 1543 states and 2108 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:13,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:13,651 INFO L93 Difference]: Finished difference Result 2727 states and 3747 transitions. [2021-12-17 16:56:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:13,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-12-17 16:56:13,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:13,654 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:56:13,655 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:13,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:13,655 INFO L933 BasicCegarLoop]: 893 mSDtfsCounter, 3820 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3820 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:13,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3820 Valid, 3672 Invalid, 3375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:56:13,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:13,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:56:13,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.391677675033025) internal successors, (2107), 1542 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2107 transitions. [2021-12-17 16:56:13,875 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2107 transitions. Word has length 114 [2021-12-17 16:56:13,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:13,875 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2107 transitions. [2021-12-17 16:56:13,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:13,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2107 transitions. [2021-12-17 16:56:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:13,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:13,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:13,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-12-17 16:56:13,877 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:13,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:13,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2144503772, now seen corresponding path program 1 times [2021-12-17 16:56:13,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:13,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534738132] [2021-12-17 16:56:13,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:13,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:13,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:13,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:13,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534738132] [2021-12-17 16:56:13,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534738132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:13,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:13,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:13,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388145319] [2021-12-17 16:56:13,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:13,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:13,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:13,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:13,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:13,965 INFO L87 Difference]: Start difference. First operand 1543 states and 2107 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:16,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:16,276 INFO L93 Difference]: Finished difference Result 2828 states and 3922 transitions. [2021-12-17 16:56:16,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:16,276 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:16,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:16,279 INFO L225 Difference]: With dead ends: 2828 [2021-12-17 16:56:16,279 INFO L226 Difference]: Without dead ends: 2650 [2021-12-17 16:56:16,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:16,280 INFO L933 BasicCegarLoop]: 1207 mSDtfsCounter, 4765 mSDsluCounter, 4515 mSDsCounter, 0 mSdLazyCounter, 4463 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4765 SdHoareTripleChecker+Valid, 5722 SdHoareTripleChecker+Invalid, 4604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 4463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:16,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4765 Valid, 5722 Invalid, 4604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 4463 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:56:16,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-17 16:56:16,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-17 16:56:16,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.391017173051519) internal successors, (2106), 1542 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:16,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2106 transitions. [2021-12-17 16:56:16,514 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2106 transitions. Word has length 115 [2021-12-17 16:56:16,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:16,515 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2106 transitions. [2021-12-17 16:56:16,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:16,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2106 transitions. [2021-12-17 16:56:16,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:16,516 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:16,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:16,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-12-17 16:56:16,516 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:16,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:16,517 INFO L85 PathProgramCache]: Analyzing trace with hash 468177209, now seen corresponding path program 1 times [2021-12-17 16:56:16,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:16,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374202268] [2021-12-17 16:56:16,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:16,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:16,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:16,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374202268] [2021-12-17 16:56:16,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374202268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:16,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:16,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:16,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753644625] [2021-12-17 16:56:16,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:16,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:16,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:16,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:16,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:16,633 INFO L87 Difference]: Start difference. First operand 1543 states and 2106 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:18,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:18,905 INFO L93 Difference]: Finished difference Result 2729 states and 3746 transitions. [2021-12-17 16:56:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:18,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:18,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:18,909 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:56:18,909 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:18,910 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:56:18,911 INFO L933 BasicCegarLoop]: 957 mSDtfsCounter, 6291 mSDsluCounter, 3825 mSDsCounter, 0 mSdLazyCounter, 3940 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6291 SdHoareTripleChecker+Valid, 4782 SdHoareTripleChecker+Invalid, 4293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 3940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:18,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6291 Valid, 4782 Invalid, 4293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 3940 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:56:18,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:19,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:56:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.3903566710700133) internal successors, (2105), 1542 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:19,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2105 transitions. [2021-12-17 16:56:19,152 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2105 transitions. Word has length 115 [2021-12-17 16:56:19,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:19,152 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2105 transitions. [2021-12-17 16:56:19,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:19,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2105 transitions. [2021-12-17 16:56:19,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:19,153 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:19,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:19,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-12-17 16:56:19,153 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:19,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:19,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1116871285, now seen corresponding path program 1 times [2021-12-17 16:56:19,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:19,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405886935] [2021-12-17 16:56:19,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:19,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:19,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:19,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405886935] [2021-12-17 16:56:19,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405886935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:19,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:19,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:19,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652780459] [2021-12-17 16:56:19,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:19,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:19,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:19,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:19,236 INFO L87 Difference]: Start difference. First operand 1543 states and 2105 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:21,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:21,289 INFO L93 Difference]: Finished difference Result 2729 states and 3745 transitions. [2021-12-17 16:56:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:21,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:21,292 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:56:21,292 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:21,293 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:56:21,293 INFO L933 BasicCegarLoop]: 970 mSDtfsCounter, 5334 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5334 SdHoareTripleChecker+Valid, 3905 SdHoareTripleChecker+Invalid, 3661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:21,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5334 Valid, 3905 Invalid, 3661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:56:21,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:21,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:56:21,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.3896961690885072) internal successors, (2104), 1542 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2104 transitions. [2021-12-17 16:56:21,524 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2104 transitions. Word has length 115 [2021-12-17 16:56:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:21,524 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2104 transitions. [2021-12-17 16:56:21,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2104 transitions. [2021-12-17 16:56:21,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:21,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:21,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:21,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-12-17 16:56:21,526 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:21,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:21,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1229723649, now seen corresponding path program 1 times [2021-12-17 16:56:21,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:21,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259128750] [2021-12-17 16:56:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:21,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:21,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:21,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259128750] [2021-12-17 16:56:21,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259128750] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:21,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:21,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:21,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478000218] [2021-12-17 16:56:21,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:21,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:21,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:21,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:21,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:21,609 INFO L87 Difference]: Start difference. First operand 1543 states and 2104 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:23,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:23,681 INFO L93 Difference]: Finished difference Result 2727 states and 3741 transitions. [2021-12-17 16:56:23,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:23,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:23,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:23,684 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:56:23,684 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:23,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:23,685 INFO L933 BasicCegarLoop]: 952 mSDtfsCounter, 6802 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 3340 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6802 SdHoareTripleChecker+Valid, 3913 SdHoareTripleChecker+Invalid, 3795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 3340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:23,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6802 Valid, 3913 Invalid, 3795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 3340 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:56:23,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:23,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:56:23,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.3890356671070012) internal successors, (2103), 1542 states have internal predecessors, (2103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2103 transitions. [2021-12-17 16:56:23,911 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2103 transitions. Word has length 115 [2021-12-17 16:56:23,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:23,912 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2103 transitions. [2021-12-17 16:56:23,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:23,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2103 transitions. [2021-12-17 16:56:23,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:23,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:23,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:23,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-12-17 16:56:23,913 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:23,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:23,914 INFO L85 PathProgramCache]: Analyzing trace with hash -2004216103, now seen corresponding path program 1 times [2021-12-17 16:56:23,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:23,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379193800] [2021-12-17 16:56:23,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:23,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:23,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:23,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:23,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379193800] [2021-12-17 16:56:23,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379193800] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:23,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:23,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:23,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946758313] [2021-12-17 16:56:23,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:23,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:23,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:23,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:23,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:23,996 INFO L87 Difference]: Start difference. First operand 1543 states and 2103 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:26,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:26,058 INFO L93 Difference]: Finished difference Result 2729 states and 3742 transitions. [2021-12-17 16:56:26,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:26,059 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:26,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:26,061 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:56:26,061 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:26,062 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:56:26,062 INFO L933 BasicCegarLoop]: 970 mSDtfsCounter, 5326 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 3310 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5326 SdHoareTripleChecker+Valid, 3905 SdHoareTripleChecker+Invalid, 3649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:26,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5326 Valid, 3905 Invalid, 3649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 3310 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:56:26,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:26,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:56:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.3883751651254954) internal successors, (2102), 1542 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:26,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2102 transitions. [2021-12-17 16:56:26,322 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2102 transitions. Word has length 115 [2021-12-17 16:56:26,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:26,323 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2102 transitions. [2021-12-17 16:56:26,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:26,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2102 transitions. [2021-12-17 16:56:26,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:26,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:26,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:26,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-12-17 16:56:26,324 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:26,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:26,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1280877255, now seen corresponding path program 1 times [2021-12-17 16:56:26,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:26,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661753707] [2021-12-17 16:56:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:26,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:26,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:26,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:26,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661753707] [2021-12-17 16:56:26,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661753707] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:26,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:26,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:26,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773941746] [2021-12-17 16:56:26,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:26,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:26,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:26,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:26,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:26,420 INFO L87 Difference]: Start difference. First operand 1543 states and 2102 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:28,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:28,723 INFO L93 Difference]: Finished difference Result 2727 states and 3738 transitions. [2021-12-17 16:56:28,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:28,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:28,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:28,726 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:56:28,726 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:28,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:28,727 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 6262 mSDsluCounter, 3859 mSDsCounter, 0 mSdLazyCounter, 3915 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6262 SdHoareTripleChecker+Valid, 4827 SdHoareTripleChecker+Invalid, 4268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 3915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:28,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6262 Valid, 4827 Invalid, 4268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 3915 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:56:28,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-17 16:56:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.3877146631439894) internal successors, (2101), 1542 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2101 transitions. [2021-12-17 16:56:28,953 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2101 transitions. Word has length 115 [2021-12-17 16:56:28,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:28,953 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2101 transitions. [2021-12-17 16:56:28,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:28,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2101 transitions. [2021-12-17 16:56:28,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:28,955 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:28,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:28,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-12-17 16:56:28,955 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:28,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:28,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1026700327, now seen corresponding path program 1 times [2021-12-17 16:56:28,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:28,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834107563] [2021-12-17 16:56:28,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:28,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:29,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:29,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:29,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834107563] [2021-12-17 16:56:29,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834107563] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:29,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:29,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:56:29,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938937704] [2021-12-17 16:56:29,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:29,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:56:29,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:29,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:56:29,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:56:29,121 INFO L87 Difference]: Start difference. First operand 1543 states and 2101 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:32,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:32,650 INFO L93 Difference]: Finished difference Result 3520 states and 4912 transitions. [2021-12-17 16:56:32,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 16:56:32,650 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:32,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:32,671 INFO L225 Difference]: With dead ends: 3520 [2021-12-17 16:56:32,671 INFO L226 Difference]: Without dead ends: 3354 [2021-12-17 16:56:32,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 16:56:32,672 INFO L933 BasicCegarLoop]: 962 mSDtfsCounter, 9228 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 3589 mSolverCounterSat, 1377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9228 SdHoareTripleChecker+Valid, 4219 SdHoareTripleChecker+Invalid, 4966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1377 IncrementalHoareTripleChecker+Valid, 3589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:32,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9228 Valid, 4219 Invalid, 4966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1377 Valid, 3589 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 16:56:32,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2021-12-17 16:56:32,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 1547. [2021-12-17 16:56:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.3866930171277998) internal successors, (2105), 1546 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:32,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2105 transitions. [2021-12-17 16:56:32,928 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2105 transitions. Word has length 115 [2021-12-17 16:56:32,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:32,928 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2105 transitions. [2021-12-17 16:56:32,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:32,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2105 transitions. [2021-12-17 16:56:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:32,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:32,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:32,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-12-17 16:56:32,930 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:32,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:32,930 INFO L85 PathProgramCache]: Analyzing trace with hash 111687979, now seen corresponding path program 1 times [2021-12-17 16:56:32,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:32,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401854261] [2021-12-17 16:56:32,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:32,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:33,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:33,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:33,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401854261] [2021-12-17 16:56:33,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401854261] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:33,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:33,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:33,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033053200] [2021-12-17 16:56:33,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:33,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:33,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:33,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:33,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:33,027 INFO L87 Difference]: Start difference. First operand 1547 states and 2105 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:35,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:35,454 INFO L93 Difference]: Finished difference Result 2826 states and 3911 transitions. [2021-12-17 16:56:35,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:35,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:35,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:35,457 INFO L225 Difference]: With dead ends: 2826 [2021-12-17 16:56:35,457 INFO L226 Difference]: Without dead ends: 2654 [2021-12-17 16:56:35,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:35,458 INFO L933 BasicCegarLoop]: 1193 mSDtfsCounter, 4667 mSDsluCounter, 4778 mSDsCounter, 0 mSdLazyCounter, 4579 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4667 SdHoareTripleChecker+Valid, 5971 SdHoareTripleChecker+Invalid, 4719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 4579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:35,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4667 Valid, 5971 Invalid, 4719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 4579 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:56:35,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2021-12-17 16:56:35,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 1547. [2021-12-17 16:56:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.386034255599473) internal successors, (2104), 1546 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2104 transitions. [2021-12-17 16:56:35,707 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2104 transitions. Word has length 115 [2021-12-17 16:56:35,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:35,707 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2104 transitions. [2021-12-17 16:56:35,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:35,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2104 transitions. [2021-12-17 16:56:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:35,708 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:35,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:35,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-12-17 16:56:35,709 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:35,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:35,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1221636080, now seen corresponding path program 1 times [2021-12-17 16:56:35,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:35,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109689685] [2021-12-17 16:56:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:35,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:35,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:35,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:35,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109689685] [2021-12-17 16:56:35,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109689685] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:35,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:35,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:56:35,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131358546] [2021-12-17 16:56:35,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:35,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:56:35,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:35,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:56:35,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:56:35,887 INFO L87 Difference]: Start difference. First operand 1547 states and 2104 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:39,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:39,547 INFO L93 Difference]: Finished difference Result 3524 states and 4914 transitions. [2021-12-17 16:56:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 16:56:39,547 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:39,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:39,550 INFO L225 Difference]: With dead ends: 3524 [2021-12-17 16:56:39,550 INFO L226 Difference]: Without dead ends: 3356 [2021-12-17 16:56:39,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 16:56:39,551 INFO L933 BasicCegarLoop]: 970 mSDtfsCounter, 10997 mSDsluCounter, 3280 mSDsCounter, 0 mSdLazyCounter, 3582 mSolverCounterSat, 1650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10997 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 5232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1650 IncrementalHoareTripleChecker+Valid, 3582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:39,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10997 Valid, 4250 Invalid, 5232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1650 Valid, 3582 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 16:56:39,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2021-12-17 16:56:39,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 1551. [2021-12-17 16:56:39,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3850197109067017) internal successors, (2108), 1550 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:39,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2108 transitions. [2021-12-17 16:56:39,800 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2108 transitions. Word has length 115 [2021-12-17 16:56:39,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:39,800 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2108 transitions. [2021-12-17 16:56:39,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:39,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2108 transitions. [2021-12-17 16:56:39,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:39,802 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:39,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:39,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-12-17 16:56:39,803 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:39,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:39,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1202685921, now seen corresponding path program 1 times [2021-12-17 16:56:39,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:39,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909952760] [2021-12-17 16:56:39,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:39,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:39,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:39,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:39,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909952760] [2021-12-17 16:56:39,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909952760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:39,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:39,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:39,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293595723] [2021-12-17 16:56:39,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:39,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:39,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:39,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:39,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:39,926 INFO L87 Difference]: Start difference. First operand 1551 states and 2108 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:42,268 INFO L93 Difference]: Finished difference Result 2727 states and 3734 transitions. [2021-12-17 16:56:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:42,272 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:56:42,272 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:42,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:42,273 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 6364 mSDsluCounter, 3669 mSDsCounter, 0 mSdLazyCounter, 3722 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6364 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 4076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 3722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:42,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6364 Valid, 4574 Invalid, 4076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 3722 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:56:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:42,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1551. [2021-12-17 16:56:42,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3843626806833114) internal successors, (2107), 1550 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:42,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2107 transitions. [2021-12-17 16:56:42,548 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2107 transitions. Word has length 115 [2021-12-17 16:56:42,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:42,548 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2107 transitions. [2021-12-17 16:56:42,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:42,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2107 transitions. [2021-12-17 16:56:42,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:42,550 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:42,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:42,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-12-17 16:56:42,550 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:42,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:42,550 INFO L85 PathProgramCache]: Analyzing trace with hash -411952931, now seen corresponding path program 1 times [2021-12-17 16:56:42,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:42,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939924146] [2021-12-17 16:56:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:42,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:42,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:42,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939924146] [2021-12-17 16:56:42,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939924146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:42,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:42,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:42,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062938784] [2021-12-17 16:56:42,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:42,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:42,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:42,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:42,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:42,656 INFO L87 Difference]: Start difference. First operand 1551 states and 2107 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:44,870 INFO L93 Difference]: Finished difference Result 2845 states and 3927 transitions. [2021-12-17 16:56:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:44,870 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:44,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:44,873 INFO L225 Difference]: With dead ends: 2845 [2021-12-17 16:56:44,873 INFO L226 Difference]: Without dead ends: 2662 [2021-12-17 16:56:44,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:44,874 INFO L933 BasicCegarLoop]: 1207 mSDtfsCounter, 6082 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 3793 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6082 SdHoareTripleChecker+Valid, 4889 SdHoareTripleChecker+Invalid, 3969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 3793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:44,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6082 Valid, 4889 Invalid, 3969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 3793 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:56:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2021-12-17 16:56:45,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 1551. [2021-12-17 16:56:45,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3837056504599212) internal successors, (2106), 1550 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:45,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2106 transitions. [2021-12-17 16:56:45,131 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2106 transitions. Word has length 115 [2021-12-17 16:56:45,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:45,131 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2106 transitions. [2021-12-17 16:56:45,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:45,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2106 transitions. [2021-12-17 16:56:45,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:45,133 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:45,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:45,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-12-17 16:56:45,133 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:45,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1970817263, now seen corresponding path program 1 times [2021-12-17 16:56:45,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:45,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018894278] [2021-12-17 16:56:45,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:45,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:45,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:45,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018894278] [2021-12-17 16:56:45,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018894278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:45,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:45,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:45,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886820725] [2021-12-17 16:56:45,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:45,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:45,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:45,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:45,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:45,224 INFO L87 Difference]: Start difference. First operand 1551 states and 2106 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:47,540 INFO L93 Difference]: Finished difference Result 2732 states and 3737 transitions. [2021-12-17 16:56:47,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:47,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:47,543 INFO L225 Difference]: With dead ends: 2732 [2021-12-17 16:56:47,543 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:47,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:47,544 INFO L933 BasicCegarLoop]: 919 mSDtfsCounter, 6340 mSDsluCounter, 3706 mSDsCounter, 0 mSdLazyCounter, 3733 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6340 SdHoareTripleChecker+Valid, 4625 SdHoareTripleChecker+Invalid, 4086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 3733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:47,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6340 Valid, 4625 Invalid, 4086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 3733 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:56:47,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:47,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1551. [2021-12-17 16:56:47,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3830486202365309) internal successors, (2105), 1550 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:47,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2105 transitions. [2021-12-17 16:56:47,795 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2105 transitions. Word has length 115 [2021-12-17 16:56:47,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:47,795 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2105 transitions. [2021-12-17 16:56:47,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:47,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2105 transitions. [2021-12-17 16:56:47,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:47,796 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:47,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:47,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-12-17 16:56:47,797 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:47,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:47,797 INFO L85 PathProgramCache]: Analyzing trace with hash 391906930, now seen corresponding path program 1 times [2021-12-17 16:56:47,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:47,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089779644] [2021-12-17 16:56:47,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:47,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:47,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:47,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:47,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089779644] [2021-12-17 16:56:47,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089779644] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:47,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:47,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:47,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031526428] [2021-12-17 16:56:47,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:47,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:47,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:47,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:47,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:47,905 INFO L87 Difference]: Start difference. First operand 1551 states and 2105 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:50,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:50,320 INFO L93 Difference]: Finished difference Result 2840 states and 3918 transitions. [2021-12-17 16:56:50,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:50,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:50,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:50,323 INFO L225 Difference]: With dead ends: 2840 [2021-12-17 16:56:50,324 INFO L226 Difference]: Without dead ends: 2662 [2021-12-17 16:56:50,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:50,324 INFO L933 BasicCegarLoop]: 1083 mSDtfsCounter, 6369 mSDsluCounter, 4527 mSDsCounter, 0 mSdLazyCounter, 4279 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6369 SdHoareTripleChecker+Valid, 5610 SdHoareTripleChecker+Invalid, 4456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:50,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6369 Valid, 5610 Invalid, 4456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4279 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:56:50,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2021-12-17 16:56:50,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 1551. [2021-12-17 16:56:50,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3823915900131407) internal successors, (2104), 1550 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:50,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2104 transitions. [2021-12-17 16:56:50,590 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2104 transitions. Word has length 115 [2021-12-17 16:56:50,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:50,590 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2104 transitions. [2021-12-17 16:56:50,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:50,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2104 transitions. [2021-12-17 16:56:50,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:50,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:50,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:50,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-12-17 16:56:50,592 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:50,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:50,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1814958715, now seen corresponding path program 1 times [2021-12-17 16:56:50,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:50,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619485003] [2021-12-17 16:56:50,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:50,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:50,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:50,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619485003] [2021-12-17 