./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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.5.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 876148c876cf7c1b78d2f058097c1ea19d5931075241b9f9a3c243e2bacc58fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 07:23:46,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:23:46,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:23:46,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:23:46,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:23:46,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:23:46,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:23:46,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:23:46,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:23:46,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:23:46,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:23:46,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:23:46,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:23:46,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:23:46,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:23:46,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:23:46,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:23:46,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:23:46,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:23:46,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:23:46,626 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:23:46,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:23:46,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:23:46,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:23:46,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:23:46,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:23:46,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:23:46,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:23:46,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:23:46,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:23:46,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:23:46,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:23:46,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:23:46,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:23:46,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:23:46,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:23:46,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:23:46,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:23:46,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:23:46,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:23:46,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:23:46,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:23:46,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:23:46,658 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:23:46,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:23:46,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:23:46,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:23:46,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:23:46,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:23:46,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:23:46,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:23:46,662 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:23:46,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:23:46,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:23:46,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:23:46,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:23:46,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:23:46,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:23:46,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:23:46,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:23:46,665 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:23:46,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:23:46,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:23:46,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:23:46,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:23:46,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:23:46,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:23:46,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:23:46,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:23:46,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:23:46,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:23:46,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:23:46,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:23:46,668 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:23:46,668 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:23:46,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:23:46,669 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 876148c876cf7c1b78d2f058097c1ea19d5931075241b9f9a3c243e2bacc58fd [2022-07-12 07:23:46,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:23:46,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:23:46,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:23:46,906 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:23:46,907 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:23:46,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-12 07:23:46,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e6b8ee3/18d49b5db6734012a2c3ead327ca1f92/FLAGb5610abfb [2022-07-12 07:23:47,460 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:23:47,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-12 07:23:47,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e6b8ee3/18d49b5db6734012a2c3ead327ca1f92/FLAGb5610abfb [2022-07-12 07:23:47,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e6b8ee3/18d49b5db6734012a2c3ead327ca1f92 [2022-07-12 07:23:47,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:23:47,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:23:47,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:23:47,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:23:47,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:23:47,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:23:47" (1/1) ... [2022-07-12 07:23:47,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64bd8ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:47, skipping insertion in model container [2022-07-12 07:23:47,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:23:47" (1/1) ... [2022-07-12 07:23:47,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:23:47,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:23:48,127 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10927,10940] [2022-07-12 07:23:48,156 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14764,14777] [2022-07-12 07:23:48,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15985,15998] [2022-07-12 07:23:48,166 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16691,16704] [2022-07-12 07:23:48,173 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18235,18248] [2022-07-12 07:23:48,176 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18941,18954] [2022-07-12 07:23:48,181 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19970,19983] [2022-07-12 07:23:48,191 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22376,22389] [2022-07-12 07:23:48,196 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23085,23098] [2022-07-12 07:23:48,205 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24122,24135] [2022-07-12 07:23:48,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26018,26031] [2022-07-12 07:23:48,243 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29926,29939] [2022-07-12 07:23:48,247 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30635,30648] [2022-07-12 07:23:48,251 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31667,31680] [2022-07-12 07:23:48,258 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33558,33571] [2022-07-12 07:23:48,270 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36771,36784] [2022-07-12 07:23:48,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:23:48,447 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:23:48,526 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10927,10940] [2022-07-12 07:23:48,541 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14764,14777] [2022-07-12 07:23:48,545 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15985,15998] [2022-07-12 07:23:48,550 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16691,16704] [2022-07-12 07:23:48,561 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18235,18248] [2022-07-12 07:23:48,565 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18941,18954] [2022-07-12 07:23:48,568 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19970,19983] [2022-07-12 07:23:48,581 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22376,22389] [2022-07-12 07:23:48,583 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23085,23098] [2022-07-12 07:23:48,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24122,24135] [2022-07-12 07:23:48,593 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26018,26031] [2022-07-12 07:23:48,617 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29926,29939] [2022-07-12 07:23:48,620 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30635,30648] [2022-07-12 07:23:48,642 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31667,31680] [2022-07-12 07:23:48,647 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33558,33571] [2022-07-12 07:23:48,654 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.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36771,36784] [2022-07-12 07:23:48,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:23:48,756 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:23:48,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48 WrapperNode [2022-07-12 07:23:48,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:23:48,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:23:48,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:23:48,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:23:48,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (1/1) ... [2022-07-12 07:23:48,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (1/1) ... [2022-07-12 07:23:48,861 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3340 [2022-07-12 07:23:48,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:23:48,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:23:48,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:23:48,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:23:48,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (1/1) ... [2022-07-12 07:23:48,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (1/1) ... [2022-07-12 07:23:48,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (1/1) ... [2022-07-12 07:23:48,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (1/1) ... [2022-07-12 07:23:48,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (1/1) ... [2022-07-12 07:23:48,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (1/1) ... [2022-07-12 07:23:48,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (1/1) ... [2022-07-12 07:23:48,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:23:48,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:23:48,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:23:48,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:23:48,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (1/1) ... [2022-07-12 07:23:48,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:23:48,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:23:48,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 07:23:49,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 07:23:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:23:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:23:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:23:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:23:49,223 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:23:49,224 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:23:50,667 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:23:50,683 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:23:50,683 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:23:50,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:23:50 BoogieIcfgContainer [2022-07-12 07:23:50,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:23:50,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:23:50,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:23:50,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:23:50,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:23:47" (1/3) ... [2022-07-12 07:23:50,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c843f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:23:50, skipping insertion in model container [2022-07-12 07:23:50,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:23:48" (2/3) ... [2022-07-12 07:23:50,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c843f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:23:50, skipping insertion in model container [2022-07-12 07:23:50,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:23:50" (3/3) ... [2022-07-12 07:23:50,696 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-12 07:23:50,711 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:23:50,711 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-07-12 07:23:50,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:23:50,783 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@648df1ab, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@24ee56a1 [2022-07-12 07:23:50,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-07-12 07:23:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 626 states, 609 states have (on average 1.8505747126436782) internal successors, (1127), 625 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:50,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-12 07:23:50,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:23:50,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:23:50,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:23:50,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:23:50,824 INFO L85 PathProgramCache]: Analyzing trace with hash -50607350, now seen corresponding path program 1 times [2022-07-12 07:23:50,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:23:50,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240868656] [2022-07-12 07:23:50,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:23:50,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:23:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:23:51,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:23:51,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:23:51,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240868656] [2022-07-12 07:23:51,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240868656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:23:51,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:23:51,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:23:51,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188698381] [2022-07-12 07:23:51,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:23:51,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:23:51,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:23:51,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:23:51,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:23:51,244 INFO L87 Difference]: Start difference. First operand has 626 states, 609 states have (on average 1.8505747126436782) internal successors, (1127), 625 states have internal predecessors, (1127), 0 states have call successors, (0), 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 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:51,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:23:51,655 INFO L