16:56:50,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619485003] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:50,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:50,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:50,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352333434] [2021-12-17 16:56:50,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:50,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:50,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:50,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:50,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:50,686 INFO L87 Difference]: Start difference. First operand 1551 states and 2104 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:53,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:53,046 INFO L93 Difference]: Finished difference Result 2729 states and 3732 transitions. [2021-12-17 16:56:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:53,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:53,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:53,049 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:56:53,049 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:53,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:53,050 INFO L933 BasicCegarLoop]: 927 mSDtfsCounter, 6314 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 3749 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 4661 SdHoareTripleChecker+Invalid, 4101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 3749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:53,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6314 Valid, 4661 Invalid, 4101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 3749 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:56:53,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:53,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1551. [2021-12-17 16:56:53,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3817345597897503) internal successors, (2103), 1550 states have internal predecessors, (2103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:53,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2103 transitions. [2021-12-17 16:56:53,312 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2103 transitions. Word has length 115 [2021-12-17 16:56:53,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:53,313 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2103 transitions. [2021-12-17 16:56:53,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:53,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2103 transitions. [2021-12-17 16:56:53,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:53,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:53,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:53,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-12-17 16:56:53,314 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:53,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:53,315 INFO L85 PathProgramCache]: Analyzing trace with hash -256200210, now seen corresponding path program 1 times [2021-12-17 16:56:53,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:53,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643327206] [2021-12-17 16:56:53,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:53,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:53,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:53,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643327206] [2021-12-17 16:56:53,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643327206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:53,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:53,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:53,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026254584] [2021-12-17 16:56:53,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:53,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:53,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:53,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:53,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:53,407 INFO L87 Difference]: Start difference. First operand 1551 states and 2103 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:55,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:55,761 INFO L93 Difference]: Finished difference Result 2729 states and 3731 transitions. [2021-12-17 16:56:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:55,761 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:55,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:55,764 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:56:55,764 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:56:55,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:55,765 INFO L933 BasicCegarLoop]: 927 mSDtfsCounter, 6310 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 3745 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6310 SdHoareTripleChecker+Valid, 4661 SdHoareTripleChecker+Invalid, 4097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 3745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:55,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6310 Valid, 4661 Invalid, 4097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 3745 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:56:55,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:56:56,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1551. [2021-12-17 16:56:56,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.38107752956636) internal successors, (2102), 1550 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2102 transitions. [2021-12-17 16:56:56,049 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2102 transitions. Word has length 115 [2021-12-17 16:56:56,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:56,049 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2102 transitions. [2021-12-17 16:56:56,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:56,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2102 transitions. [2021-12-17 16:56:56,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:56,051 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:56,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:56,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-12-17 16:56:56,052 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:56,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:56,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1419501756, now seen corresponding path program 1 times [2021-12-17 16:56:56,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:56,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059567021] [2021-12-17 16:56:56,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:56,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:56,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:56,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:56,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059567021] [2021-12-17 16:56:56,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059567021] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:56,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:56,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:56,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257763152] [2021-12-17 16:56:56,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:56,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:56,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:56,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:56,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:56,176 INFO L87 Difference]: Start difference. First operand 1551 states and 2102 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:58,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:56:58,557 INFO L93 Difference]: Finished difference Result 2840 states and 3914 transitions. [2021-12-17 16:56:58,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:56:58,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:56:58,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:56:58,560 INFO L225 Difference]: With dead ends: 2840 [2021-12-17 16:56:58,560 INFO L226 Difference]: Without dead ends: 2662 [2021-12-17 16:56:58,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:56:58,561 INFO L933 BasicCegarLoop]: 1207 mSDtfsCounter, 4613 mSDsluCounter, 4221 mSDsCounter, 0 mSdLazyCounter, 4166 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4613 SdHoareTripleChecker+Valid, 5428 SdHoareTripleChecker+Invalid, 4306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 4166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:56:58,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4613 Valid, 5428 Invalid, 4306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 4166 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:56:58,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2021-12-17 16:56:58,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 1551. [2021-12-17 16:56:58,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3804204993429698) internal successors, (2101), 1550 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2101 transitions. [2021-12-17 16:56:58,833 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2101 transitions. Word has length 115 [2021-12-17 16:56:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:56:58,834 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2101 transitions. [2021-12-17 16:56:58,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:56:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2101 transitions. [2021-12-17 16:56:58,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:56:58,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:56:58,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:56:58,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-12-17 16:56:58,835 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:56:58,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:56:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash 392493866, now seen corresponding path program 1 times [2021-12-17 16:56:58,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:56:58,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317463511] [2021-12-17 16:56:58,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:56:58,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:56:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:56:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:56:58,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:56:58,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317463511] [2021-12-17 16:56:58,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317463511] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:56:58,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:56:58,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:56:58,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816490908] [2021-12-17 16:56:58,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:56:58,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:56:58,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:56:58,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:56:58,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:56:58,925 INFO L87 Difference]: Start difference. First operand 1551 states and 2101 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:01,142 INFO L93 Difference]: Finished difference Result 2729 states and 3729 transitions. [2021-12-17 16:57:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:01,142 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:01,145 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:57:01,145 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:01,146 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:57:01,146 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 4981 mSDsluCounter, 3187 mSDsCounter, 0 mSdLazyCounter, 3529 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 4241 SdHoareTripleChecker+Invalid, 3857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 3529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:01,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4981 Valid, 4241 Invalid, 3857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 3529 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:57:01,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:01,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1551. [2021-12-17 16:57:01,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3797634691195795) internal successors, (2100), 1550 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:01,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2100 transitions. [2021-12-17 16:57:01,441 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2100 transitions. Word has length 115 [2021-12-17 16:57:01,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:01,441 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2100 transitions. [2021-12-17 16:57:01,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2100 transitions. [2021-12-17 16:57:01,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:01,442 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:01,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:01,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-12-17 16:57:01,442 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:01,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:01,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1072861829, now seen corresponding path program 1 times [2021-12-17 16:57:01,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:01,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731499328] [2021-12-17 16:57:01,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:01,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:01,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:01,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:01,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731499328] [2021-12-17 16:57:01,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731499328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:01,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:01,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:57:01,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45095816] [2021-12-17 16:57:01,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:01,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:57:01,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:01,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:57:01,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:57:01,584 INFO L87 Difference]: Start difference. First operand 1551 states and 2100 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:05,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:05,495 INFO L93 Difference]: Finished difference Result 3524 states and 4904 transitions. [2021-12-17 16:57:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 16:57:05,495 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:05,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:05,498 INFO L225 Difference]: With dead ends: 3524 [2021-12-17 16:57:05,498 INFO L226 Difference]: Without dead ends: 3356 [2021-12-17 16:57:05,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 16:57:05,499 INFO L933 BasicCegarLoop]: 998 mSDtfsCounter, 8983 mSDsluCounter, 4296 mSDsCounter, 0 mSdLazyCounter, 4480 mSolverCounterSat, 1342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8983 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 5822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1342 IncrementalHoareTripleChecker+Valid, 4480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:05,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8983 Valid, 5294 Invalid, 5822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1342 Valid, 4480 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 16:57:05,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2021-12-17 16:57:05,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 1555. [2021-12-17 16:57:05,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3787680209698558) internal successors, (2104), 1554 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:05,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2104 transitions. [2021-12-17 16:57:05,781 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2104 transitions. Word has length 115 [2021-12-17 16:57:05,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:05,781 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2104 transitions. [2021-12-17 16:57:05,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:05,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2104 transitions. [2021-12-17 16:57:05,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:05,783 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:05,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:05,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-12-17 16:57:05,783 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:05,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:05,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1457153490, now seen corresponding path program 1 times [2021-12-17 16:57:05,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:05,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048414156] [2021-12-17 16:57:05,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:05,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:05,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:05,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048414156] [2021-12-17 16:57:05,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048414156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:05,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:05,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:05,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658439349] [2021-12-17 16:57:05,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:05,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:05,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:05,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:05,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:05,884 INFO L87 Difference]: Start difference. First operand 1555 states and 2104 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:08,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:08,323 INFO L93 Difference]: Finished difference Result 2848 states and 3919 transitions. [2021-12-17 16:57:08,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:08,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:08,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:08,326 INFO L225 Difference]: With dead ends: 2848 [2021-12-17 16:57:08,326 INFO L226 Difference]: Without dead ends: 2670 [2021-12-17 16:57:08,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:08,327 INFO L933 BasicCegarLoop]: 1207 mSDtfsCounter, 4721 mSDsluCounter, 4511 mSDsCounter, 0 mSdLazyCounter, 4342 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4721 SdHoareTripleChecker+Valid, 5718 SdHoareTripleChecker+Invalid, 4483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 4342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:08,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4721 Valid, 5718 Invalid, 4483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 4342 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:57:08,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2021-12-17 16:57:08,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 1555. [2021-12-17 16:57:08,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3781127129750983) internal successors, (2103), 1554 states have internal predecessors, (2103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:08,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2103 transitions. [2021-12-17 16:57:08,614 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2103 transitions. Word has length 115 [2021-12-17 16:57:08,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:08,614 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2103 transitions. [2021-12-17 16:57:08,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:08,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2103 transitions. [2021-12-17 16:57:08,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:08,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:08,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:08,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-12-17 16:57:08,616 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:08,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash -749712155, now seen corresponding path program 1 times [2021-12-17 16:57:08,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:08,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317658654] [2021-12-17 16:57:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:08,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:08,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:08,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317658654] [2021-12-17 16:57:08,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317658654] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:08,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:08,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:08,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956740025] [2021-12-17 16:57:08,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:08,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:08,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:08,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:08,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:08,734 INFO L87 Difference]: Start difference. First operand 1555 states and 2103 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:11,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:11,265 INFO L93 Difference]: Finished difference Result 2729 states and 3725 transitions. [2021-12-17 16:57:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:11,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:11,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:11,268 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:57:11,268 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:11,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:11,268 INFO L933 BasicCegarLoop]: 999 mSDtfsCounter, 6161 mSDsluCounter, 3951 mSDsCounter, 0 mSdLazyCounter, 3930 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6161 SdHoareTripleChecker+Valid, 4950 SdHoareTripleChecker+Invalid, 4278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 3930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:11,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6161 Valid, 4950 Invalid, 4278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 3930 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:57:11,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:11,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1555. [2021-12-17 16:57:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3774574049803407) internal successors, (2102), 1554 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2102 transitions. [2021-12-17 16:57:11,560 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2102 transitions. Word has length 115 [2021-12-17 16:57:11,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:11,561 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2102 transitions. [2021-12-17 16:57:11,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:11,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2102 transitions. [2021-12-17 16:57:11,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:11,562 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:11,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:11,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-12-17 16:57:11,563 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:11,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:11,563 INFO L85 PathProgramCache]: Analyzing trace with hash -101018079, now seen corresponding path program 1 times [2021-12-17 16:57:11,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:11,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329294421] [2021-12-17 16:57:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:11,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:11,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:11,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:11,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329294421] [2021-12-17 16:57:11,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329294421] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:11,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:11,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:11,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460157872] [2021-12-17 16:57:11,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:11,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:11,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:11,644 INFO L87 Difference]: Start difference. First operand 1555 states and 2102 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:13,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:13,836 INFO L93 Difference]: Finished difference Result 2729 states and 3724 transitions. [2021-12-17 16:57:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:13,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:13,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:13,840 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:57:13,840 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:13,841 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:57:13,841 INFO L933 BasicCegarLoop]: 1011 mSDtfsCounter, 5159 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 3330 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5159 SdHoareTripleChecker+Valid, 4068 SdHoareTripleChecker+Invalid, 3658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 3330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:13,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5159 Valid, 4068 Invalid, 3658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 3330 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:57:13,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1555. [2021-12-17 16:57:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3768020969855832) internal successors, (2101), 1554 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:14,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2101 transitions. [2021-12-17 16:57:14,163 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2101 transitions. Word has length 115 [2021-12-17 16:57:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:14,163 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2101 transitions. [2021-12-17 16:57:14,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2101 transitions. [2021-12-17 16:57:14,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:14,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:14,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:14,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-12-17 16:57:14,164 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:14,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:14,165 INFO L85 PathProgramCache]: Analyzing trace with hash -718530888, now seen corresponding path program 1 times [2021-12-17 16:57:14,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:14,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372122099] [2021-12-17 16:57:14,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:14,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:14,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:14,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372122099] [2021-12-17 16:57:14,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372122099] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:14,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:14,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:14,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755415506] [2021-12-17 16:57:14,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:14,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:14,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:14,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:14,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:14,266 INFO L87 Difference]: Start difference. First operand 1555 states and 2101 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:16,677 INFO L93 Difference]: Finished difference Result 2727 states and 3720 transitions. [2021-12-17 16:57:16,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:16,678 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:16,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:16,680 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:57:16,680 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:16,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:16,681 INFO L933 BasicCegarLoop]: 944 mSDtfsCounter, 6257 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 3737 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6257 SdHoareTripleChecker+Valid, 4730 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 3737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:16,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6257 Valid, 4730 Invalid, 4087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 3737 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:57:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:16,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1555. [2021-12-17 16:57:16,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.375491480996068) internal successors, (2099), 1554 states have internal predecessors, (2099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:16,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2099 transitions. [2021-12-17 16:57:16,975 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2099 transitions. Word has length 115 [2021-12-17 16:57:16,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:16,975 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2099 transitions. [2021-12-17 16:57:16,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:16,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2099 transitions. [2021-12-17 16:57:16,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:16,976 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:16,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:16,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-12-17 16:57:16,976 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:16,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:16,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1204438218, now seen corresponding path program 1 times [2021-12-17 16:57:16,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:16,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003715298] [2021-12-17 16:57:16,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:16,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:17,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:17,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003715298] [2021-12-17 16:57:17,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003715298] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:17,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:17,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:17,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835276061] [2021-12-17 16:57:17,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:17,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:17,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:17,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:17,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:17,072 INFO L87 Difference]: Start difference. First operand 1555 states and 2099 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:19,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:19,627 INFO L93 Difference]: Finished difference Result 2852 states and 3918 transitions. [2021-12-17 16:57:19,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:19,627 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:19,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:19,630 INFO L225 Difference]: With dead ends: 2852 [2021-12-17 16:57:19,630 INFO L226 Difference]: Without dead ends: 2670 [2021-12-17 16:57:19,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:19,631 INFO L933 BasicCegarLoop]: 1201 mSDtfsCounter, 5929 mSDsluCounter, 4776 mSDsCounter, 0 mSdLazyCounter, 4497 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5929 SdHoareTripleChecker+Valid, 5977 SdHoareTripleChecker+Invalid, 4672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 4497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:19,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5929 Valid, 5977 Invalid, 4672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 4497 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:57:19,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2021-12-17 16:57:19,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 1555. [2021-12-17 16:57:19,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.374180865006553) internal successors, (2097), 1554 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:19,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2097 transitions. [2021-12-17 16:57:19,949 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2097 transitions. Word has length 115 [2021-12-17 16:57:19,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:19,949 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2097 transitions. [2021-12-17 16:57:19,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:19,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2097 transitions. [2021-12-17 16:57:19,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:19,950 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:19,950 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:19,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-12-17 16:57:19,951 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:19,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:19,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1125048219, now seen corresponding path program 1 times [2021-12-17 16:57:19,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:19,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330052695] [2021-12-17 16:57:19,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:19,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:20,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:20,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330052695] [2021-12-17 16:57:20,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330052695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:20,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:20,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:20,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068641368] [2021-12-17 16:57:20,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:20,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:20,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:20,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:20,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:20,040 INFO L87 Difference]: Start difference. First operand 1555 states and 2097 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:22,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:22,477 INFO L93 Difference]: Finished difference Result 2731 states and 3720 transitions. [2021-12-17 16:57:22,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:22,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:22,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:22,480 INFO L225 Difference]: With dead ends: 2731 [2021-12-17 16:57:22,480 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:22,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:22,481 INFO L933 BasicCegarLoop]: 950 mSDtfsCounter, 6239 mSDsluCounter, 3803 mSDsCounter, 0 mSdLazyCounter, 3744 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6239 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 4093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 3744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:22,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6239 Valid, 4753 Invalid, 4093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 3744 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:57:22,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:22,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1555. [2021-12-17 16:57:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.372870249017038) internal successors, (2095), 1554 states have internal predecessors, (2095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2095 transitions. [2021-12-17 16:57:22,781 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2095 transitions. Word has length 115 [2021-12-17 16:57:22,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:22,782 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2095 transitions. [2021-12-17 16:57:22,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:22,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2095 transitions. [2021-12-17 16:57:22,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:22,783 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:22,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:22,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-12-17 16:57:22,783 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:22,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:22,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1904820616, now seen corresponding path program 1 times [2021-12-17 16:57:22,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:22,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554764793] [2021-12-17 16:57:22,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:22,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:22,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:22,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554764793] [2021-12-17 16:57:22,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554764793] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:22,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:22,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:22,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821432931] [2021-12-17 16:57:22,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:22,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:22,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:22,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:22,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:22,863 INFO L87 Difference]: Start difference. First operand 1555 states and 2095 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:25,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:25,109 INFO L93 Difference]: Finished difference Result 2566 states and 3468 transitions. [2021-12-17 16:57:25,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:25,110 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:25,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:25,113 INFO L225 Difference]: With dead ends: 2566 [2021-12-17 16:57:25,113 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:25,113 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:57:25,113 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 4127 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 3320 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4127 SdHoareTripleChecker+Valid, 4091 SdHoareTripleChecker+Invalid, 3600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 3320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:25,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4127 Valid, 4091 Invalid, 3600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 3320 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:57:25,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:25,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1555. [2021-12-17 16:57:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.371559633027523) internal successors, (2093), 1554 states have internal predecessors, (2093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2093 transitions. [2021-12-17 16:57:25,429 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2093 transitions. Word has length 115 [2021-12-17 16:57:25,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:25,429 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2093 transitions. [2021-12-17 16:57:25,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:25,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2093 transitions. [2021-12-17 16:57:25,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:25,431 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:25,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:25,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-12-17 16:57:25,431 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:25,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:25,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1101081512, now seen corresponding path program 1 times [2021-12-17 16:57:25,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:25,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172457105] [2021-12-17 16:57:25,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:25,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:25,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:25,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:25,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172457105] [2021-12-17 16:57:25,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172457105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:25,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:25,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:25,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103086996] [2021-12-17 16:57:25,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:25,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:25,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:25,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:25,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:25,529 INFO L87 Difference]: Start difference. First operand 1555 states and 2093 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:27,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:27,965 INFO L93 Difference]: Finished difference Result 2566 states and 3464 transitions. [2021-12-17 16:57:27,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:27,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:27,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:27,968 INFO L225 Difference]: With dead ends: 2566 [2021-12-17 16:57:27,968 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:27,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:27,969 INFO L933 BasicCegarLoop]: 950 mSDtfsCounter, 6233 mSDsluCounter, 3800 mSDsCounter, 0 mSdLazyCounter, 3729 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6233 SdHoareTripleChecker+Valid, 4750 SdHoareTripleChecker+Invalid, 4078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 3729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:27,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6233 Valid, 4750 Invalid, 4078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 3729 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:57:27,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:28,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1555. [2021-12-17 16:57:28,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.370249017038008) internal successors, (2091), 1554 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:28,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2091 transitions. [2021-12-17 16:57:28,272 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2091 transitions. Word has length 115 [2021-12-17 16:57:28,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:28,272 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2091 transitions. [2021-12-17 16:57:28,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:28,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2091 transitions. [2021-12-17 16:57:28,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:28,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:28,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:28,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-12-17 16:57:28,274 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:28,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:28,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1281688682, now seen corresponding path program 1 times [2021-12-17 16:57:28,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:28,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672366685] [2021-12-17 16:57:28,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:28,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:28,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:28,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:28,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672366685] [2021-12-17 16:57:28,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672366685] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:28,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:28,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:28,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671921848] [2021-12-17 16:57:28,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:28,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:28,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:28,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:28,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:28,358 INFO L87 Difference]: Start difference. First operand 1555 states and 2091 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:30,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:30,710 INFO L93 Difference]: Finished difference Result 2687 states and 3652 transitions. [2021-12-17 16:57:30,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:30,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:30,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:30,713 INFO L225 Difference]: With dead ends: 2687 [2021-12-17 16:57:30,713 INFO L226 Difference]: Without dead ends: 2670 [2021-12-17 16:57:30,714 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:57:30,714 INFO L933 BasicCegarLoop]: 1214 mSDtfsCounter, 4735 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 3761 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 4978 SdHoareTripleChecker+Invalid, 3920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 3761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:30,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4735 Valid, 4978 Invalid, 3920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 3761 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:57:30,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2021-12-17 16:57:31,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 1555. [2021-12-17 16:57:31,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3689384010484928) internal successors, (2089), 1554 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2089 transitions. [2021-12-17 16:57:31,016 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2089 transitions. Word has length 115 [2021-12-17 16:57:31,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:31,016 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2089 transitions. [2021-12-17 16:57:31,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:31,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2089 transitions. [2021-12-17 16:57:31,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:31,017 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:31,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:31,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-12-17 16:57:31,018 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:31,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:31,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1611160572, now seen corresponding path program 1 times [2021-12-17 16:57:31,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:31,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811477412] [2021-12-17 16:57:31,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:31,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:31,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:31,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:31,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811477412] [2021-12-17 16:57:31,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811477412] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:31,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:31,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:31,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433602410] [2021-12-17 16:57:31,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:31,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:31,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:31,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:31,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:31,103 INFO L87 Difference]: Start difference. First operand 1555 states and 2089 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:33,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:33,553 INFO L93 Difference]: Finished difference Result 2731 states and 3710 transitions. [2021-12-17 16:57:33,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:33,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:33,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:33,556 INFO L225 Difference]: With dead ends: 2731 [2021-12-17 16:57:33,556 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:33,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:33,557 INFO L933 BasicCegarLoop]: 962 mSDtfsCounter, 6204 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 3745 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6204 SdHoareTripleChecker+Valid, 4801 SdHoareTripleChecker+Invalid, 4093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 3745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:33,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6204 Valid, 4801 Invalid, 4093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 3745 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:57:33,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:33,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1555. [2021-12-17 16:57:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3676277850589778) internal successors, (2087), 1554 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:33,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2087 transitions. [2021-12-17 16:57:33,877 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2087 transitions. Word has length 115 [2021-12-17 16:57:33,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:33,877 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2087 transitions. [2021-12-17 16:57:33,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2087 transitions. [2021-12-17 16:57:33,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:33,878 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:33,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:33,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-12-17 16:57:33,879 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:33,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:33,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1009109674, now seen corresponding path program 1 times [2021-12-17 16:57:33,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:33,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066271567] [2021-12-17 16:57:33,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:33,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:33,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:33,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066271567] [2021-12-17 16:57:33,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066271567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:33,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:33,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:33,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554728492] [2021-12-17 16:57:33,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:33,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:33,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:33,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:33,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:33,978 INFO L87 Difference]: Start difference. First operand 1555 states and 2087 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:36,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:36,550 INFO L93 Difference]: Finished difference Result 2854 states and 3899 transitions. [2021-12-17 16:57:36,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:36,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:36,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:36,553 INFO L225 Difference]: With dead ends: 2854 [2021-12-17 16:57:36,553 INFO L226 Difference]: Without dead ends: 2670 [2021-12-17 16:57:36,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:36,554 INFO L933 BasicCegarLoop]: 1202 mSDtfsCounter, 4590 mSDsluCounter, 4781 mSDsCounter, 0 mSdLazyCounter, 4434 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4590 SdHoareTripleChecker+Valid, 5983 SdHoareTripleChecker+Invalid, 4574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 4434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:36,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4590 Valid, 5983 Invalid, 4574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 4434 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:57:36,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2021-12-17 16:57:36,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 1555. [2021-12-17 16:57:36,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3663171690694627) internal successors, (2085), 1554 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:36,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2085 transitions. [2021-12-17 16:57:36,875 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2085 transitions. Word has length 115 [2021-12-17 16:57:36,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:36,875 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2085 transitions. [2021-12-17 16:57:36,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:36,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2085 transitions. [2021-12-17 16:57:36,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:36,876 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:36,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:36,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-12-17 16:57:36,877 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:36,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:36,877 INFO L85 PathProgramCache]: Analyzing trace with hash 204013820, now seen corresponding path program 1 times [2021-12-17 16:57:36,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:36,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682476372] [2021-12-17 16:57:36,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:36,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:37,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:37,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:37,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682476372] [2021-12-17 16:57:37,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682476372] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:37,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:37,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:57:37,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813710744] [2021-12-17 16:57:37,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:37,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:57:37,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:37,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:57:37,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:57:37,015 INFO L87 Difference]: Start difference. First operand 1555 states and 2085 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:40,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:40,825 INFO L93 Difference]: Finished difference Result 3528 states and 4885 transitions. [2021-12-17 16:57:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 16:57:40,825 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:40,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:40,829 INFO L225 Difference]: With dead ends: 3528 [2021-12-17 16:57:40,829 INFO L226 Difference]: Without dead ends: 3358 [2021-12-17 16:57:40,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 16:57:40,830 INFO L933 BasicCegarLoop]: 1033 mSDtfsCounter, 8883 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 3606 mSolverCounterSat, 1301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8883 SdHoareTripleChecker+Valid, 4467 SdHoareTripleChecker+Invalid, 4907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1301 IncrementalHoareTripleChecker+Valid, 3606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:40,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8883 Valid, 4467 Invalid, 4907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1301 Valid, 3606 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 16:57:40,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2021-12-17 16:57:41,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 1563. [2021-12-17 16:57:41,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3644067796610169) internal successors, (2093), 1562 states have internal predecessors, (2093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:41,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2093 transitions. [2021-12-17 16:57:41,172 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2093 transitions. Word has length 115 [2021-12-17 16:57:41,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:41,173 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2093 transitions. [2021-12-17 16:57:41,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:41,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2093 transitions. [2021-12-17 16:57:41,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:41,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:41,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:41,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-12-17 16:57:41,175 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:41,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:41,176 INFO L85 PathProgramCache]: Analyzing trace with hash -855451567, now seen corresponding path program 1 times [2021-12-17 16:57:41,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:41,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082243502] [2021-12-17 16:57:41,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:41,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:41,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:41,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:41,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082243502] [2021-12-17 16:57:41,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082243502] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:41,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:41,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:41,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335373159] [2021-12-17 16:57:41,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:41,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:41,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:41,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:41,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:41,267 INFO L87 Difference]: Start difference. First operand 1563 states and 2093 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:43,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:43,735 INFO L93 Difference]: Finished difference Result 2727 states and 3700 transitions. [2021-12-17 16:57:43,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:43,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:43,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:43,738 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:57:43,738 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:43,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:43,739 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 6183 mSDsluCounter, 3858 mSDsCounter, 0 mSdLazyCounter, 3751 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6183 SdHoareTripleChecker+Valid, 4826 SdHoareTripleChecker+Invalid, 4098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 3751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:43,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6183 Valid, 4826 Invalid, 4098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 3751 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:57:43,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:44,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:57:44,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.363102998696219) internal successors, (2091), 1562 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:44,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2091 transitions. [2021-12-17 16:57:44,053 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2091 transitions. Word has length 115 [2021-12-17 16:57:44,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:44,053 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2091 transitions. [2021-12-17 16:57:44,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:44,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2091 transitions. [2021-12-17 16:57:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:44,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:44,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:44,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-12-17 16:57:44,055 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:44,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1618560164, now seen corresponding path program 1 times [2021-12-17 16:57:44,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:44,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927051602] [2021-12-17 16:57:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:44,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:44,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:44,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:44,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927051602] [2021-12-17 16:57:44,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927051602] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:44,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:44,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:44,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010920338] [2021-12-17 16:57:44,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:44,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:44,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:44,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:44,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:44,155 INFO L87 Difference]: Start difference. First operand 1563 states and 2091 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:46,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:46,673 INFO L93 Difference]: Finished difference Result 2731 states and 3702 transitions. [2021-12-17 16:57:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:46,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:46,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:46,676 INFO L225 Difference]: With dead ends: 2731 [2021-12-17 16:57:46,676 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:46,676 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:57:46,678 INFO L933 BasicCegarLoop]: 969 mSDtfsCounter, 6180 mSDsluCounter, 3860 mSDsCounter, 0 mSdLazyCounter, 3742 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6180 SdHoareTripleChecker+Valid, 4829 SdHoareTripleChecker+Invalid, 4089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 3742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:46,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6180 Valid, 4829 Invalid, 4089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 3742 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:57:46,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:46,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:57:46,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.361799217731421) internal successors, (2089), 1562 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:46,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2089 transitions. [2021-12-17 16:57:46,994 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2089 transitions. Word has length 115 [2021-12-17 16:57:46,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:46,994 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2089 transitions. [2021-12-17 16:57:46,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:46,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2089 transitions. [2021-12-17 16:57:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:46,995 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:46,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:46,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-12-17 16:57:46,995 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:46,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1411525145, now seen corresponding path program 1 times [2021-12-17 16:57:46,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:46,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264515011] [2021-12-17 16:57:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:46,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:47,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:47,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264515011] [2021-12-17 16:57:47,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264515011] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:47,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:47,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:47,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499161065] [2021-12-17 16:57:47,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:47,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:47,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:47,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:47,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:47,079 INFO L87 Difference]: Start difference. First operand 1563 states and 2089 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:49,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:49,395 INFO L93 Difference]: Finished difference Result 2566 states and 3450 transitions. [2021-12-17 16:57:49,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:49,395 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:49,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:49,398 INFO L225 Difference]: With dead ends: 2566 [2021-12-17 16:57:49,398 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:49,399 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:57:49,399 INFO L933 BasicCegarLoop]: 1037 mSDtfsCounter, 6590 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 3322 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6590 SdHoareTripleChecker+Valid, 4167 SdHoareTripleChecker+Invalid, 3755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 3322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:49,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6590 Valid, 4167 Invalid, 3755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 3322 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:57:49,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:49,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:57:49,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.360495436766623) internal successors, (2087), 1562 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2087 transitions. [2021-12-17 16:57:49,744 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2087 transitions. Word has length 115 [2021-12-17 16:57:49,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:49,744 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2087 transitions. [2021-12-17 16:57:49,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2087 transitions. [2021-12-17 16:57:49,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:49,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:49,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:49,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-12-17 16:57:49,746 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:49,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:49,746 INFO L85 PathProgramCache]: Analyzing trace with hash 928914825, now seen corresponding path program 1 times [2021-12-17 16:57:49,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:49,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494745168] [2021-12-17 16:57:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:49,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:49,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:49,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:49,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494745168] [2021-12-17 16:57:49,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494745168] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:49,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:49,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:49,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268836778] [2021-12-17 16:57:49,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:49,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:49,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:49,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:49,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:49,842 INFO L87 Difference]: Start difference. First operand 1563 states and 2087 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:52,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:52,339 INFO L93 Difference]: Finished difference Result 2727 states and 3692 transitions. [2021-12-17 16:57:52,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:52,340 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:52,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:52,343 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:57:52,343 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:57:52,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:52,344 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 6171 mSDsluCounter, 3858 mSDsCounter, 0 mSdLazyCounter, 3732 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6171 SdHoareTripleChecker+Valid, 4826 SdHoareTripleChecker+Invalid, 4079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 3732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:52,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6171 Valid, 4826 Invalid, 4079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 3732 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:57:52,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:57:52,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:57:52,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3591916558018253) internal successors, (2085), 1562 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2085 transitions. [2021-12-17 16:57:52,685 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2085 transitions. Word has length 115 [2021-12-17 16:57:52,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:52,685 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2085 transitions. [2021-12-17 16:57:52,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:52,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2085 transitions. [2021-12-17 16:57:52,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:52,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:52,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:52,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-12-17 16:57:52,687 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:52,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1697950163, now seen corresponding path program 1 times [2021-12-17 16:57:52,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:52,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6144183] [2021-12-17 16:57:52,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:52,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:52,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:52,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:52,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6144183] [2021-12-17 16:57:52,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6144183] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:52,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:52,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:52,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988965894] [2021-12-17 16:57:52,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:52,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:52,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:52,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:52,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:52,797 INFO L87 Difference]: Start difference. First operand 1563 states and 2085 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:55,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:55,319 INFO L93 Difference]: Finished difference Result 2868 states and 3898 transitions. [2021-12-17 16:57:55,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:55,319 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:55,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:55,322 INFO L225 Difference]: With dead ends: 2868 [2021-12-17 16:57:55,322 INFO L226 Difference]: Without dead ends: 2686 [2021-12-17 16:57:55,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:55,323 INFO L933 BasicCegarLoop]: 1135 mSDtfsCounter, 4681 mSDsluCounter, 4585 mSDsCounter, 0 mSdLazyCounter, 4216 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4681 SdHoareTripleChecker+Valid, 5720 SdHoareTripleChecker+Invalid, 4358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 4216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:55,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4681 Valid, 5720 Invalid, 4358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 4216 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:57:55,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2021-12-17 16:57:55,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1563. [2021-12-17 16:57:55,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3578878748370273) internal successors, (2083), 1562 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:55,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2083 transitions. [2021-12-17 16:57:55,644 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2083 transitions. Word has length 115 [2021-12-17 16:57:55,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:55,644 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2083 transitions. [2021-12-17 16:57:55,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:55,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2083 transitions. [2021-12-17 16:57:55,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:55,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:55,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:55,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-12-17 16:57:55,645 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:55,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:55,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1067800529, now seen corresponding path program 1 times [2021-12-17 16:57:55,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:55,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890460958] [2021-12-17 16:57:55,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:55,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:55,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:55,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:55,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890460958] [2021-12-17 16:57:55,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890460958] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:55,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:55,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:55,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427594446] [2021-12-17 16:57:55,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:55,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:55,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:55,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:55,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:55,733 INFO L87 Difference]: Start difference. First operand 1563 states and 2083 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:57:58,022 INFO L93 Difference]: Finished difference Result 2952 states and 4016 transitions. [2021-12-17 16:57:58,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:57:58,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:57:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:57:58,026 INFO L225 Difference]: With dead ends: 2952 [2021-12-17 16:57:58,026 INFO L226 Difference]: Without dead ends: 2722 [2021-12-17 16:57:58,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:57:58,026 INFO L933 BasicCegarLoop]: 1281 mSDtfsCounter, 3305 mSDsluCounter, 3899 mSDsCounter, 0 mSdLazyCounter, 3782 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 3840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:57:58,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3305 Valid, 5180 Invalid, 3840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3782 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:57:58,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-17 16:57:58,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1563. [2021-12-17 16:57:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3565840938722296) internal successors, (2081), 1562 states have internal predecessors, (2081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:58,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2081 transitions. [2021-12-17 16:57:58,398 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2081 transitions. Word has length 115 [2021-12-17 16:57:58,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:57:58,398 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2081 transitions. [2021-12-17 16:57:58,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:57:58,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2081 transitions. [2021-12-17 16:57:58,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:57:58,400 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:57:58,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:57:58,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-12-17 16:57:58,400 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:57:58,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:57:58,400 INFO L85 PathProgramCache]: Analyzing trace with hash -806810001, now seen corresponding path program 1 times [2021-12-17 16:57:58,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:57:58,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578406955] [2021-12-17 16:57:58,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:57:58,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:57:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:57:58,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:57:58,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:57:58,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578406955] [2021-12-17 16:57:58,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578406955] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:57:58,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:57:58,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:57:58,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71015870] [2021-12-17 16:57:58,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:57:58,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:57:58,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:57:58,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:57:58,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:57:58,489 INFO L87 Difference]: Start difference. First operand 1563 states and 2081 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:01,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:01,018 INFO L93 Difference]: Finished difference Result 2735 states and 3695 transitions. [2021-12-17 16:58:01,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:01,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:01,021 INFO L225 Difference]: With dead ends: 2735 [2021-12-17 16:58:01,021 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:58:01,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:01,022 INFO L933 BasicCegarLoop]: 974 mSDtfsCounter, 6151 mSDsluCounter, 3871 mSDsCounter, 0 mSdLazyCounter, 3736 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6151 SdHoareTripleChecker+Valid, 4845 SdHoareTripleChecker+Invalid, 4082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 3736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:01,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6151 Valid, 4845 Invalid, 4082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 3736 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:58:01,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:58:01,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:58:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3552803129074316) internal successors, (2079), 1562 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2079 transitions. [2021-12-17 16:58:01,380 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2079 transitions. Word has length 115 [2021-12-17 16:58:01,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:01,380 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2079 transitions. [2021-12-17 16:58:01,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:01,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2079 transitions. [2021-12-17 16:58:01,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:01,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:01,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:01,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-12-17 16:58:01,382 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:01,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:01,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1105387101, now seen corresponding path program 1 times [2021-12-17 16:58:01,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:01,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315661814] [2021-12-17 16:58:01,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:01,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:01,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:01,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315661814] [2021-12-17 16:58:01,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315661814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:01,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:01,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:01,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009760494] [2021-12-17 16:58:01,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:01,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:01,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:01,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:01,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:01,503 INFO L87 Difference]: Start difference. First operand 1563 states and 2079 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:04,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:04,178 INFO L93 Difference]: Finished difference Result 2876 states and 3902 transitions. [2021-12-17 16:58:04,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:04,179 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:04,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:04,181 INFO L225 Difference]: With dead ends: 2876 [2021-12-17 16:58:04,181 INFO L226 Difference]: Without dead ends: 2686 [2021-12-17 16:58:04,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:04,183 INFO L933 BasicCegarLoop]: 1216 mSDtfsCounter, 5854 mSDsluCounter, 4809 mSDsCounter, 0 mSdLazyCounter, 4453 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5854 SdHoareTripleChecker+Valid, 6025 SdHoareTripleChecker+Invalid, 4627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 4453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:04,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5854 Valid, 6025 Invalid, 4627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 4453 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:58:04,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2021-12-17 16:58:04,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1563. [2021-12-17 16:58:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3539765319426336) internal successors, (2077), 1562 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:04,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2077 transitions. [2021-12-17 16:58:04,529 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2077 transitions. Word has length 115 [2021-12-17 16:58:04,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:04,530 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2077 transitions. [2021-12-17 16:58:04,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:04,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2077 transitions. [2021-12-17 16:58:04,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:04,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:04,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:04,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-12-17 16:58:04,531 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:04,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:04,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1171822500, now seen corresponding path program 1 times [2021-12-17 16:58:04,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:04,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583269037] [2021-12-17 16:58:04,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:04,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:04,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:04,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:04,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583269037] [2021-12-17 16:58:04,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583269037] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:04,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:04,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:04,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408630616] [2021-12-17 16:58:04,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:04,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:04,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:04,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:04,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:04,624 INFO L87 Difference]: Start difference. First operand 1563 states and 2077 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:07,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:07,198 INFO L93 Difference]: Finished difference Result 2735 states and 3691 transitions. [2021-12-17 16:58:07,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:07,198 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:07,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:07,201 INFO L225 Difference]: With dead ends: 2735 [2021-12-17 16:58:07,201 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:58:07,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:07,201 INFO L933 BasicCegarLoop]: 987 mSDtfsCounter, 6123 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 3752 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6123 SdHoareTripleChecker+Valid, 4897 SdHoareTripleChecker+Invalid, 4097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 3752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:07,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6123 Valid, 4897 Invalid, 4097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 3752 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:58:07,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:58:07,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:58:07,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3526727509778358) internal successors, (2075), 1562 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2075 transitions. [2021-12-17 16:58:07,555 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2075 transitions. Word has length 115 [2021-12-17 16:58:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:07,555 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2075 transitions. [2021-12-17 16:58:07,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2075 transitions. [2021-12-17 16:58:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:07,556 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:07,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:07,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-12-17 16:58:07,556 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:07,557 INFO L85 PathProgramCache]: Analyzing trace with hash 740374602, now seen corresponding path program 1 times [2021-12-17 16:58:07,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:07,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852966936] [2021-12-17 16:58:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:07,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:07,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:07,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:07,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852966936] [2021-12-17 16:58:07,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852966936] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:07,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:07,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:07,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760438921] [2021-12-17 16:58:07,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:07,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:07,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:07,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:07,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:07,641 INFO L87 Difference]: Start difference. First operand 1563 states and 2075 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:10,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:10,289 INFO L93 Difference]: Finished difference Result 2876 states and 3896 transitions. [2021-12-17 16:58:10,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:10,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:10,292 INFO L225 Difference]: With dead ends: 2876 [2021-12-17 16:58:10,292 INFO L226 Difference]: Without dead ends: 2686 [2021-12-17 16:58:10,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:10,293 INFO L933 BasicCegarLoop]: 1238 mSDtfsCounter, 4507 mSDsluCounter, 4773 mSDsCounter, 0 mSdLazyCounter, 4407 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4507 SdHoareTripleChecker+Valid, 6011 SdHoareTripleChecker+Invalid, 4546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 4407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:10,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4507 Valid, 6011 Invalid, 4546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 4407 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:58:10,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2021-12-17 16:58:10,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1563. [2021-12-17 16:58:10,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3513689700130378) internal successors, (2073), 1562 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:10,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2073 transitions. [2021-12-17 16:58:10,649 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2073 transitions. Word has length 115 [2021-12-17 16:58:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:10,649 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2073 transitions. [2021-12-17 16:58:10,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2073 transitions. [2021-12-17 16:58:10,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:10,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:10,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:10,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-12-17 16:58:10,650 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:10,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash -661000676, now seen corresponding path program 1 times [2021-12-17 16:58:10,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:10,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774448307] [2021-12-17 16:58:10,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:10,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:10,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:10,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:10,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774448307] [2021-12-17 16:58:10,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774448307] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:10,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:10,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:10,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47648350] [2021-12-17 16:58:10,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:10,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:10,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:10,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:10,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:10,736 INFO L87 Difference]: Start difference. First operand 1563 states and 2073 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:13,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:13,304 INFO L93 Difference]: Finished difference Result 2731 states and 3682 transitions. [2021-12-17 16:58:13,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:13,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:13,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:13,307 INFO L225 Difference]: With dead ends: 2731 [2021-12-17 16:58:13,307 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:58:13,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:13,308 INFO L933 BasicCegarLoop]: 999 mSDtfsCounter, 6092 mSDsluCounter, 3950 mSDsCounter, 0 mSdLazyCounter, 3772 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6092 SdHoareTripleChecker+Valid, 4949 SdHoareTripleChecker+Invalid, 4116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 3772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:13,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6092 Valid, 4949 Invalid, 4116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 3772 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:58:13,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:58:13,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:58:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3500651890482398) internal successors, (2071), 1562 states have internal predecessors, (2071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2071 transitions. [2021-12-17 16:58:13,674 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2071 transitions. Word has length 115 [2021-12-17 16:58:13,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:13,674 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2071 transitions. [2021-12-17 16:58:13,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2071 transitions. [2021-12-17 16:58:13,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:13,676 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:13,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:13,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-12-17 16:58:13,676 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:13,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:13,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1012953610, now seen corresponding path program 1 times [2021-12-17 16:58:13,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:13,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048743604] [2021-12-17 16:58:13,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:13,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:13,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:13,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048743604] [2021-12-17 16:58:13,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048743604] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:13,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:13,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:13,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377307676] [2021-12-17 16:58:13,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:13,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:13,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:13,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:13,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:13,764 INFO L87 Difference]: Start difference. First operand 1563 states and 2071 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:16,318 INFO L93 Difference]: Finished difference Result 2874 states and 3887 transitions. [2021-12-17 16:58:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:16,319 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:16,321 INFO L225 Difference]: With dead ends: 2874 [2021-12-17 16:58:16,321 INFO L226 Difference]: Without dead ends: 2686 [2021-12-17 16:58:16,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:16,322 INFO L933 BasicCegarLoop]: 1217 mSDtfsCounter, 4523 mSDsluCounter, 4348 mSDsCounter, 0 mSdLazyCounter, 4084 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4523 SdHoareTripleChecker+Valid, 5565 SdHoareTripleChecker+Invalid, 4223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 4084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:16,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4523 Valid, 5565 Invalid, 4223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 4084 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:58:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2021-12-17 16:58:16,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1563. [2021-12-17 16:58:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.348761408083442) internal successors, (2069), 1562 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:16,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2069 transitions. [2021-12-17 16:58:16,689 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2069 transitions. Word has length 115 [2021-12-17 16:58:16,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:16,689 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2069 transitions. [2021-12-17 16:58:16,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:16,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2069 transitions. [2021-12-17 16:58:16,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:16,690 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:16,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:16,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-12-17 16:58:16,690 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:16,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:16,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1201496803, now seen corresponding path program 1 times [2021-12-17 16:58:16,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:16,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337418488] [2021-12-17 16:58:16,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:16,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:16,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:16,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337418488] [2021-12-17 16:58:16,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337418488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:16,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:16,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:16,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866788562] [2021-12-17 16:58:16,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:16,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:16,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:16,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:16,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:16,781 INFO L87 Difference]: Start difference. First operand 1563 states and 2069 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:19,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:19,184 INFO L93 Difference]: Finished difference Result 2876 states and 3888 transitions. [2021-12-17 16:58:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:19,184 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:19,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:19,187 INFO L225 Difference]: With dead ends: 2876 [2021-12-17 16:58:19,187 INFO L226 Difference]: Without dead ends: 2686 [2021-12-17 16:58:19,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:19,188 INFO L933 BasicCegarLoop]: 1238 mSDtfsCounter, 5915 mSDsluCounter, 3775 mSDsCounter, 0 mSdLazyCounter, 3661 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5915 SdHoareTripleChecker+Valid, 5013 SdHoareTripleChecker+Invalid, 3836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 3661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:19,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5915 Valid, 5013 Invalid, 3836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3661 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:58:19,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2021-12-17 16:58:19,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1563. [2021-12-17 16:58:19,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.347457627118644) internal successors, (2067), 1562 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2067 transitions. [2021-12-17 16:58:19,539 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2067 transitions. Word has length 115 [2021-12-17 16:58:19,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:19,539 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2067 transitions. [2021-12-17 16:58:19,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:19,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2067 transitions. [2021-12-17 16:58:19,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:19,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:19,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:19,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-12-17 16:58:19,540 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:19,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:19,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1181273391, now seen corresponding path program 1 times [2021-12-17 16:58:19,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:19,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349289016] [2021-12-17 16:58:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:19,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:19,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:19,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349289016] [2021-12-17 16:58:19,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349289016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:19,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:19,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:19,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441420182] [2021-12-17 16:58:19,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:19,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:19,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:19,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:19,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:19,632 INFO L87 Difference]: Start difference. First operand 1563 states and 2067 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:22,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:22,264 INFO L93 Difference]: Finished difference Result 2735 states and 3681 transitions. [2021-12-17 16:58:22,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:22,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:22,267 INFO L225 Difference]: With dead ends: 2735 [2021-12-17 16:58:22,267 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:58:22,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:22,267 INFO L933 BasicCegarLoop]: 1022 mSDtfsCounter, 6048 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 3800 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6048 SdHoareTripleChecker+Valid, 5037 SdHoareTripleChecker+Invalid, 4142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 3800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:22,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6048 Valid, 5037 Invalid, 4142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 3800 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:58:22,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:58:22,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:58:22,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3461538461538463) internal successors, (2065), 1562 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:22,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2065 transitions. [2021-12-17 16:58:22,626 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2065 transitions. Word has length 115 [2021-12-17 16:58:22,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:22,626 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2065 transitions. [2021-12-17 16:58:22,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:22,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2065 transitions. [2021-12-17 16:58:22,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:22,627 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:22,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:22,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-12-17 16:58:22,628 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:22,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:22,628 INFO L85 PathProgramCache]: Analyzing trace with hash -396269581, now seen corresponding path program 1 times [2021-12-17 16:58:22,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:22,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887841013] [2021-12-17 16:58:22,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:22,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:22,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:22,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887841013] [2021-12-17 16:58:22,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887841013] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:22,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:22,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:22,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968319601] [2021-12-17 16:58:22,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:22,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:22,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:22,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:22,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:22,717 INFO L87 Difference]: Start difference. First operand 1563 states and 2065 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:25,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:25,099 INFO L93 Difference]: Finished difference Result 2874 states and 3877 transitions. [2021-12-17 16:58:25,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:25,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:25,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:25,102 INFO L225 Difference]: With dead ends: 2874 [2021-12-17 16:58:25,102 INFO L226 Difference]: Without dead ends: 2686 [2021-12-17 16:58:25,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:25,103 INFO L933 BasicCegarLoop]: 1115 mSDtfsCounter, 6204 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 3445 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6204 SdHoareTripleChecker+Valid, 4797 SdHoareTripleChecker+Invalid, 3621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 3445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:25,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6204 Valid, 4797 Invalid, 3621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 3445 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:58:25,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2021-12-17 16:58:25,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1563. [2021-12-17 16:58:25,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3448500651890483) internal successors, (2063), 1562 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:25,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2063 transitions. [2021-12-17 16:58:25,478 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2063 transitions. Word has length 115 [2021-12-17 16:58:25,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:25,478 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2063 transitions. [2021-12-17 16:58:25,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:25,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2063 transitions. [2021-12-17 16:58:25,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:25,479 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:25,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:25,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-12-17 16:58:25,480 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:25,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:25,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1691832070, now seen corresponding path program 1 times [2021-12-17 16:58:25,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:25,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937002197] [2021-12-17 16:58:25,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:25,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:25,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:25,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937002197] [2021-12-17 16:58:25,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937002197] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:25,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:25,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:25,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788221492] [2021-12-17 16:58:25,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:25,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:25,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:25,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:25,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:25,556 INFO L87 Difference]: Start difference. First operand 1563 states and 2063 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:27,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:27,984 INFO L93 Difference]: Finished difference Result 2731 states and 3672 transitions. [2021-12-17 16:58:27,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:27,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:27,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:27,987 INFO L225 Difference]: With dead ends: 2731 [2021-12-17 16:58:27,987 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:58:27,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:27,988 INFO L933 BasicCegarLoop]: 1030 mSDtfsCounter, 6380 mSDsluCounter, 3193 mSDsCounter, 0 mSdLazyCounter, 3230 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6380 SdHoareTripleChecker+Valid, 4223 SdHoareTripleChecker+Invalid, 3647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 3230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:27,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6380 Valid, 4223 Invalid, 3647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 3230 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:58:27,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:58:28,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:58:28,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3435462842242503) internal successors, (2061), 1562 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:28,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2061 transitions. [2021-12-17 16:58:28,366 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2061 transitions. Word has length 115 [2021-12-17 16:58:28,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:28,366 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2061 transitions. [2021-12-17 16:58:28,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2061 transitions. [2021-12-17 16:58:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:28,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:28,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:28,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-12-17 16:58:28,367 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:28,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1044376721, now seen corresponding path program 1 times [2021-12-17 16:58:28,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:28,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299625535] [2021-12-17 16:58:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:28,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:28,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:28,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299625535] [2021-12-17 16:58:28,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299625535] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:28,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:28,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:28,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117147030] [2021-12-17 16:58:28,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:28,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:28,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:28,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:28,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:28,464 INFO L87 Difference]: Start difference. First operand 1563 states and 2061 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:31,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:31,182 INFO L93 Difference]: Finished difference Result 2731 states and 3670 transitions. [2021-12-17 16:58:31,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:31,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:31,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:31,185 INFO L225 Difference]: With dead ends: 2731 [2021-12-17 16:58:31,185 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:58:31,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:31,186 INFO L933 BasicCegarLoop]: 1085 mSDtfsCounter, 5912 mSDsluCounter, 4209 mSDsCounter, 0 mSdLazyCounter, 3995 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5912 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 4334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:31,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5912 Valid, 5294 Invalid, 4334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 3995 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:58:31,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:58:31,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:58:31,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3422425032594525) internal successors, (2059), 1562 states have internal predecessors, (2059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:31,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2059 transitions. [2021-12-17 16:58:31,567 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2059 transitions. Word has length 115 [2021-12-17 16:58:31,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:31,567 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2059 transitions. [2021-12-17 16:58:31,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:31,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2059 transitions. [2021-12-17 16:58:31,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:31,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:31,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:31,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-12-17 16:58:31,569 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:31,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:31,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1985012495, now seen corresponding path program 1 times [2021-12-17 16:58:31,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:31,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21319715] [2021-12-17 16:58:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:31,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:31,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:31,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21319715] [2021-12-17 16:58:31,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21319715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:31,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:31,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:31,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367094569] [2021-12-17 16:58:31,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:31,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:31,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:31,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:31,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:31,653 INFO L87 Difference]: Start difference. First operand 1563 states and 2059 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:34,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:34,131 INFO L93 Difference]: Finished difference Result 2735 states and 3673 transitions. [2021-12-17 16:58:34,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:34,132 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:34,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:34,134 INFO L225 Difference]: With dead ends: 2735 [2021-12-17 16:58:34,134 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:58:34,135 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:58:34,135 INFO L933 BasicCegarLoop]: 1150 mSDtfsCounter, 3271 mSDsluCounter, 3468 mSDsCounter, 0 mSdLazyCounter, 3587 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3271 SdHoareTripleChecker+Valid, 4618 SdHoareTripleChecker+Invalid, 3791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:34,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3271 Valid, 4618 Invalid, 3791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3587 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:58:34,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:58:34,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:58:34,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3409387222946545) internal successors, (2057), 1562 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:34,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2057 transitions. [2021-12-17 16:58:34,499 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2057 transitions. Word has length 115 [2021-12-17 16:58:34,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:34,499 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2057 transitions. [2021-12-17 16:58:34,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:34,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2057 transitions. [2021-12-17 16:58:34,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 16:58:34,500 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:34,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:34,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-12-17 16:58:34,501 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:34,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:34,501 INFO L85 PathProgramCache]: Analyzing trace with hash -395682645, now seen corresponding path program 1 times [2021-12-17 16:58:34,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:34,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364323348] [2021-12-17 16:58:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:34,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:34,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:34,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:34,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364323348] [2021-12-17 16:58:34,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364323348] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:34,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:34,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:34,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229359024] [2021-12-17 16:58:34,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:34,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:34,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:34,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:34,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:34,582 INFO L87 Difference]: Start difference. First operand 1563 states and 2057 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:37,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:37,055 INFO L93 Difference]: Finished difference Result 2731 states and 3664 transitions. [2021-12-17 16:58:37,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:37,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-17 16:58:37,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:37,059 INFO L225 Difference]: With dead ends: 2731 [2021-12-17 16:58:37,059 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:58:37,059 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:58:37,059 INFO L933 BasicCegarLoop]: 1097 mSDtfsCounter, 4809 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 3390 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 4412 SdHoareTripleChecker+Invalid, 3700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 3390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:37,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4809 Valid, 4412 Invalid, 3700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 3390 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:58:37,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:58:37,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:58:37,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3396349413298565) internal successors, (2055), 1562 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:37,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2055 transitions. [2021-12-17 16:58:37,430 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2055 transitions. Word has length 115 [2021-12-17 16:58:37,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:37,430 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2055 transitions. [2021-12-17 16:58:37,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:37,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2055 transitions. [2021-12-17 16:58:37,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:58:37,431 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:37,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:37,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-12-17 16:58:37,432 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:37,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:37,432 INFO L85 PathProgramCache]: Analyzing trace with hash 845319688, now seen corresponding path program 1 times [2021-12-17 16:58:37,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:37,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537419982] [2021-12-17 16:58:37,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:37,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:37,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:37,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537419982] [2021-12-17 16:58:37,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537419982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:37,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:37,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:37,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946349459] [2021-12-17 16:58:37,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:37,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:37,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:37,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:37,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:37,517 INFO L87 Difference]: Start difference. First operand 1563 states and 2055 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:40,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:40,214 INFO L93 Difference]: Finished difference Result 2728 states and 3657 transitions. [2021-12-17 16:58:40,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:40,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:58:40,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:40,218 INFO L225 Difference]: With dead ends: 2728 [2021-12-17 16:58:40,218 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:58:40,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:40,218 INFO L933 BasicCegarLoop]: 1030 mSDtfsCounter, 6006 mSDsluCounter, 4044 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6006 SdHoareTripleChecker+Valid, 5074 SdHoareTripleChecker+Invalid, 4128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:40,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6006 Valid, 5074 Invalid, 4128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 3787 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:58:40,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:58:40,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1563. [2021-12-17 16:58:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.3389830508474576) internal successors, (2054), 1562 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:40,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2054 transitions. [2021-12-17 16:58:40,605 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2054 transitions. Word has length 116 [2021-12-17 16:58:40,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:40,605 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2054 transitions. [2021-12-17 16:58:40,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2054 transitions. [2021-12-17 16:58:40,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:58:40,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:40,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:40,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-12-17 16:58:40,607 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:40,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:40,607 INFO L85 PathProgramCache]: Analyzing trace with hash -790476927, now seen corresponding path program 1 times [2021-12-17 16:58:40,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:40,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558697337] [2021-12-17 16:58:40,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:40,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:40,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:40,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558697337] [2021-12-17 16:58:40,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558697337] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:40,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:40,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:40,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017261999] [2021-12-17 16:58:40,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:40,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:40,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:40,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:40,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:40,685 INFO L87 Difference]: Start difference. First operand 1563 states and 2054 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:43,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:43,117 INFO L93 Difference]: Finished difference Result 2727 states and 3655 transitions. [2021-12-17 16:58:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:43,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:58:43,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:43,120 INFO L225 Difference]: With dead ends: 2727 [2021-12-17 16:58:43,120 INFO L226 Difference]: Without dead ends: 2561 [2021-12-17 16:58:43,120 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:58:43,120 INFO L933 BasicCegarLoop]: 1097 mSDtfsCounter, 3365 mSDsluCounter, 3317 mSDsCounter, 0 mSdLazyCounter, 3384 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3365 SdHoareTripleChecker+Valid, 4414 SdHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 3384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:43,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3365 Valid, 4414 Invalid, 3591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 3384 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:58:43,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-17 16:58:43,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1559. [2021-12-17 16:58:43,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1530 states have (on average 1.3392156862745097) internal successors, (2049), 1558 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2049 transitions. [2021-12-17 16:58:43,498 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2049 transitions. Word has length 116 [2021-12-17 16:58:43,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:43,498 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 2049 transitions. [2021-12-17 16:58:43,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:43,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2049 transitions. [2021-12-17 16:58:43,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:58:43,499 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:43,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:43,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-12-17 16:58:43,500 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:43,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:43,500 INFO L85 PathProgramCache]: Analyzing trace with hash 871035336, now seen corresponding path program 1 times [2021-12-17 16:58:43,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:43,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689896316] [2021-12-17 16:58:43,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:43,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:43,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:43,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:43,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689896316] [2021-12-17 16:58:43,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689896316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:43,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:43,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:43,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802023214] [2021-12-17 16:58:43,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:43,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:43,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:43,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:43,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:43,603 INFO L87 Difference]: Start difference. First operand 1559 states and 2049 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:46,251 INFO L93 Difference]: Finished difference Result 2696 states and 3604 transitions. [2021-12-17 16:58:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:46,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:58:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:46,254 INFO L225 Difference]: With dead ends: 2696 [2021-12-17 16:58:46,254 INFO L226 Difference]: Without dead ends: 2530 [2021-12-17 16:58:46,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:46,255 INFO L933 BasicCegarLoop]: 1022 mSDtfsCounter, 5985 mSDsluCounter, 3996 mSDsCounter, 0 mSdLazyCounter, 3761 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5985 SdHoareTripleChecker+Valid, 5018 SdHoareTripleChecker+Invalid, 4104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 3761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:46,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5985 Valid, 5018 Invalid, 4104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 3761 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:58:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2021-12-17 16:58:46,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 1562. [2021-12-17 16:58:46,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1533 states have (on average 1.3392041748206132) internal successors, (2053), 1561 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:46,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2053 transitions. [2021-12-17 16:58:46,654 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2053 transitions. Word has length 116 [2021-12-17 16:58:46,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:46,654 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2053 transitions. [2021-12-17 16:58:46,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2053 transitions. [2021-12-17 16:58:46,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:58:46,656 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:46,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:46,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-12-17 16:58:46,656 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:46,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:46,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1757179426, now seen corresponding path program 1 times [2021-12-17 16:58:46,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:46,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624012638] [2021-12-17 16:58:46,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:46,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:46,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:46,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:46,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624012638] [2021-12-17 16:58:46,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624012638] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:46,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:46,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:46,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298137923] [2021-12-17 16:58:46,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:46,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:46,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:46,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:46,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:46,744 INFO L87 Difference]: Start difference. First operand 1562 states and 2053 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:49,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:49,409 INFO L93 Difference]: Finished difference Result 2729 states and 3656 transitions. [2021-12-17 16:58:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:49,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:58:49,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:49,412 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:58:49,412 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:58:49,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:49,413 INFO L933 BasicCegarLoop]: 1030 mSDtfsCounter, 5998 mSDsluCounter, 4044 mSDsCounter, 0 mSdLazyCounter, 3779 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5998 SdHoareTripleChecker+Valid, 5074 SdHoareTripleChecker+Invalid, 4120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 3779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:49,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5998 Valid, 5074 Invalid, 4120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 3779 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:58:49,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:58:49,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1562. [2021-12-17 16:58:49,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1533 states have (on average 1.3385518590998042) internal successors, (2052), 1561 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:49,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2052 transitions. [2021-12-17 16:58:49,810 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2052 transitions. Word has length 116 [2021-12-17 16:58:49,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:49,810 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2052 transitions. [2021-12-17 16:58:49,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:49,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2052 transitions. [2021-12-17 16:58:49,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:58:49,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:49,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:49,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-12-17 16:58:49,812 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:49,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:49,812 INFO L85 PathProgramCache]: Analyzing trace with hash 621576749, now seen corresponding path program 1 times [2021-12-17 16:58:49,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:49,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869402241] [2021-12-17 16:58:49,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:49,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:49,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:49,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:49,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869402241] [2021-12-17 16:58:49,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869402241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:49,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:49,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:49,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425409536] [2021-12-17 16:58:49,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:49,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:49,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:49,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:49,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:49,905 INFO L87 Difference]: Start difference. First operand 1562 states and 2052 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:52,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:52,672 INFO L93 Difference]: Finished difference Result 2857 states and 3840 transitions. [2021-12-17 16:58:52,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:52,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:58:52,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:52,675 INFO L225 Difference]: With dead ends: 2857 [2021-12-17 16:58:52,676 INFO L226 Difference]: Without dead ends: 2685 [2021-12-17 16:58:52,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:52,676 INFO L933 BasicCegarLoop]: 1293 mSDtfsCounter, 4356 mSDsluCounter, 4960 mSDsCounter, 0 mSdLazyCounter, 4502 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4356 SdHoareTripleChecker+Valid, 6253 SdHoareTripleChecker+Invalid, 4639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 4502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:52,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4356 Valid, 6253 Invalid, 4639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 4502 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:58:52,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2021-12-17 16:58:53,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1562. [2021-12-17 16:58:53,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1533 states have (on average 1.3378995433789955) internal successors, (2051), 1561 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2051 transitions. [2021-12-17 16:58:53,082 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2051 transitions. Word has length 116 [2021-12-17 16:58:53,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:53,083 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2051 transitions. [2021-12-17 16:58:53,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:53,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2051 transitions. [2021-12-17 16:58:53,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:58:53,084 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:53,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:53,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-12-17 16:58:53,084 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:53,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash 703536103, now seen corresponding path program 1 times [2021-12-17 16:58:53,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:53,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065644380] [2021-12-17 16:58:53,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:53,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:53,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:53,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065644380] [2021-12-17 16:58:53,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065644380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:53,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:53,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:53,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474398834] [2021-12-17 16:58:53,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:53,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:53,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:53,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:53,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:53,166 INFO L87 Difference]: Start difference. First operand 1562 states and 2051 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:55,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:55,664 INFO L93 Difference]: Finished difference Result 2730 states and 3655 transitions. [2021-12-17 16:58:55,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:55,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:58:55,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:55,667 INFO L225 Difference]: With dead ends: 2730 [2021-12-17 16:58:55,667 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:58:55,667 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:58:55,668 INFO L933 BasicCegarLoop]: 1105 mSDtfsCounter, 6193 mSDsluCounter, 3340 mSDsCounter, 0 mSdLazyCounter, 3377 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6193 SdHoareTripleChecker+Valid, 4445 SdHoareTripleChecker+Invalid, 3790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 3377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:55,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6193 Valid, 4445 Invalid, 3790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 3377 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:58:55,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:58:56,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1558. [2021-12-17 16:58:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1529 states have (on average 1.3381294964028776) internal successors, (2046), 1557 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2046 transitions. [2021-12-17 16:58:56,070 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2046 transitions. Word has length 116 [2021-12-17 16:58:56,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:56,070 INFO L470 AbstractCegarLoop]: Abstraction has 1558 states and 2046 transitions. [2021-12-17 16:58:56,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:56,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2046 transitions. [2021-12-17 16:58:56,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:58:56,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:56,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:56,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-12-17 16:58:56,072 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:56,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:56,072 INFO L85 PathProgramCache]: Analyzing trace with hash 28669883, now seen corresponding path program 1 times [2021-12-17 16:58:56,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:56,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064494770] [2021-12-17 16:58:56,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:56,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:56,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:56,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:56,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064494770] [2021-12-17 16:58:56,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064494770] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:56,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:56,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:56,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876173155] [2021-12-17 16:58:56,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:56,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:56,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:56,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:56,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:56,157 INFO L87 Difference]: Start difference. First operand 1558 states and 2046 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:58,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:58:58,663 INFO L93 Difference]: Finished difference Result 2849 states and 3828 transitions. [2021-12-17 16:58:58,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:58:58,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:58:58,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:58:58,666 INFO L225 Difference]: With dead ends: 2849 [2021-12-17 16:58:58,666 INFO L226 Difference]: Without dead ends: 2677 [2021-12-17 16:58:58,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:58:58,667 INFO L933 BasicCegarLoop]: 1103 mSDtfsCounter, 4949 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 3659 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 5187 SdHoareTripleChecker+Invalid, 3803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 3659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:58:58,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4949 Valid, 5187 Invalid, 3803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 3659 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:58:58,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2021-12-17 16:58:59,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 1558. [2021-12-17 16:58:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1529 states have (on average 1.3374754741661217) internal successors, (2045), 1557 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:59,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2045 transitions. [2021-12-17 16:58:59,076 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2045 transitions. Word has length 116 [2021-12-17 16:58:59,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:58:59,076 INFO L470 AbstractCegarLoop]: Abstraction has 1558 states and 2045 transitions. [2021-12-17 16:58:59,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:58:59,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2045 transitions. [2021-12-17 16:58:59,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:58:59,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:58:59,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:58:59,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-12-17 16:58:59,078 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:58:59,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:58:59,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1164272560, now seen corresponding path program 1 times [2021-12-17 16:58:59,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:58:59,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855194208] [2021-12-17 16:58:59,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:58:59,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:58:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:58:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:58:59,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:58:59,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855194208] [2021-12-17 16:58:59,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855194208] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:58:59,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:58:59,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:58:59,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932018047] [2021-12-17 16:58:59,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:58:59,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:58:59,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:58:59,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:58:59,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:58:59,166 INFO L87 Difference]: Start difference. First operand 1558 states and 2045 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:01,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:01,891 INFO L93 Difference]: Finished difference Result 2729 states and 3652 transitions. [2021-12-17 16:59:01,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:01,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:01,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:01,895 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:59:01,895 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:59:01,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:01,895 INFO L933 BasicCegarLoop]: 1041 mSDtfsCounter, 5962 mSDsluCounter, 4077 mSDsCounter, 0 mSdLazyCounter, 3791 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5962 SdHoareTripleChecker+Valid, 5118 SdHoareTripleChecker+Invalid, 4130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:01,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5962 Valid, 5118 Invalid, 4130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 3791 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:01,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:59:02,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1558. [2021-12-17 16:59:02,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1529 states have (on average 1.3368214519293655) internal successors, (2044), 1557 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:02,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2044 transitions. [2021-12-17 16:59:02,311 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2044 transitions. Word has length 116 [2021-12-17 16:59:02,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:02,311 INFO L470 AbstractCegarLoop]: Abstraction has 1558 states and 2044 transitions. [2021-12-17 16:59:02,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:02,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2044 transitions. [2021-12-17 16:59:02,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:59:02,312 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:02,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:02,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-12-17 16:59:02,313 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:02,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:02,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1983728155, now seen corresponding path program 1 times [2021-12-17 16:59:02,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:02,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982731010] [2021-12-17 16:59:02,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:02,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:02,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:02,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982731010] [2021-12-17 16:59:02,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982731010] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:02,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:02,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:02,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704621006] [2021-12-17 16:59:02,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:02,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:02,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:02,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:02,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:02,415 INFO L87 Difference]: Start difference. First operand 1558 states and 2044 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:05,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:05,160 INFO L93 Difference]: Finished difference Result 2728 states and 3650 transitions. [2021-12-17 16:59:05,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:05,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:05,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:05,163 INFO L225 Difference]: With dead ends: 2728 [2021-12-17 16:59:05,163 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:59:05,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:05,164 INFO L933 BasicCegarLoop]: 1041 mSDtfsCounter, 5957 mSDsluCounter, 4077 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5957 SdHoareTripleChecker+Valid, 5118 SdHoareTripleChecker+Invalid, 4126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:05,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5957 Valid, 5118 Invalid, 4126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 3787 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:05,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:59:05,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1558. [2021-12-17 16:59:05,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1529 states have (on average 1.3361674296926096) internal successors, (2043), 1557 states have internal predecessors, (2043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:05,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2043 transitions. [2021-12-17 16:59:05,576 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2043 transitions. Word has length 116 [2021-12-17 16:59:05,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:05,577 INFO L470 AbstractCegarLoop]: Abstraction has 1558 states and 2043 transitions. [2021-12-17 16:59:05,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:05,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2043 transitions. [2021-12-17 16:59:05,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:59:05,578 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:05,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:05,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-12-17 16:59:05,578 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:05,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:05,578 INFO L85 PathProgramCache]: Analyzing trace with hash 368507854, now seen corresponding path program 1 times [2021-12-17 16:59:05,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:05,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980107537] [2021-12-17 16:59:05,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:05,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:05,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:05,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:05,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980107537] [2021-12-17 16:59:05,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980107537] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:05,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:05,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:05,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739342931] [2021-12-17 16:59:05,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:05,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:05,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:05,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:05,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:05,653 INFO L87 Difference]: Start difference. First operand 1558 states and 2043 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:08,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:08,156 INFO L93 Difference]: Finished difference Result 2730 states and 3651 transitions. [2021-12-17 16:59:08,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:08,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:08,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:08,158 INFO L225 Difference]: With dead ends: 2730 [2021-12-17 16:59:08,158 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:59:08,159 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:59:08,159 INFO L933 BasicCegarLoop]: 1109 mSDtfsCounter, 4738 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 3386 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 3694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 3386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:08,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4738 Valid, 4460 Invalid, 3694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 3386 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:59:08,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:59:08,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1554. [2021-12-17 16:59:08,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1525 states have (on average 1.336393442622951) internal successors, (2038), 1553 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2038 transitions. [2021-12-17 16:59:08,586 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2038 transitions. Word has length 116 [2021-12-17 16:59:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:08,586 INFO L470 AbstractCegarLoop]: Abstraction has 1554 states and 2038 transitions. [2021-12-17 16:59:08,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:08,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2038 transitions. [2021-12-17 16:59:08,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:59:08,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:08,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:08,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-12-17 16:59:08,588 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:08,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:08,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1933301908, now seen corresponding path program 1 times [2021-12-17 16:59:08,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:08,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172387436] [2021-12-17 16:59:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:08,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:08,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:08,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172387436] [2021-12-17 16:59:08,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172387436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:08,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:08,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:08,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477809367] [2021-12-17 16:59:08,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:08,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:08,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:08,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:08,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:08,682 INFO L87 Difference]: Start difference. First operand 1554 states and 2038 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:11,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:11,435 INFO L93 Difference]: Finished difference Result 2728 states and 3648 transitions. [2021-12-17 16:59:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:11,435 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:11,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:11,438 INFO L225 Difference]: With dead ends: 2728 [2021-12-17 16:59:11,438 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:59:11,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:11,438 INFO L933 BasicCegarLoop]: 1042 mSDtfsCounter, 5947 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5947 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 4122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:11,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5947 Valid, 5122 Invalid, 4122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:11,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:59:11,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1554. [2021-12-17 16:59:11,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1525 states have (on average 1.3357377049180328) internal successors, (2037), 1553 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:11,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2037 transitions. [2021-12-17 16:59:11,864 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2037 transitions. Word has length 116 [2021-12-17 16:59:11,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:11,865 INFO L470 AbstractCegarLoop]: Abstraction has 1554 states and 2037 transitions. [2021-12-17 16:59:11,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:11,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2037 transitions. [2021-12-17 16:59:11,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:59:11,866 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:11,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:11,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-12-17 16:59:11,866 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:11,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:11,866 INFO L85 PathProgramCache]: Analyzing trace with hash -437108574, now seen corresponding path program 1 times [2021-12-17 16:59:11,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:11,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364137730] [2021-12-17 16:59:11,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:11,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:11,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:11,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:11,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364137730] [2021-12-17 16:59:11,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364137730] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:11,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:11,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:11,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437049088] [2021-12-17 16:59:11,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:11,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:11,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:11,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:11,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:11,949 INFO L87 Difference]: Start difference. First operand 1554 states and 2037 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:14,518 INFO L93 Difference]: Finished difference Result 2841 states and 3813 transitions. [2021-12-17 16:59:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:14,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:14,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:14,522 INFO L225 Difference]: With dead ends: 2841 [2021-12-17 16:59:14,522 INFO L226 Difference]: Without dead ends: 2669 [2021-12-17 16:59:14,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:14,523 INFO L933 BasicCegarLoop]: 1103 mSDtfsCounter, 4889 mSDsluCounter, 4078 mSDsCounter, 0 mSdLazyCounter, 3633 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4889 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 3776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 3633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:14,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4889 Valid, 5181 Invalid, 3776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 3633 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:59:14,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2021-12-17 16:59:14,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 1554. [2021-12-17 16:59:14,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1525 states have (on average 1.3350819672131147) internal successors, (2036), 1553 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2036 transitions. [2021-12-17 16:59:14,935 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2036 transitions. Word has length 116 [2021-12-17 16:59:14,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:14,935 INFO L470 AbstractCegarLoop]: Abstraction has 1554 states and 2036 transitions. [2021-12-17 16:59:14,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:14,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2036 transitions. [2021-12-17 16:59:14,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:59:14,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:14,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:14,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-12-17 16:59:14,937 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:14,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:14,937 INFO L85 PathProgramCache]: Analyzing trace with hash 698494103, now seen corresponding path program 1 times [2021-12-17 16:59:14,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:14,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494416113] [2021-12-17 16:59:14,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:14,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:15,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:15,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:15,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494416113] [2021-12-17 16:59:15,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494416113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:15,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:15,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:15,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599491422] [2021-12-17 16:59:15,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:15,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:15,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:15,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:15,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:15,051 INFO L87 Difference]: Start difference. First operand 1554 states and 2036 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:17,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:17,860 INFO L93 Difference]: Finished difference Result 2729 states and 3647 transitions. [2021-12-17 16:59:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:17,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:17,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:17,864 INFO L225 Difference]: With dead ends: 2729 [2021-12-17 16:59:17,864 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:59:17,865 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:59:17,865 INFO L933 BasicCegarLoop]: 1047 mSDtfsCounter, 5931 mSDsluCounter, 4095 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5931 SdHoareTripleChecker+Valid, 5142 SdHoareTripleChecker+Invalid, 4125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:17,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5931 Valid, 5142 Invalid, 4125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 3787 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:17,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:59:18,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1554. [2021-12-17 16:59:18,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1525 states have (on average 1.3344262295081968) internal successors, (2035), 1553 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:18,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2035 transitions. [2021-12-17 16:59:18,296 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2035 transitions. Word has length 116 [2021-12-17 16:59:18,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:18,296 INFO L470 AbstractCegarLoop]: Abstraction has 1554 states and 2035 transitions. [2021-12-17 16:59:18,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:18,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2035 transitions. [2021-12-17 16:59:18,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:59:18,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:18,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:18,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-12-17 16:59:18,299 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:18,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:18,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1842448692, now seen corresponding path program 1 times [2021-12-17 16:59:18,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:18,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012941000] [2021-12-17 16:59:18,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:18,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:18,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:18,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012941000] [2021-12-17 16:59:18,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012941000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:18,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:18,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:18,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466775205] [2021-12-17 16:59:18,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:18,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:18,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:18,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:18,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:18,402 INFO L87 Difference]: Start difference. First operand 1554 states and 2035 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:21,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:21,262 INFO L93 Difference]: Finished difference Result 2728 states and 3645 transitions. [2021-12-17 16:59:21,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:21,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:21,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:21,265 INFO L225 Difference]: With dead ends: 2728 [2021-12-17 16:59:21,265 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:59:21,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:21,266 INFO L933 BasicCegarLoop]: 1047 mSDtfsCounter, 5926 mSDsluCounter, 4095 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5926 SdHoareTripleChecker+Valid, 5142 SdHoareTripleChecker+Invalid, 4121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:21,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5926 Valid, 5142 Invalid, 4121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:59:21,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:59:21,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1554. [2021-12-17 16:59:21,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1525 states have (on average 1.3337704918032787) internal successors, (2034), 1553 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2034 transitions. [2021-12-17 16:59:21,695 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2034 transitions. Word has length 116 [2021-12-17 16:59:21,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:21,696 INFO L470 AbstractCegarLoop]: Abstraction has 1554 states and 2034 transitions. [2021-12-17 16:59:21,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2034 transitions. [2021-12-17 16:59:21,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:59:21,697 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:21,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:21,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-12-17 16:59:21,697 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:21,698 INFO L85 PathProgramCache]: Analyzing trace with hash -2091967031, now seen corresponding path program 1 times [2021-12-17 16:59:21,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:21,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51847741] [2021-12-17 16:59:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:21,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:21,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:21,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:21,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51847741] [2021-12-17 16:59:21,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51847741] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:21,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:21,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:21,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900550532] [2021-12-17 16:59:21,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:21,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:21,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:21,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:21,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:21,779 INFO L87 Difference]: Start difference. First operand 1554 states and 2034 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:24,260 INFO L93 Difference]: Finished difference Result 2847 states and 3818 transitions. [2021-12-17 16:59:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:24,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:24,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:24,262 INFO L225 Difference]: With dead ends: 2847 [2021-12-17 16:59:24,263 INFO L226 Difference]: Without dead ends: 2669 [2021-12-17 16:59:24,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:24,263 INFO L933 BasicCegarLoop]: 1103 mSDtfsCounter, 6181 mSDsluCounter, 3663 mSDsCounter, 0 mSdLazyCounter, 3336 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6181 SdHoareTripleChecker+Valid, 4766 SdHoareTripleChecker+Invalid, 3512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 3336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:24,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6181 Valid, 4766 Invalid, 3512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 3336 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:59:24,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2021-12-17 16:59:24,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 1554. [2021-12-17 16:59:24,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1525 states have (on average 1.3324590163934427) internal successors, (2032), 1553 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:24,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2032 transitions. [2021-12-17 16:59:24,687 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2032 transitions. Word has length 116 [2021-12-17 16:59:24,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:24,687 INFO L470 AbstractCegarLoop]: Abstraction has 1554 states and 2032 transitions. [2021-12-17 16:59:24,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:24,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2032 transitions. [2021-12-17 16:59:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:59:24,688 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:24,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:24,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-12-17 16:59:24,689 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:24,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:24,689 INFO L85 PathProgramCache]: Analyzing trace with hash -956364354, now seen corresponding path program 1 times [2021-12-17 16:59:24,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:24,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762236130] [2021-12-17 16:59:24,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:24,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:24,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:24,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:24,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762236130] [2021-12-17 16:59:24,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762236130] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:24,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:24,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:24,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824674980] [2021-12-17 16:59:24,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:24,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:24,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:24,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:24,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:24,776 INFO L87 Difference]: Start difference. First operand 1554 states and 2032 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:27,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:27,522 INFO L93 Difference]: Finished difference Result 2730 states and 3644 transitions. [2021-12-17 16:59:27,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:27,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:27,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:27,524 INFO L225 Difference]: With dead ends: 2730 [2021-12-17 16:59:27,525 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:59:27,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:27,525 INFO L933 BasicCegarLoop]: 1052 mSDtfsCounter, 5910 mSDsluCounter, 4110 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5910 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 4124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:27,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5910 Valid, 5162 Invalid, 4124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 3787 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:27,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:59:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1554. [2021-12-17 16:59:27,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1525 states have (on average 1.3311475409836067) internal successors, (2030), 1553 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2030 transitions. [2021-12-17 16:59:27,948 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2030 transitions. Word has length 116 [2021-12-17 16:59:27,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:27,949 INFO L470 AbstractCegarLoop]: Abstraction has 1554 states and 2030 transitions. [2021-12-17 16:59:27,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:27,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2030 transitions. [2021-12-17 16:59:27,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:59:27,950 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:27,950 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:27,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-12-17 16:59:27,950 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:27,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:27,950 INFO L85 PathProgramCache]: Analyzing trace with hash -822609803, now seen corresponding path program 1 times [2021-12-17 16:59:27,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:27,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752548241] [2021-12-17 16:59:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:27,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:28,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:28,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:28,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752548241] [2021-12-17 16:59:28,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752548241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:28,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:28,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:28,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747793630] [2021-12-17 16:59:28,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:28,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:28,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:28,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:28,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:28,045 INFO L87 Difference]: Start difference. First operand 1554 states and 2030 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:30,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:30,568 INFO L93 Difference]: Finished difference Result 2732 states and 3644 transitions. [2021-12-17 16:59:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:30,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:30,571 INFO L225 Difference]: With dead ends: 2732 [2021-12-17 16:59:30,571 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:59:30,571 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:59:30,571 INFO L933 BasicCegarLoop]: 1122 mSDtfsCounter, 3298 mSDsluCounter, 3391 mSDsCounter, 0 mSdLazyCounter, 3377 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3298 SdHoareTripleChecker+Valid, 4513 SdHoareTripleChecker+Invalid, 3580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 3377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:30,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3298 Valid, 4513 Invalid, 3580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 3377 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:59:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:59:30,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1546. [2021-12-17 16:59:30,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1517 states have (on average 1.3315754779169413) internal successors, (2020), 1545 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:30,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 2020 transitions. [2021-12-17 16:59:30,999 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 2020 transitions. Word has length 116 [2021-12-17 16:59:30,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:30,999 INFO L470 AbstractCegarLoop]: Abstraction has 1546 states and 2020 transitions. [2021-12-17 16:59:30,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:30,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 2020 transitions. [2021-12-17 16:59:31,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:59:31,000 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:31,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:31,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-12-17 16:59:31,001 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:31,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:31,001 INFO L85 PathProgramCache]: Analyzing trace with hash -581183163, now seen corresponding path program 1 times [2021-12-17 16:59:31,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:31,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611311708] [2021-12-17 16:59:31,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:31,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:31,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:31,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:31,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611311708] [2021-12-17 16:59:31,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611311708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:31,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:31,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:31,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236236930] [2021-12-17 16:59:31,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:31,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:31,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:31,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:31,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:31,093 INFO L87 Difference]: Start difference. First operand 1546 states and 2020 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:33,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:33,863 INFO L93 Difference]: Finished difference Result 2728 states and 3638 transitions. [2021-12-17 16:59:33,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:33,864 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-12-17 16:59:33,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:33,866 INFO L225 Difference]: With dead ends: 2728 [2021-12-17 16:59:33,866 INFO L226 Difference]: Without dead ends: 2562 [2021-12-17 16:59:33,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:33,867 INFO L933 BasicCegarLoop]: 1053 mSDtfsCounter, 5898 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5898 SdHoareTripleChecker+Valid, 5166 SdHoareTripleChecker+Invalid, 4124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:33,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5898 Valid, 5166 Invalid, 4124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 3787 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:33,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-17 16:59:34,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1546. [2021-12-17 16:59:34,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1517 states have (on average 1.3302570863546472) internal successors, (2018), 1545 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:34,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 2018 transitions. [2021-12-17 16:59:34,295 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 2018 transitions. Word has length 116 [2021-12-17 16:59:34,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:34,295 INFO L470 AbstractCegarLoop]: Abstraction has 1546 states and 2018 transitions. [2021-12-17 16:59:34,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:34,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 2018 transitions. [2021-12-17 16:59:34,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 16:59:34,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:34,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:34,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-12-17 16:59:34,297 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:34,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:34,297 INFO L85 PathProgramCache]: Analyzing trace with hash 159674476, now seen corresponding path program 1 times [2021-12-17 16:59:34,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:34,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080205372] [2021-12-17 16:59:34,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:34,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:34,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:34,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:34,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080205372] [2021-12-17 16:59:34,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080205372] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:34,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:34,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 16:59:34,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458062260] [2021-12-17 16:59:34,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:34,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:59:34,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:34,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:59:34,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:59:34,622 INFO L87 Difference]: Start difference. First operand 1546 states and 2018 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:36,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:36,226 INFO L93 Difference]: Finished difference Result 2431 states and 3299 transitions. [2021-12-17 16:59:36,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 16:59:36,226 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-12-17 16:59:36,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:36,228 INFO L225 Difference]: With dead ends: 2431 [2021-12-17 16:59:36,228 INFO L226 Difference]: Without dead ends: 2083 [2021-12-17 16:59:36,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 16:59:36,229 INFO L933 BasicCegarLoop]: 1472 mSDtfsCounter, 4921 mSDsluCounter, 6546 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4921 SdHoareTripleChecker+Valid, 8018 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:36,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4921 Valid, 8018 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 16:59:36,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2021-12-17 16:59:36,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1364. [2021-12-17 16:59:36,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1336 states have (on average 1.3285928143712575) internal successors, (1775), 1363 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:36,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1775 transitions. [2021-12-17 16:59:36,605 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1775 transitions. Word has length 117 [2021-12-17 16:59:36,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:36,605 INFO L470 AbstractCegarLoop]: Abstraction has 1364 states and 1775 transitions. [2021-12-17 16:59:36,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:36,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1775 transitions. [2021-12-17 16:59:36,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 16:59:36,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:36,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:36,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-12-17 16:59:36,606 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:36,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:36,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1983625940, now seen corresponding path program 1 times [2021-12-17 16:59:36,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:36,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211209724] [2021-12-17 16:59:36,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:36,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:36,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:36,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:36,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211209724] [2021-12-17 16:59:36,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211209724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:36,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:36,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 16:59:36,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977501710] [2021-12-17 16:59:36,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:36,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:59:36,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:36,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:59:36,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:59:36,909 INFO L87 Difference]: Start difference. First operand 1364 states and 1775 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:39,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:39,470 INFO L93 Difference]: Finished difference Result 2145 states and 2806 transitions. [2021-12-17 16:59:39,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 16:59:39,471 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-12-17 16:59:39,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:39,473 INFO L225 Difference]: With dead ends: 2145 [2021-12-17 16:59:39,473 INFO L226 Difference]: Without dead ends: 1975 [2021-12-17 16:59:39,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 16:59:39,473 INFO L933 BasicCegarLoop]: 967 mSDtfsCounter, 4696 mSDsluCounter, 5035 mSDsCounter, 0 mSdLazyCounter, 3367 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 6002 SdHoareTripleChecker+Invalid, 3644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 3367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:39,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4696 Valid, 6002 Invalid, 3644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 3367 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:39,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2021-12-17 16:59:39,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1360. [2021-12-17 16:59:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1333 states have (on average 1.3278319579894973) internal successors, (1770), 1359 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1770 transitions. [2021-12-17 16:59:39,855 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1770 transitions. Word has length 117 [2021-12-17 16:59:39,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:39,855 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 1770 transitions. [2021-12-17 16:59:39,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:39,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1770 transitions. [2021-12-17 16:59:39,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 16:59:39,856 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:39,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:39,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-12-17 16:59:39,856 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:39,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:39,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1062169606, now seen corresponding path program 1 times [2021-12-17 16:59:39,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:39,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149230798] [2021-12-17 16:59:39,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:39,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:40,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:40,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:40,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149230798] [2021-12-17 16:59:40,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149230798] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:40,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:40,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-12-17 16:59:40,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953555603] [2021-12-17 16:59:40,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:40,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-17 16:59:40,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:40,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-17 16:59:40,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-12-17 16:59:40,477 INFO L87 Difference]: Start difference. First operand 1360 states and 1770 transitions. Second operand has 20 states, 20 states have (on average 5.85) internal successors, (117), 20 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:44,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:44,291 INFO L93 Difference]: Finished difference Result 2413 states and 3244 transitions. [2021-12-17 16:59:44,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-17 16:59:44,291 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.85) internal successors, (117), 20 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-12-17 16:59:44,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:44,293 INFO L225 Difference]: With dead ends: 2413 [2021-12-17 16:59:44,293 INFO L226 Difference]: Without dead ends: 2038 [2021-12-17 16:59:44,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2021-12-17 16:59:44,294 INFO L933 BasicCegarLoop]: 1254 mSDtfsCounter, 5122 mSDsluCounter, 12585 mSDsCounter, 0 mSdLazyCounter, 4251 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5122 SdHoareTripleChecker+Valid, 13839 SdHoareTripleChecker+Invalid, 4384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 4251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:44,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5122 Valid, 13839 Invalid, 4384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 4251 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 16:59:44,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2021-12-17 16:59:44,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 1366. [2021-12-17 16:59:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1339 states have (on average 1.3263629574309186) internal successors, (1776), 1365 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1776 transitions. [2021-12-17 16:59:44,687 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1776 transitions. Word has length 117 [2021-12-17 16:59:44,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:44,687 INFO L470 AbstractCegarLoop]: Abstraction has 1366 states and 1776 transitions. [2021-12-17 16:59:44,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.85) internal successors, (117), 20 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:44,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1776 transitions. [2021-12-17 16:59:44,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 16:59:44,688 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:44,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:44,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-12-17 16:59:44,688 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:44,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:44,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1596743316, now seen corresponding path program 1 times [2021-12-17 16:59:44,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:44,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976426153] [2021-12-17 16:59:44,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:44,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:44,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:44,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976426153] [2021-12-17 16:59:44,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976426153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:44,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:44,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 16:59:44,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228338711] [2021-12-17 16:59:44,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:44,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:59:44,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:44,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:59:44,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:59:44,924 INFO L87 Difference]: Start difference. First operand 1366 states and 1776 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:46,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:46,293 INFO L93 Difference]: Finished difference Result 2434 states and 3278 transitions. [2021-12-17 16:59:46,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 16:59:46,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-12-17 16:59:46,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:46,296 INFO L225 Difference]: With dead ends: 2434 [2021-12-17 16:59:46,296 INFO L226 Difference]: Without dead ends: 1876 [2021-12-17 16:59:46,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:46,297 INFO L933 BasicCegarLoop]: 1365 mSDtfsCounter, 4460 mSDsluCounter, 5740 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4460 SdHoareTripleChecker+Valid, 7105 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:46,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4460 Valid, 7105 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:59:46,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2021-12-17 16:59:46,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 974. [2021-12-17 16:59:46,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 953 states have (on average 1.3273871983210912) internal successors, (1265), 973 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:46,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1265 transitions. [2021-12-17 16:59:46,645 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1265 transitions. Word has length 117 [2021-12-17 16:59:46,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:46,645 INFO L470 AbstractCegarLoop]: Abstraction has 974 states and 1265 transitions. [2021-12-17 16:59:46,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:46,645 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1265 transitions. [2021-12-17 16:59:46,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 16:59:46,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:46,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:46,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-12-17 16:59:46,646 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:46,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:46,646 INFO L85 PathProgramCache]: Analyzing trace with hash 186174220, now seen corresponding path program 1 times [2021-12-17 16:59:46,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:46,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126527432] [2021-12-17 16:59:46,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:46,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:46,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:46,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126527432] [2021-12-17 16:59:46,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126527432] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:46,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:46,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 16:59:46,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448683783] [2021-12-17 16:59:46,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:46,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:59:46,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:46,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:59:46,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:59:46,934 INFO L87 Difference]: Start difference. First operand 974 states and 1265 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:48,961 INFO L93 Difference]: Finished difference Result 1603 states and 2116 transitions. [2021-12-17 16:59:48,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 16:59:48,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-12-17 16:59:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:48,963 INFO L225 Difference]: With dead ends: 1603 [2021-12-17 16:59:48,963 INFO L226 Difference]: Without dead ends: 1431 [2021-12-17 16:59:48,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 16:59:48,963 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 3561 mSDsluCounter, 3923 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3561 SdHoareTripleChecker+Valid, 4655 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:48,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3561 Valid, 4655 Invalid, 2495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 16:59:48,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2021-12-17 16:59:49,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 962. [2021-12-17 16:59:49,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 942 states have (on average 1.3248407643312101) internal successors, (1248), 961 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:49,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1248 transitions. [2021-12-17 16:59:49,314 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1248 transitions. Word has length 117 [2021-12-17 16:59:49,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:49,315 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1248 transitions. [2021-12-17 16:59:49,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1248 transitions. [2021-12-17 16:59:49,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 16:59:49,316 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:49,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:49,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-12-17 16:59:49,316 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:49,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:49,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1594342928, now seen corresponding path program 1 times [2021-12-17 16:59:49,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:49,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461833560] [2021-12-17 16:59:49,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:49,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:50,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:50,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461833560] [2021-12-17 16:59:50,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461833560] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:50,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:50,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-12-17 16:59:50,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824940898] [2021-12-17 16:59:50,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:50,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-12-17 16:59:50,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:50,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-12-17 16:59:50,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1160, Unknown=0, NotChecked=0, Total=1260 [2021-12-17 16:59:50,449 INFO L87 Difference]: Start difference. First operand 962 states and 1248 transitions. Second operand has 36 states, 36 states have (on average 3.25) internal successors, (117), 36 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:03,153 INFO L93 Difference]: Finished difference Result 2527 states and 3400 transitions. [2021-12-17 17:00:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-12-17 17:00:03,154 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.25) internal successors, (117), 36 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-12-17 17:00:03,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:03,156 INFO L225 Difference]: With dead ends: 2527 [2021-12-17 17:00:03,156 INFO L226 Difference]: Without dead ends: 2354 [2021-12-17 17:00:03,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=657, Invalid=4035, Unknown=0, NotChecked=0, Total=4692 [2021-12-17 17:00:03,157 INFO L933 BasicCegarLoop]: 1638 mSDtfsCounter, 6025 mSDsluCounter, 29813 mSDsCounter, 0 mSdLazyCounter, 19411 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6025 SdHoareTripleChecker+Valid, 31451 SdHoareTripleChecker+Invalid, 19591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 19411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:03,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6025 Valid, 31451 Invalid, 19591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [180 Valid, 19411 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2021-12-17 17:00:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2021-12-17 17:00:03,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 986. [2021-12-17 17:00:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 966 states have (on average 1.3229813664596273) internal successors, (1278), 985 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:03,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1278 transitions. [2021-12-17 17:00:03,500 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1278 transitions. Word has length 117 [2021-12-17 17:00:03,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:03,500 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1278 transitions. [2021-12-17 17:00:03,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.25) internal successors, (117), 36 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:03,500 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1278 transitions. [2021-12-17 17:00:03,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:00:03,501 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:03,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:03,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-12-17 17:00:03,501 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:03,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:03,501 INFO L85 PathProgramCache]: Analyzing trace with hash 244543956, now seen corresponding path program 1 times [2021-12-17 17:00:03,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:03,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865194819] [2021-12-17 17:00:03,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:03,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:03,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:03,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:03,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865194819] [2021-12-17 17:00:03,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865194819] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:03,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:03,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:00:03,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712361803] [2021-12-17 17:00:03,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:03,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:00:03,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:03,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:00:03,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:00:03,797 INFO L87 Difference]: Start difference. First operand 986 states and 1278 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:08,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:08,065 INFO L93 Difference]: Finished difference Result 3783 states and 5251 transitions. [2021-12-17 17:00:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 17:00:08,066 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-12-17 17:00:08,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:08,069 INFO L225 Difference]: With dead ends: 3783 [2021-12-17 17:00:08,069 INFO L226 Difference]: Without dead ends: 3595 [2021-12-17 17:00:08,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-17 17:00:08,070 INFO L933 BasicCegarLoop]: 1929 mSDtfsCounter, 5535 mSDsluCounter, 9446 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5535 SdHoareTripleChecker+Valid, 11375 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:08,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5535 Valid, 11375 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 17:00:08,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2021-12-17 17:00:08,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 964. [2021-12-17 17:00:08,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 946 states have (on average 1.3192389006342495) internal successors, (1248), 963 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:08,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1248 transitions. [2021-12-17 17:00:08,438 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1248 transitions. Word has length 117 [2021-12-17 17:00:08,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:08,438 INFO L470 AbstractCegarLoop]: Abstraction has 964 states and 1248 transitions. [2021-12-17 17:00:08,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:08,438 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1248 transitions. [2021-12-17 17:00:08,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:00:08,439 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:08,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:08,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-12-17 17:00:08,439 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:08,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:08,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1596485657, now seen corresponding path program 1 times [2021-12-17 17:00:08,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:08,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265996025] [2021-12-17 17:00:08,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:08,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:08,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:08,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265996025] [2021-12-17 17:00:08,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265996025] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:08,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:08,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:00:08,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822630892] [2021-12-17 17:00:08,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:08,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:00:08,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:08,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:00:08,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:00:08,680 INFO L87 Difference]: Start difference. First operand 964 states and 1248 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:11,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:11,792 INFO L93 Difference]: Finished difference Result 3333 states and 4631 transitions. [2021-12-17 17:00:11,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 17:00:11,792 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-12-17 17:00:11,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:11,796 INFO L225 Difference]: With dead ends: 3333 [2021-12-17 17:00:11,796 INFO L226 Difference]: Without dead ends: 3055 [2021-12-17 17:00:11,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-17 17:00:11,797 INFO L933 BasicCegarLoop]: 1894 mSDtfsCounter, 4330 mSDsluCounter, 10573 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4330 SdHoareTripleChecker+Valid, 12467 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:11,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4330 Valid, 12467 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 17:00:11,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2021-12-17 17:00:12,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 852. [2021-12-17 17:00:12,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 838 states have (on average 1.3150357995226731) internal successors, (1102), 851 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1102 transitions. [2021-12-17 17:00:12,206 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1102 transitions. Word has length 117 [2021-12-17 17:00:12,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:12,206 INFO L470 AbstractCegarLoop]: Abstraction has 852 states and 1102 transitions. [2021-12-17 17:00:12,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:12,206 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1102 transitions. [2021-12-17 17:00:12,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:00:12,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:12,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:12,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-12-17 17:00:12,207 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:12,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:12,207 INFO L85 PathProgramCache]: Analyzing trace with hash -526119604, now seen corresponding path program 1 times [2021-12-17 17:00:12,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:12,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706026199] [2021-12-17 17:00:12,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:12,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:12,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:12,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706026199] [2021-12-17 17:00:12,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706026199] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:12,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:12,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:00:12,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115891347] [2021-12-17 17:00:12,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:12,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:00:12,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:12,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:00:12,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:00:12,473 INFO L87 Difference]: Start difference. First operand 852 states and 1102 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:14,612 INFO L93 Difference]: Finished difference Result 2295 states and 3155 transitions. [2021-12-17 17:00:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:00:14,612 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-12-17 17:00:14,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:14,614 INFO L225 Difference]: With dead ends: 2295 [2021-12-17 17:00:14,614 INFO L226 Difference]: Without dead ends: 1911 [2021-12-17 17:00:14,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 17:00:14,615 INFO L933 BasicCegarLoop]: 1248 mSDtfsCounter, 3775 mSDsluCounter, 4544 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3775 SdHoareTripleChecker+Valid, 5792 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:14,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3775 Valid, 5792 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:00:14,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2021-12-17 17:00:14,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 634. [2021-12-17 17:00:14,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 625 states have (on average 1.3072) internal successors, (817), 633 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:14,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 817 transitions. [2021-12-17 17:00:14,944 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 817 transitions. Word has length 117 [2021-12-17 17:00:14,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:14,944 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 817 transitions. [2021-12-17 17:00:14,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:14,944 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 817 transitions. [2021-12-17 17:00:14,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:00:14,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:14,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:14,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-12-17 17:00:14,945 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:14,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:14,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1136195896, now seen corresponding path program 1 times [2021-12-17 17:00:14,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:14,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440685656] [2021-12-17 17:00:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:14,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:15,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:15,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:15,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440685656] [2021-12-17 17:00:15,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440685656] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:15,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:15,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-12-17 17:00:15,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647870903] [2021-12-17 17:00:15,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:15,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-17 17:00:15,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:15,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-17 17:00:15,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2021-12-17 17:00:15,876 INFO L87 Difference]: Start difference. First operand 634 states and 817 transitions. Second operand has 24 states, 24 states have (on average 4.916666666666667) internal successors, (118), 24 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:21,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:21,615 INFO L93 Difference]: Finished difference Result 2022 states and 2734 transitions. [2021-12-17 17:00:21,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-17 17:00:21,616 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.916666666666667) internal successors, (118), 24 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 17:00:21,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:21,617 INFO L225 Difference]: With dead ends: 2022 [2021-12-17 17:00:21,617 INFO L226 Difference]: Without dead ends: 1845 [2021-12-17 17:00:21,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=352, Invalid=1810, Unknown=0, NotChecked=0, Total=2162 [2021-12-17 17:00:21,618 INFO L933 BasicCegarLoop]: 1197 mSDtfsCounter, 4317 mSDsluCounter, 17878 mSDsCounter, 0 mSdLazyCounter, 6138 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4317 SdHoareTripleChecker+Valid, 19075 SdHoareTripleChecker+Invalid, 6237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 6138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:21,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4317 Valid, 19075 Invalid, 6237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 6138 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-17 17:00:21,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2021-12-17 17:00:21,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 650. [2021-12-17 17:00:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 641 states have (on average 1.3042121684867394) internal successors, (836), 649 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:21,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 836 transitions. [2021-12-17 17:00:21,946 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 836 transitions. Word has length 118 [2021-12-17 17:00:21,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:21,947 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 836 transitions. [2021-12-17 17:00:21,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.916666666666667) internal successors, (118), 24 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:21,947 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 836 transitions. [2021-12-17 17:00:21,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:00:21,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:21,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:21,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-12-17 17:00:21,948 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:21,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:21,948 INFO L85 PathProgramCache]: Analyzing trace with hash 156241994, now seen corresponding path program 1 times [2021-12-17 17:00:21,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:21,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252947934] [2021-12-17 17:00:21,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:21,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:22,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:22,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:22,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252947934] [2021-12-17 17:00:22,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252947934] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:22,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:22,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:00:22,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228581253] [2021-12-17 17:00:22,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:22,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:00:22,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:22,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:00:22,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:00:22,232 INFO L87 Difference]: Start difference. First operand 650 states and 836 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:25,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:25,436 INFO L93 Difference]: Finished difference Result 2743 states and 3865 transitions. [2021-12-17 17:00:25,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 17:00:25,437 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 17:00:25,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:25,439 INFO L225 Difference]: With dead ends: 2743 [2021-12-17 17:00:25,439 INFO L226 Difference]: Without dead ends: 2553 [2021-12-17 17:00:25,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-17 17:00:25,440 INFO L933 BasicCegarLoop]: 1482 mSDtfsCounter, 3363 mSDsluCounter, 9395 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3363 SdHoareTripleChecker+Valid, 10877 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:25,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3363 Valid, 10877 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 17:00:25,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2021-12-17 17:00:25,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 626. [2021-12-17 17:00:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 618 states have (on average 1.302588996763754) internal successors, (805), 625 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 805 transitions. [2021-12-17 17:00:25,789 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 805 transitions. Word has length 118 [2021-12-17 17:00:25,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:25,789 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 805 transitions. [2021-12-17 17:00:25,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 805 transitions. [2021-12-17 17:00:25,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:00:25,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:25,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:25,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-12-17 17:00:25,790 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:25,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:25,790 INFO L85 PathProgramCache]: Analyzing trace with hash -707930189, now seen corresponding path program 1 times [2021-12-17 17:00:25,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:25,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891197920] [2021-12-17 17:00:25,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:25,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:26,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:26,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:26,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891197920] [2021-12-17 17:00:26,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891197920] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:26,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:26,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-17 17:00:26,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823756860] [2021-12-17 17:00:26,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:26,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-17 17:00:26,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:26,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-17 17:00:26,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-12-17 17:00:26,418 INFO L87 Difference]: Start difference. First operand 626 states and 805 transitions. Second operand has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 17 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:29,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:29,715 INFO L93 Difference]: Finished difference Result 2011 states and 2783 transitions. [2021-12-17 17:00:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-17 17:00:29,716 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 17 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 17:00:29,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:29,718 INFO L225 Difference]: With dead ends: 2011 [2021-12-17 17:00:29,718 INFO L226 Difference]: Without dead ends: 1801 [2021-12-17 17:00:29,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=244, Invalid=878, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:00:29,718 INFO L933 BasicCegarLoop]: 990 mSDtfsCounter, 3600 mSDsluCounter, 7274 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3600 SdHoareTripleChecker+Valid, 8264 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:29,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3600 Valid, 8264 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1533 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 17:00:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2021-12-17 17:00:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 608. [2021-12-17 17:00:30,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 600 states have (on average 1.2983333333333333) internal successors, (779), 607 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 779 transitions. [2021-12-17 17:00:30,054 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 779 transitions. Word has length 118 [2021-12-17 17:00:30,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:30,054 INFO L470 AbstractCegarLoop]: Abstraction has 608 states and 779 transitions. [2021-12-17 17:00:30,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 17 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:30,054 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 779 transitions. [2021-12-17 17:00:30,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:00:30,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:30,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:30,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-12-17 17:00:30,056 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:30,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:30,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1269081130, now seen corresponding path program 1 times [2021-12-17 17:00:30,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:30,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572491185] [2021-12-17 17:00:30,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:30,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:30,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:30,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:30,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572491185] [2021-12-17 17:00:30,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572491185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:30,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:30,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:00:30,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977943341] [2021-12-17 17:00:30,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:30,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:00:30,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:30,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:00:30,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:00:30,283 INFO L87 Difference]: Start difference. First operand 608 states and 779 transitions. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:32,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:32,206 INFO L93 Difference]: Finished difference Result 1862 states and 2590 transitions. [2021-12-17 17:00:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:00:32,207 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 17:00:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:32,209 INFO L225 Difference]: With dead ends: 1862 [2021-12-17 17:00:32,209 INFO L226 Difference]: Without dead ends: 1602 [2021-12-17 17:00:32,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:00:32,209 INFO L933 BasicCegarLoop]: 960 mSDtfsCounter, 2195 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2195 SdHoareTripleChecker+Valid, 3745 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:32,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2195 Valid, 3745 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 17:00:32,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2021-12-17 17:00:32,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 513. [2021-12-17 17:00:32,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 506 states have (on average 1.290513833992095) internal successors, (653), 512 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:32,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 653 transitions. [2021-12-17 17:00:32,512 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 653 transitions. Word has length 118 [2021-12-17 17:00:32,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:32,512 INFO L470 AbstractCegarLoop]: Abstraction has 513 states and 653 transitions. [2021-12-17 17:00:32,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:32,512 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 653 transitions. [2021-12-17 17:00:32,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:00:32,513 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:32,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:32,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-12-17 17:00:32,513 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:32,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:32,513 INFO L85 PathProgramCache]: Analyzing trace with hash 690497481, now seen corresponding path program 1 times [2021-12-17 17:00:32,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:32,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565090882] [2021-12-17 17:00:32,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:32,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:32,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:32,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:32,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565090882] [2021-12-17 17:00:32,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565090882] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:32,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:32,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:00:32,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520310721] [2021-12-17 17:00:32,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:32,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:00:32,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:32,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:00:32,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:00:32,750 INFO L87 Difference]: Start difference. First operand 513 states and 653 transitions. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:34,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:34,730 INFO L93 Difference]: Finished difference Result 1588 states and 2241 transitions. [2021-12-17 17:00:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:00:34,730 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 17:00:34,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:34,732 INFO L225 Difference]: With dead ends: 1588 [2021-12-17 17:00:34,732 INFO L226 Difference]: Without dead ends: 1421 [2021-12-17 17:00:34,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 17:00:34,732 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 3266 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:34,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3266 Valid, 2950 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:00:34,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2021-12-17 17:00:35,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 512. [2021-12-17 17:00:35,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 505 states have (on average 1.2891089108910891) internal successors, (651), 511 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 651 transitions. [2021-12-17 17:00:35,035 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 651 transitions. Word has length 118 [2021-12-17 17:00:35,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:35,035 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 651 transitions. [2021-12-17 17:00:35,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 651 transitions. [2021-12-17 17:00:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:00:35,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:35,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:35,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-12-17 17:00:35,036 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:35,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash 159152083, now seen corresponding path program 1 times [2021-12-17 17:00:35,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:35,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088637453] [2021-12-17 17:00:35,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:35,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:35,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:35,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088637453] [2021-12-17 17:00:35,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088637453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:35,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:35,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-17 17:00:35,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408240509] [2021-12-17 17:00:35,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:35,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-17 17:00:35,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:35,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-17 17:00:35,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:00:35,360 INFO L87 Difference]: Start difference. First operand 512 states and 651 transitions. Second operand has 15 states, 15 states have (on average 7.866666666666666) internal successors, (118), 15 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:37,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:37,281 INFO L93 Difference]: Finished difference Result 1242 states and 1703 transitions. [2021-12-17 17:00:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 17:00:37,282 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.866666666666666) internal successors, (118), 15 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 17:00:37,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:37,283 INFO L225 Difference]: With dead ends: 1242 [2021-12-17 17:00:37,283 INFO L226 Difference]: Without dead ends: 998 [2021-12-17 17:00:37,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=740, Unknown=0, NotChecked=0, Total=992 [2021-12-17 17:00:37,283 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 2341 mSDsluCounter, 3684 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2341 SdHoareTripleChecker+Valid, 4228 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:37,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2341 Valid, 4228 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 17:00:37,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2021-12-17 17:00:37,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 507. [2021-12-17 17:00:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 500 states have (on average 1.29) internal successors, (645), 506 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:37,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 645 transitions. [2021-12-17 17:00:37,588 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 645 transitions. Word has length 118 [2021-12-17 17:00:37,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:37,588 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 645 transitions. [2021-12-17 17:00:37,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.866666666666666) internal successors, (118), 15 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:37,588 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 645 transitions. [2021-12-17 17:00:37,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:00:37,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:37,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:37,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-12-17 17:00:37,589 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:37,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:37,589 INFO L85 PathProgramCache]: Analyzing trace with hash 718330925, now seen corresponding path program 1 times [2021-12-17 17:00:37,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:37,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032511738] [2021-12-17 17:00:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:37,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:38,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:38,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032511738] [2021-12-17 17:00:38,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032511738] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:38,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:38,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-12-17 17:00:38,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78943477] [2021-12-17 17:00:38,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:38,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-17 17:00:38,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:38,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-17 17:00:38,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-12-17 17:00:38,587 INFO L87 Difference]: Start difference. First operand 507 states and 645 transitions. Second operand has 23 states, 23 states have (on average 5.130434782608695) internal successors, (118), 23 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:46,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:46,450 INFO L93 Difference]: Finished difference Result 2687 states and 3789 transitions. [2021-12-17 17:00:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-12-17 17:00:46,450 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.130434782608695) internal successors, (118), 23 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 17:00:46,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:46,453 INFO L225 Difference]: With dead ends: 2687 [2021-12-17 17:00:46,453 INFO L226 Difference]: Without dead ends: 2509 [2021-12-17 17:00:46,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=603, Invalid=2477, Unknown=0, NotChecked=0, Total=3080 [2021-12-17 17:00:46,454 INFO L933 BasicCegarLoop]: 701 mSDtfsCounter, 4272 mSDsluCounter, 10143 mSDsCounter, 0 mSdLazyCounter, 4232 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4272 SdHoareTripleChecker+Valid, 10844 SdHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 4232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:46,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4272 Valid, 10844 Invalid, 4411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 4232 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:00:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2021-12-17 17:00:46,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 481. [2021-12-17 17:00:46,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 474 states have (on average 1.2848101265822784) internal successors, (609), 480 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:46,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 609 transitions. [2021-12-17 17:00:46,800 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 609 transitions. Word has length 118 [2021-12-17 17:00:46,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:46,800 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 609 transitions. [2021-12-17 17:00:46,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.130434782608695) internal successors, (118), 23 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:46,800 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 609 transitions. [2021-12-17 17:00:46,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:00:46,800 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:46,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:46,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-12-17 17:00:46,801 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:46,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:46,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2103022717, now seen corresponding path program 1 times [2021-12-17 17:00:46,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:46,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806961812] [2021-12-17 17:00:46,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:46,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:46,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:46,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:46,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806961812] [2021-12-17 17:00:46,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806961812] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:46,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:46,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:46,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550548656] [2021-12-17 17:00:46,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:46,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:46,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:46,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:46,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:46,893 INFO L87 Difference]: Start difference. First operand 481 states and 609 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:47,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:47,877 INFO L93 Difference]: Finished difference Result 731 states and 951 transitions. [2021-12-17 17:00:47,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 17:00:47,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 17:00:47,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:47,879 INFO L225 Difference]: With dead ends: 731 [2021-12-17 17:00:47,879 INFO L226 Difference]: Without dead ends: 724 [2021-12-17 17:00:47,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-12-17 17:00:47,879 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 1533 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:47,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1533 Valid, 1027 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:00:47,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-12-17 17:00:48,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 481. [2021-12-17 17:00:48,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 474 states have (on average 1.2827004219409284) internal successors, (608), 480 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:48,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 608 transitions. [2021-12-17 17:00:48,207 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 608 transitions. Word has length 118 [2021-12-17 17:00:48,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:48,207 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 608 transitions. [2021-12-17 17:00:48,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 608 transitions. [2021-12-17 17:00:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:00:48,208 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:48,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:48,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-12-17 17:00:48,208 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:48,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:48,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1652533767, now seen corresponding path program 1 times [2021-12-17 17:00:48,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:48,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894071469] [2021-12-17 17:00:48,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:48,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:48,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:48,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:48,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894071469] [2021-12-17 17:00:48,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894071469] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:48,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:48,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:00:48,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727862024] [2021-12-17 17:00:48,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:48,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:00:48,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:48,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:00:48,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:00:48,458 INFO L87 Difference]: Start difference. First operand 481 states and 608 transitions. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:49,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:49,613 INFO L93 Difference]: Finished difference Result 901 states and 1209 transitions. [2021-12-17 17:00:49,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 17:00:49,613 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 17:00:49,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:49,614 INFO L225 Difference]: With dead ends: 901 [2021-12-17 17:00:49,614 INFO L226 Difference]: Without dead ends: 717 [2021-12-17 17:00:49,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:00:49,615 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 1567 mSDsluCounter, 2783 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:49,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1567 Valid, 3271 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:00:49,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2021-12-17 17:00:49,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 459. [2021-12-17 17:00:49,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 453 states have (on average 1.2847682119205297) internal successors, (582), 458 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 582 transitions. [2021-12-17 17:00:49,941 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 582 transitions. Word has length 118 [2021-12-17 17:00:49,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:49,941 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 582 transitions. [2021-12-17 17:00:49,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:49,942 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 582 transitions. [2021-12-17 17:00:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:00:49,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:49,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:49,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-12-17 17:00:49,942 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:49,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1119350499, now seen corresponding path program 1 times [2021-12-17 17:00:49,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:49,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20719690] [2021-12-17 17:00:49,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:49,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:50,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:50,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20719690] [2021-12-17 17:00:50,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20719690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:50,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:50,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:50,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458536704] [2021-12-17 17:00:50,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:50,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:50,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:50,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:50,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:50,041 INFO L87 Difference]: Start difference. First operand 459 states and 582 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:51,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:51,785 INFO L93 Difference]: Finished difference Result 1235 states and 1712 transitions. [2021-12-17 17:00:51,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:51,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-17 17:00:51,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:51,787 INFO L225 Difference]: With dead ends: 1235 [2021-12-17 17:00:51,787 INFO L226 Difference]: Without dead ends: 1039 [2021-12-17 17:00:51,787 INFO L932 BasicCegarLoop]: 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 [2021-12-17 17:00:51,788 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1127 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:51,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1127 Valid, 1499 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 17:00:51,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2021-12-17 17:00:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 459. [2021-12-17 17:00:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 453 states have (on average 1.2803532008830023) internal successors, (580), 458 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:52,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 580 transitions. [2021-12-17 17:00:52,127 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 580 transitions. Word has length 118 [2021-12-17 17:00:52,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:52,127 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 580 transitions. [2021-12-17 17:00:52,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:52,128 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 580 transitions. [2021-12-17 17:00:52,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:00:52,128 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:52,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:52,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-12-17 17:00:52,128 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:52,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:52,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1647465838, now seen corresponding path program 1 times [2021-12-17 17:00:52,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:52,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449358710] [2021-12-17 17:00:52,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:52,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:52,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:52,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449358710] [2021-12-17 17:00:52,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449358710] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:52,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:52,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:52,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073985278] [2021-12-17 17:00:52,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:52,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:52,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:52,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:52,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:52,229 INFO L87 Difference]: Start difference. First operand 459 states and 580 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:53,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:53,283 INFO L93 Difference]: Finished difference Result 709 states and 921 transitions. [2021-12-17 17:00:53,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 17:00:53,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-12-17 17:00:53,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:53,285 INFO L225 Difference]: With dead ends: 709 [2021-12-17 17:00:53,285 INFO L226 Difference]: Without dead ends: 702 [2021-12-17 17:00:53,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-12-17 17:00:53,285 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 1451 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:53,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1451 Valid, 1055 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:00:53,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-12-17 17:00:53,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 459. [2021-12-17 17:00:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 453 states have (on average 1.2781456953642385) internal successors, (579), 458 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:53,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 579 transitions. [2021-12-17 17:00:53,614 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 579 transitions. Word has length 119 [2021-12-17 17:00:53,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:53,614 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 579 transitions. [2021-12-17 17:00:53,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:53,615 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 579 transitions. [2021-12-17 17:00:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:00:53,615 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:53,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:53,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-12-17 17:00:53,615 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:53,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:53,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1242831516, now seen corresponding path program 1 times [2021-12-17 17:00:53,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:53,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385859080] [2021-12-17 17:00:53,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:53,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:54,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:54,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:54,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385859080] [2021-12-17 17:00:54,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385859080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:54,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:54,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-17 17:00:54,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911578734] [2021-12-17 17:00:54,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:54,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-17 17:00:54,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:54,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-17 17:00:54,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-12-17 17:00:54,032 INFO L87 Difference]: Start difference. First operand 459 states and 579 transitions. Second operand has 17 states, 17 states have (on average 7.0) internal successors, (119), 17 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:56,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:56,481 INFO L93 Difference]: Finished difference Result 1384 states and 1872 transitions. [2021-12-17 17:00:56,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-17 17:00:56,481 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.0) internal successors, (119), 17 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-12-17 17:00:56,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:56,482 INFO L225 Difference]: With dead ends: 1384 [2021-12-17 17:00:56,482 INFO L226 Difference]: Without dead ends: 1208 [2021-12-17 17:00:56,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2021-12-17 17:00:56,483 INFO L933 BasicCegarLoop]: 494 mSDtfsCounter, 2842 mSDsluCounter, 4593 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2842 SdHoareTripleChecker+Valid, 5087 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:56,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2842 Valid, 5087 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 17:00:56,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2021-12-17 17:00:56,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 459. [2021-12-17 17:00:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 453 states have (on average 1.2781456953642385) internal successors, (579), 458 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:56,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 579 transitions. [2021-12-17 17:00:56,817 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 579 transitions. Word has length 119 [2021-12-17 17:00:56,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:56,817 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 579 transitions. [2021-12-17 17:00:56,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.0) internal successors, (119), 17 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:56,817 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 579 transitions. [2021-12-17 17:00:56,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:00:56,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:56,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:56,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-12-17 17:00:56,818 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:56,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:56,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2137960749, now seen corresponding path program 1 times [2021-12-17 17:00:56,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:56,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896284564] [2021-12-17 17:00:56,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:56,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:57,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:57,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:57,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896284564] [2021-12-17 17:00:57,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896284564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:57,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:57,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-17 17:00:57,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534830480] [2021-12-17 17:00:57,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:57,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-17 17:00:57,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:57,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-17 17:00:57,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2021-12-17 17:00:57,242 INFO L87 Difference]: Start difference. First operand 459 states and 579 transitions. Second operand has 17 states, 17 states have (on average 7.0) internal successors, (119), 17 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:01,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:01,239 INFO L93 Difference]: Finished difference Result 2370 states and 3359 transitions. [2021-12-17 17:01:01,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-17 17:01:01,239 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.0) internal successors, (119), 17 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-12-17 17:01:01,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:01,241 INFO L225 Difference]: With dead ends: 2370 [2021-12-17 17:01:01,242 INFO L226 Difference]: Without dead ends: 2197 [2021-12-17 17:01:01,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2021-12-17 17:01:01,242 INFO L933 BasicCegarLoop]: 604 mSDtfsCounter, 2527 mSDsluCounter, 6853 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 7457 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:01,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2527 Valid, 7457 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 17:01:01,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2021-12-17 17:01:01,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 452. [2021-12-17 17:01:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 446 states have (on average 1.2757847533632287) internal successors, (569), 451 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:01,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 569 transitions. [2021-12-17 17:01:01,585 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 569 transitions. Word has length 119 [2021-12-17 17:01:01,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:01,586 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 569 transitions. [2021-12-17 17:01:01,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.0) internal successors, (119), 17 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:01,586 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 569 transitions. [2021-12-17 17:01:01,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:01:01,586 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:01,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:01,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-12-17 17:01:01,587 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:01,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:01,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1526008542, now seen corresponding path program 1 times [2021-12-17 17:01:01,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:01,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429223744] [2021-12-17 17:01:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:01,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:01,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:01,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:01,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429223744] [2021-12-17 17:01:01,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429223744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:01,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:01,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:01:01,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526731601] [2021-12-17 17:01:01,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:01,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:01:01,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:01,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:01:01,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:01:01,828 INFO L87 Difference]: Start difference. First operand 452 states and 569 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:05,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:05,015 INFO L93 Difference]: Finished difference Result 2452 states and 3459 transitions. [2021-12-17 17:01:05,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 17:01:05,015 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-12-17 17:01:05,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:05,017 INFO L225 Difference]: With dead ends: 2452 [2021-12-17 17:01:05,017 INFO L226 Difference]: Without dead ends: 2263 [2021-12-17 17:01:05,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-17 17:01:05,018 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 2412 mSDsluCounter, 5990 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 6807 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:05,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2412 Valid, 6807 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:01:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2021-12-17 17:01:05,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 429. [2021-12-17 17:01:05,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.278301886792453) internal successors, (542), 428 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:05,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 542 transitions. [2021-12-17 17:01:05,357 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 542 transitions. Word has length 119 [2021-12-17 17:01:05,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:05,357 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 542 transitions. [2021-12-17 17:01:05,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:05,357 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 542 transitions. [2021-12-17 17:01:05,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:01:05,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:05,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:05,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-12-17 17:01:05,358 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:05,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:05,358 INFO L85 PathProgramCache]: Analyzing trace with hash -55592427, now seen corresponding path program 1 times [2021-12-17 17:01:05,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:05,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101390787] [2021-12-17 17:01:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:05,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:05,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:05,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:05,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101390787] [2021-12-17 17:01:05,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101390787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:05,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:05,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:01:05,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320796724] [2021-12-17 17:01:05,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:05,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:01:05,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:05,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:01:05,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:01:05,630 INFO L87 Difference]: Start difference. First operand 429 states and 542 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:07,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:07,633 INFO L93 Difference]: Finished difference Result 1263 states and 1730 transitions. [2021-12-17 17:01:07,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-17 17:01:07,634 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-12-17 17:01:07,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:07,635 INFO L225 Difference]: With dead ends: 1263 [2021-12-17 17:01:07,635 INFO L226 Difference]: Without dead ends: 1087 [2021-12-17 17:01:07,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-17 17:01:07,636 INFO L933 BasicCegarLoop]: 765 mSDtfsCounter, 1581 mSDsluCounter, 4771 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:07,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1581 Valid, 5536 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:01:07,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2021-12-17 17:01:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 403. [2021-12-17 17:01:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 399 states have (on average 1.280701754385965) internal successors, (511), 402 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 511 transitions. [2021-12-17 17:01:07,965 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 511 transitions. Word has length 119 [2021-12-17 17:01:07,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:07,965 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 511 transitions. [2021-12-17 17:01:07,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:07,966 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 511 transitions. [2021-12-17 17:01:07,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 17:01:07,966 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:07,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:07,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-12-17 17:01:07,966 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:07,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:07,966 INFO L85 PathProgramCache]: Analyzing trace with hash -954133613, now seen corresponding path program 1 times [2021-12-17 17:01:07,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:07,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272210713] [2021-12-17 17:01:07,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:07,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:08,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:08,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272210713] [2021-12-17 17:01:08,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272210713] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:08,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:08,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-12-17 17:01:08,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795621130] [2021-12-17 17:01:08,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:08,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-12-17 17:01:08,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:08,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-12-17 17:01:08,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1154, Unknown=0, NotChecked=0, Total=1260 [2021-12-17 17:01:08,960 INFO L87 Difference]: Start difference. First operand 403 states and 511 transitions. Second operand has 36 states, 36 states have (on average 3.3333333333333335) internal successors, (120), 36 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:13,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:13,514 INFO L93 Difference]: Finished difference Result 562 states and 679 transitions. [2021-12-17 17:01:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-12-17 17:01:13,514 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.3333333333333335) internal successors, (120), 36 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-12-17 17:01:13,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:13,515 INFO L225 Difference]: With dead ends: 562 [2021-12-17 17:01:13,515 INFO L226 Difference]: Without dead ends: 554 [2021-12-17 17:01:13,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=663, Invalid=4029, Unknown=0, NotChecked=0, Total=4692 [2021-12-17 17:01:13,516 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1491 mSDsluCounter, 6663 mSDsCounter, 0 mSdLazyCounter, 4338 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 7009 SdHoareTripleChecker+Invalid, 4423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 4338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:13,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 7009 Invalid, 4423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 4338 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 17:01:13,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-12-17 17:01:13,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 427. [2021-12-17 17:01:13,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 423 states have (on average 1.2765957446808511) internal successors, (540), 426 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:13,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 540 transitions. [2021-12-17 17:01:13,833 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 540 transitions. Word has length 120 [2021-12-17 17:01:13,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:13,833 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 540 transitions. [2021-12-17 17:01:13,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.3333333333333335) internal successors, (120), 36 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:13,833 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 540 transitions. [2021-12-17 17:01:13,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 17:01:13,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:13,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:13,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-12-17 17:01:13,834 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:13,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:13,835 INFO L85 PathProgramCache]: Analyzing trace with hash 936317779, now seen corresponding path program 1 times [2021-12-17 17:01:13,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:13,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432920481] [2021-12-17 17:01:13,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:13,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:14,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:14,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:14,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432920481] [2021-12-17 17:01:14,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432920481] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:14,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:14,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:01:14,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575025725] [2021-12-17 17:01:14,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:14,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:01:14,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:14,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:01:14,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:01:14,080 INFO L87 Difference]: Start difference. First operand 427 states and 540 transitions. Second operand has 12 states, 12 states have (on average 10.0) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:15,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:15,817 INFO L93 Difference]: Finished difference Result 1007 states and 1378 transitions. [2021-12-17 17:01:15,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:01:15,817 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-12-17 17:01:15,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:15,818 INFO L225 Difference]: With dead ends: 1007 [2021-12-17 17:01:15,818 INFO L226 Difference]: Without dead ends: 1001 [2021-12-17 17:01:15,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 17:01:15,819 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 1519 mSDsluCounter, 3271 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 3944 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:15,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1519 Valid, 3944 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:01:15,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2021-12-17 17:01:16,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 421. [2021-12-17 17:01:16,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 418 states have (on average 1.2751196172248804) internal successors, (533), 420 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:16,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 533 transitions. [2021-12-17 17:01:16,141 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 533 transitions. Word has length 120 [2021-12-17 17:01:16,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:16,141 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 533 transitions. [2021-12-17 17:01:16,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:16,141 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 533 transitions. [2021-12-17 17:01:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 17:01:16,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:16,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:16,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-12-17 17:01:16,142 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:16,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:16,142 INFO L85 PathProgramCache]: Analyzing trace with hash -212136354, now seen corresponding path program 1 times [2021-12-17 17:01:16,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:16,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442546217] [2021-12-17 17:01:16,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:16,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:16,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:16,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442546217] [2021-12-17 17:01:16,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442546217] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:16,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:16,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 17:01:16,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275665452] [2021-12-17 17:01:16,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:16,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 17:01:16,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:16,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 17:01:16,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-17 17:01:16,365 INFO L87 Difference]: Start difference. First operand 421 states and 533 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:17,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:17,842 INFO L93 Difference]: Finished difference Result 967 states and 1330 transitions. [2021-12-17 17:01:17,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 17:01:17,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-12-17 17:01:17,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:17,844 INFO L225 Difference]: With dead ends: 967 [2021-12-17 17:01:17,844 INFO L226 Difference]: Without dead ends: 925 [2021-12-17 17:01:17,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-12-17 17:01:17,844 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1902 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:17,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1902 Valid, 1705 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:01:17,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-12-17 17:01:18,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 379. [2021-12-17 17:01:18,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 377 states have (on average 1.2891246684350133) internal successors, (486), 378 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:18,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 486 transitions. [2021-12-17 17:01:18,162 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 486 transitions. Word has length 121 [2021-12-17 17:01:18,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:18,163 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 486 transitions. [2021-12-17 17:01:18,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 486 transitions. [2021-12-17 17:01:18,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 17:01:18,163 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:18,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:18,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-12-17 17:01:18,163 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:18,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:18,164 INFO L85 PathProgramCache]: Analyzing trace with hash 342225974, now seen corresponding path program 1 times [2021-12-17 17:01:18,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:18,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846660036] [2021-12-17 17:01:18,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:18,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:18,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:18,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846660036] [2021-12-17 17:01:18,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846660036] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:18,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:18,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:01:18,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670378841] [2021-12-17 17:01:18,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:18,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:01:18,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:18,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:01:18,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:01:18,402 INFO L87 Difference]: Start difference. First operand 379 states and 486 transitions. Second operand has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:20,612 INFO L93 Difference]: Finished difference Result 1335 states and 1884 transitions. [2021-12-17 17:01:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 17:01:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-12-17 17:01:20,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:20,614 INFO L225 Difference]: With dead ends: 1335 [2021-12-17 17:01:20,614 INFO L226 Difference]: Without dead ends: 1309 [2021-12-17 17:01:20,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-17 17:01:20,614 INFO L933 BasicCegarLoop]: 644 mSDtfsCounter, 1630 mSDsluCounter, 3732 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 4376 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:20,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1630 Valid, 4376 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 17:01:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2021-12-17 17:01:20,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 337. [2021-12-17 17:01:20,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 336 states have (on average 1.2976190476190477) internal successors, (436), 336 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:20,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 436 transitions. [2021-12-17 17:01:20,911 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 436 transitions. Word has length 121 [2021-12-17 17:01:20,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:20,911 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 436 transitions. [2021-12-17 17:01:20,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:20,911 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 436 transitions. [2021-12-17 17:01:20,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-17 17:01:20,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:20,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:20,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-12-17 17:01:20,912 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:20,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:20,912 INFO L85 PathProgramCache]: Analyzing trace with hash -433113524, now seen corresponding path program 1 times [2021-12-17 17:01:20,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:20,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593523144] [2021-12-17 17:01:20,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:20,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:20,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:20,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593523144] [2021-12-17 17:01:20,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593523144] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:20,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:20,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:01:20,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496095284] [2021-12-17 17:01:20,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:20,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:20,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:20,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:20,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:20,984 INFO L87 Difference]: Start difference. First operand 337 states and 436 transitions. Second operand has 9 states, 9 states have (on average 17.22222222222222) internal successors, (155), 9 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:24,661 INFO L93 Difference]: Finished difference Result 2661 states and 3936 transitions. [2021-12-17 17:01:24,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:24,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.22222222222222) internal successors, (155), 9 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2021-12-17 17:01:24,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:24,664 INFO L225 Difference]: With dead ends: 2661 [2021-12-17 17:01:24,664 INFO L226 Difference]: Without dead ends: 2495 [2021-12-17 17:01:24,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2021-12-17 17:01:24,665 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 2720 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2720 SdHoareTripleChecker+Valid, 3738 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:24,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2720 Valid, 3738 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:01:24,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2021-12-17 17:01:25,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 501. [2021-12-17 17:01:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.362) internal successors, (681), 500 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:25,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 681 transitions. [2021-12-17 17:01:25,267 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 681 transitions. Word has length 155 [2021-12-17 17:01:25,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:25,267 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 681 transitions. [2021-12-17 17:01:25,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.22222222222222) internal successors, (155), 9 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 681 transitions. [2021-12-17 17:01:25,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-17 17:01:25,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:25,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:25,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-12-17 17:01:25,268 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:25,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:25,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1991648831, now seen corresponding path program 1 times [2021-12-17 17:01:25,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:25,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441453290] [2021-12-17 17:01:25,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:25,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:25,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:25,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:25,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441453290] [2021-12-17 17:01:25,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441453290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:25,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:25,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:01:25,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074180816] [2021-12-17 17:01:25,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:25,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:25,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:25,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:25,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:25,345 INFO L87 Difference]: Start difference. First operand 501 states and 681 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:29,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:29,299 INFO L93 Difference]: Finished difference Result 2977 states and 4392 transitions. [2021-12-17 17:01:29,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:01:29,300 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2021-12-17 17:01:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:29,302 INFO L225 Difference]: With dead ends: 2977 [2021-12-17 17:01:29,302 INFO L226 Difference]: Without dead ends: 2647 [2021-12-17 17:01:29,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:01:29,303 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 2217 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2217 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:29,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2217 Valid, 2174 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:01:29,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2021-12-17 17:01:30,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 829. [2021-12-17 17:01:30,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 828 states have (on average 1.4166666666666667) internal successors, (1173), 828 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:30,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1173 transitions. [2021-12-17 17:01:30,457 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1173 transitions. Word has length 157 [2021-12-17 17:01:30,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:30,457 INFO L470 AbstractCegarLoop]: Abstraction has 829 states and 1173 transitions. [2021-12-17 17:01:30,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:30,457 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1173 transitions. [2021-12-17 17:01:30,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-17 17:01:30,458 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:30,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:30,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-12-17 17:01:30,458 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:30,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:30,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1769378683, now seen corresponding path program 1 times [2021-12-17 17:01:30,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:30,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793792696] [2021-12-17 17:01:30,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:30,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:30,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:30,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793792696] [2021-12-17 17:01:30,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793792696] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:30,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:30,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:01:30,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585065770] [2021-12-17 17:01:30,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:30,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:30,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:30,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:30,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:30,536 INFO L87 Difference]: Start difference. First operand 829 states and 1173 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:35,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:35,153 INFO L93 Difference]: Finished difference Result 3305 states and 4884 transitions. [2021-12-17 17:01:35,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:01:35,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2021-12-17 17:01:35,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:35,157 INFO L225 Difference]: With dead ends: 3305 [2021-12-17 17:01:35,157 INFO L226 Difference]: Without dead ends: 2975 [2021-12-17 17:01:35,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:01:35,158 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 2286 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:35,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2286 Valid, 1986 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:01:35,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-12-17 17:01:37,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1321. [2021-12-17 17:01:37,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1320 states have (on average 1.446969696969697) internal successors, (1910), 1320 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:37,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1910 transitions. [2021-12-17 17:01:37,139 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1910 transitions. Word has length 157 [2021-12-17 17:01:37,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:37,140 INFO L470 AbstractCegarLoop]: Abstraction has 1321 states and 1910 transitions. [2021-12-17 17:01:37,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:37,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1910 transitions. [2021-12-17 17:01:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-17 17:01:37,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:37,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:37,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-12-17 17:01:37,141 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:37,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1616943691, now seen corresponding path program 1 times [2021-12-17 17:01:37,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:37,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085146726] [2021-12-17 17:01:37,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:37,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:37,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:37,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:37,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085146726] [2021-12-17 17:01:37,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085146726] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:37,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:37,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:01:37,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411847214] [2021-12-17 17:01:37,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:37,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:37,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:37,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:37,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:37,223 INFO L87 Difference]: Start difference. First operand 1321 states and 1910 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:42,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:42,334 INFO L93 Difference]: Finished difference Result 3633 states and 5376 transitions. [2021-12-17 17:01:42,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:01:42,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2021-12-17 17:01:42,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:42,338 INFO L225 Difference]: With dead ends: 3633 [2021-12-17 17:01:42,338 INFO L226 Difference]: Without dead ends: 3303 [2021-12-17 17:01:42,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:01:42,339 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 2526 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:42,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2526 Valid, 1930 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:01:42,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2021-12-17 17:01:44,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 1649. [2021-12-17 17:01:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1648 states have (on average 1.4575242718446602) internal successors, (2402), 1648 states have internal predecessors, (2402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:44,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2402 transitions. [2021-12-17 17:01:44,923 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2402 transitions. Word has length 157 [2021-12-17 17:01:44,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:44,923 INFO L470 AbstractCegarLoop]: Abstraction has 1649 states and 2402 transitions. [2021-12-17 17:01:44,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:44,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2402 transitions. [2021-12-17 17:01:44,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-17 17:01:44,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:44,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:44,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-12-17 17:01:44,924 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:44,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:44,925 INFO L85 PathProgramCache]: Analyzing trace with hash -43992562, now seen corresponding path program 1 times [2021-12-17 17:01:44,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:44,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782277787] [2021-12-17 17:01:44,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:44,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:45,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:45,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:45,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782277787] [2021-12-17 17:01:45,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782277787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:45,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:45,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:01:45,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274790747] [2021-12-17 17:01:45,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:45,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:45,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:45,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:45,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:45,072 INFO L87 Difference]: Start difference. First operand 1649 states and 2402 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:47,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:47,648 INFO L93 Difference]: Finished difference Result 3129 states and 4619 transitions. [2021-12-17 17:01:47,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:01:47,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2021-12-17 17:01:47,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:47,650 INFO L225 Difference]: With dead ends: 3129 [2021-12-17 17:01:47,650 INFO L226 Difference]: Without dead ends: 1651 [2021-12-17 17:01:47,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-12-17 17:01:47,651 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 1504 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:47,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1504 Valid, 987 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:01:47,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2021-12-17 17:01:50,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1649. [2021-12-17 17:01:50,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1648 states have (on average 1.4514563106796117) internal successors, (2392), 1648 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:50,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2392 transitions. [2021-12-17 17:01:50,145 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2392 transitions. Word has length 157 [2021-12-17 17:01:50,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:50,145 INFO L470 AbstractCegarLoop]: Abstraction has 1649 states and 2392 transitions. [2021-12-17 17:01:50,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:50,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2392 transitions. [2021-12-17 17:01:50,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-17 17:01:50,146 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:50,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:50,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-12-17 17:01:50,146 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:50,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:50,147 INFO L85 PathProgramCache]: Analyzing trace with hash -783732883, now seen corresponding path program 1 times [2021-12-17 17:01:50,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:50,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695073671] [2021-12-17 17:01:50,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:50,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:50,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:50,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695073671] [2021-12-17 17:01:50,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695073671] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:50,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:50,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 17:01:50,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166016352] [2021-12-17 17:01:50,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:50,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 17:01:50,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:50,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 17:01:50,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:01:50,195 INFO L87 Difference]: Start difference. First operand 1649 states and 2392 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:54,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:54,801 INFO L93 Difference]: Finished difference Result 4489 states and 6610 transitions. [2021-12-17 17:01:54,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 17:01:54,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2021-12-17 17:01:54,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:54,804 INFO L225 Difference]: With dead ends: 4489 [2021-12-17 17:01:54,804 INFO L226 Difference]: Without dead ends: 3011 [2021-12-17 17:01:54,805 INFO L932 BasicCegarLoop]: 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 [2021-12-17 17:01:54,805 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 158 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:54,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 422 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 17:01:54,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2021-12-17 17:01:59,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2991. [2021-12-17 17:01:59,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2991 states, 2990 states have (on average 1.451170568561873) internal successors, (4339), 2990 states have internal predecessors, (4339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 4339 transitions. [2021-12-17 17:01:59,520 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 4339 transitions. Word has length 157 [2021-12-17 17:01:59,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:59,520 INFO L470 AbstractCegarLoop]: Abstraction has 2991 states and 4339 transitions. [2021-12-17 17:01:59,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:59,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 4339 transitions. [2021-12-17 17:01:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-17 17:01:59,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:59,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:59,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-12-17 17:01:59,522 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:59,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1691177897, now seen corresponding path program 1 times [2021-12-17 17:01:59,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:59,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640068595] [2021-12-17 17:01:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:59,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:59,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:59,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:59,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640068595] [2021-12-17 17:01:59,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640068595] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:59,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:59,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:01:59,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736092011] [2021-12-17 17:01:59,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:59,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:59,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:59,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:59,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:59,598 INFO L87 Difference]: Start difference. First operand 2991 states and 4339 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:10,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:10,190 INFO L93 Difference]: Finished difference Result 7389 states and 10829 transitions. [2021-12-17 17:02:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:02:10,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2021-12-17 17:02:10,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:10,198 INFO L225 Difference]: With dead ends: 7389 [2021-12-17 17:02:10,198 INFO L226 Difference]: Without dead ends: 6761 [2021-12-17 17:02:10,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:02:10,199 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 2317 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:10,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2317 Valid, 2083 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:02:10,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6761 states. [2021-12-17 17:02:16,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6761 to 3617. [2021-12-17 17:02:16,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3617 states, 3616 states have (on average 1.4549225663716814) internal successors, (5261), 3616 states have internal predecessors, (5261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 5261 transitions. [2021-12-17 17:02:16,076 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 5261 transitions. Word has length 157 [2021-12-17 17:02:16,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:16,076 INFO L470 AbstractCegarLoop]: Abstraction has 3617 states and 5261 transitions. [2021-12-17 17:02:16,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:16,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5261 transitions. [2021-12-17 17:02:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-17 17:02:16,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:16,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:16,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-12-17 17:02:16,077 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:16,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:16,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1484369809, now seen corresponding path program 1 times [2021-12-17 17:02:16,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:16,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36696903] [2021-12-17 17:02:16,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:16,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:16,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:16,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36696903] [2021-12-17 17:02:16,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36696903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:16,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:16,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:02:16,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763071007] [2021-12-17 17:02:16,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:16,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:16,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:16,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:16,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:16,153 INFO L87 Difference]: Start difference. First operand 3617 states and 5261 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:27,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:27,941 INFO L93 Difference]: Finished difference Result 8015 states and 11751 transitions. [2021-12-17 17:02:27,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:02:27,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2021-12-17 17:02:27,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:27,948 INFO L225 Difference]: With dead ends: 8015 [2021-12-17 17:02:27,949 INFO L226 Difference]: Without dead ends: 7387 [2021-12-17 17:02:27,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:02:27,950 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 2099 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:27,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2099 Valid, 2312 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:02:27,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7387 states. [2021-12-17 17:02:34,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7387 to 4243. [2021-12-17 17:02:34,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4243 states, 4242 states have (on average 1.4575671852899577) internal successors, (6183), 4242 states have internal predecessors, (6183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:34,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 6183 transitions. [2021-12-17 17:02:34,873 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 6183 transitions. Word has length 157 [2021-12-17 17:02:34,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:34,873 INFO L470 AbstractCegarLoop]: Abstraction has 4243 states and 6183 transitions. [2021-12-17 17:02:34,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:34,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 6183 transitions. [2021-12-17 17:02:34,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-17 17:02:34,874 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:34,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:34,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-12-17 17:02:34,874 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:34,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:34,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1959315321, now seen corresponding path program 1 times [2021-12-17 17:02:34,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:34,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040185382] [2021-12-17 17:02:34,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:34,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:34,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:34,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040185382] [2021-12-17 17:02:34,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040185382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:34,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:34,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:02:34,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634294589] [2021-12-17 17:02:34,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:34,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:34,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:34,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:34,950 INFO L87 Difference]: Start difference. First operand 4243 states and 6183 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:47,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:47,765 INFO L93 Difference]: Finished difference Result 8641 states and 12673 transitions. [2021-12-17 17:02:47,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:02:47,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2021-12-17 17:02:47,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:47,774 INFO L225 Difference]: With dead ends: 8641 [2021-12-17 17:02:47,774 INFO L226 Difference]: Without dead ends: 8013 [2021-12-17 17:02:47,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:02:47,775 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 2120 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:47,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2120 Valid, 2693 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:02:47,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8013 states. [2021-12-17 17:02:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8013 to 4869. [2021-12-17 17:02:55,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 4868 states have (on average 1.459531635168447) internal successors, (7105), 4868 states have internal predecessors, (7105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:55,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 7105 transitions. [2021-12-17 17:02:55,918 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 7105 transitions. Word has length 157 [2021-12-17 17:02:55,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:55,919 INFO L470 AbstractCegarLoop]: Abstraction has 4869 states and 7105 transitions. [2021-12-17 17:02:55,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:55,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 7105 transitions. [2021-12-17 17:02:55,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-17 17:02:55,920 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:55,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:55,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-12-17 17:02:55,921 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:55,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:55,921 INFO L85 PathProgramCache]: Analyzing trace with hash -812866883, now seen corresponding path program 1 times [2021-12-17 17:02:55,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:55,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503149644] [2021-12-17 17:02:55,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:55,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:55,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:55,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503149644] [2021-12-17 17:02:55,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503149644] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:55,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:55,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 17:02:55,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528460711] [2021-12-17 17:02:55,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:55,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 17:02:55,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:55,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 17:02:55,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:02:55,961 INFO L87 Difference]: Start difference. First operand 4869 states and 7105 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:06,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:06,736 INFO L93 Difference]: Finished difference Result 11539 states and 16936 transitions. [2021-12-17 17:03:06,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 17:03:06,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2021-12-17 17:03:06,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:06,744 INFO L225 Difference]: With dead ends: 11539 [2021-12-17 17:03:06,744 INFO L226 Difference]: Without dead ends: 6841 [2021-12-17 17:03:06,748 INFO L932 BasicCegarLoop]: 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 [2021-12-17 17:03:06,748 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 112 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:06,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 614 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 17:03:06,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6841 states. [2021-12-17 17:03:18,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6841 to 6807. [2021-12-17 17:03:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6807 states, 6806 states have (on average 1.4578313253012047) internal successors, (9922), 6806 states have internal predecessors, (9922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:18,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6807 states to 6807 states and 9922 transitions. [2021-12-17 17:03:18,155 INFO L78 Accepts]: Start accepts. Automaton has 6807 states and 9922 transitions. Word has length 158 [2021-12-17 17:03:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:18,155 INFO L470 AbstractCegarLoop]: Abstraction has 6807 states and 9922 transitions. [2021-12-17 17:03:18,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:18,156 INFO L276 IsEmpty]: Start isEmpty. Operand 6807 states and 9922 transitions. [2021-12-17 17:03:18,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-17 17:03:18,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:18,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:18,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-12-17 17:03:18,158 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:18,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:18,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1527169923, now seen corresponding path program 1 times [2021-12-17 17:03:18,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:18,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118161077] [2021-12-17 17:03:18,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:18,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:18,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:18,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:18,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118161077] [2021-12-17 17:03:18,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118161077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:18,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:18,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:03:18,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552516324] [2021-12-17 17:03:18,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:18,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:18,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:18,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:18,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:18,235 INFO L87 Difference]: Start difference. First operand 6807 states and 9922 transitions. Second operand has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:38,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:38,611 INFO L93 Difference]: Finished difference Result 13105 states and 19180 transitions. [2021-12-17 17:03:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:03:38,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2021-12-17 17:03:38,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:38,622 INFO L225 Difference]: With dead ends: 13105 [2021-12-17 17:03:38,623 INFO L226 Difference]: Without dead ends: 12203 [2021-12-17 17:03:38,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:03:38,624 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 2119 mSDsluCounter, 2137 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:38,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2119 Valid, 2509 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:03:38,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12203 states. [2021-12-17 17:03:51,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12203 to 7689. [2021-12-17 17:03:51,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7689 states, 7688 states have (on average 1.4588969823100937) internal successors, (11216), 7688 states have internal predecessors, (11216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:51,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7689 states to 7689 states and 11216 transitions. [2021-12-17 17:03:51,604 INFO L78 Accepts]: Start accepts. Automaton has 7689 states and 11216 transitions. Word has length 158 [2021-12-17 17:03:51,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:51,604 INFO L470 AbstractCegarLoop]: Abstraction has 7689 states and 11216 transitions. [2021-12-17 17:03:51,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:51,604 INFO L276 IsEmpty]: Start isEmpty. Operand 7689 states and 11216 transitions. [2021-12-17 17:03:51,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-17 17:03:51,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:51,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:51,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-12-17 17:03:51,606 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:51,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:51,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1422936776, now seen corresponding path program 1 times [2021-12-17 17:03:51,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:51,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180208471] [2021-12-17 17:03:51,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:51,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:51,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:51,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:51,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180208471] [2021-12-17 17:03:51,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180208471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:51,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:51,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 17:03:51,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631807138] [2021-12-17 17:03:51,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:51,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 17:03:51,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:51,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 17:03:51,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:03:51,648 INFO L87 Difference]: Start difference. First operand 7689 states and 11216 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:16,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:16,108 INFO L93 Difference]: Finished difference Result 22317 states and 32562 transitions. [2021-12-17 17:04:16,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 17:04:16,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2021-12-17 17:04:16,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:16,124 INFO L225 Difference]: With dead ends: 22317 [2021-12-17 17:04:16,124 INFO L226 Difference]: Without dead ends: 14799 [2021-12-17 17:04:16,129 INFO L932 BasicCegarLoop]: 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 [2021-12-17 17:04:16,129 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 124 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:16,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 563 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 17:04:16,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14799 states. [2021-12-17 17:04:40,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14799 to 14389. [2021-12-17 17:04:40,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14389 states, 14388 states have (on average 1.4539199332777315) internal successors, (20919), 14388 states have internal predecessors, (20919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14389 states to 14389 states and 20919 transitions. [2021-12-17 17:04:40,783 INFO L78 Accepts]: Start accepts. Automaton has 14389 states and 20919 transitions. Word has length 158 [2021-12-17 17:04:40,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:40,783 INFO L470 AbstractCegarLoop]: Abstraction has 14389 states and 20919 transitions. [2021-12-17 17:04:40,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:40,783 INFO L276 IsEmpty]: Start isEmpty. Operand 14389 states and 20919 transitions. [2021-12-17 17:04:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-17 17:04:40,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:40,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:40,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-12-17 17:04:40,785 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:40,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:40,785 INFO L85 PathProgramCache]: Analyzing trace with hash 381786429, now seen corresponding path program 1 times [2021-12-17 17:04:40,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:40,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670545484] [2021-12-17 17:04:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:40,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:40,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:40,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670545484] [2021-12-17 17:04:40,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670545484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:40,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:40,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 17:04:40,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030802060] [2021-12-17 17:04:40,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:40,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 17:04:40,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:40,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 17:04:40,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:04:40,833 INFO L87 Difference]: Start difference. First operand 14389 states and 20919 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:28,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:28,322 INFO L93 Difference]: Finished difference Result 42009 states and 60957 transitions. [2021-12-17 17:05:28,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 17:05:28,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2021-12-17 17:05:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:28,364 INFO L225 Difference]: With dead ends: 42009 [2021-12-17 17:05:28,364 INFO L226 Difference]: Without dead ends: 27791 [2021-12-17 17:05:28,378 INFO L932 BasicCegarLoop]: 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 [2021-12-17 17:05:28,379 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 117 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:28,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 563 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 17:05:28,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27791 states. [2021-12-17 17:06:17,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27791 to 26973. [2021-12-17 17:06:17,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26973 states, 26972 states have (on average 1.4459068663799495) internal successors, (38999), 26972 states have internal predecessors, (38999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:17,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26973 states to 26973 states and 38999 transitions. [2021-12-17 17:06:17,334 INFO L78 Accepts]: Start accepts. Automaton has 26973 states and 38999 transitions. Word has length 159 [2021-12-17 17:06:17,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:17,334 INFO L470 AbstractCegarLoop]: Abstraction has 26973 states and 38999 transitions. [2021-12-17 17:06:17,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:17,334 INFO L276 IsEmpty]: Start isEmpty. Operand 26973 states and 38999 transitions. [2021-12-17 17:06:17,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 17:06:17,335 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:17,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:17,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-12-17 17:06:17,336 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:17,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:17,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1865670949, now seen corresponding path program 1 times [2021-12-17 17:06:17,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:17,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224246248] [2021-12-17 17:06:17,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:17,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:17,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:17,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224246248] [2021-12-17 17:06:17,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224246248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:17,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:17,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 17:06:17,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229060859] [2021-12-17 17:06:17,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:17,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 17:06:17,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:17,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 17:06:17,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:06:17,378 INFO L87 Difference]: Start difference. First operand 26973 states and 38999 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Killed by 15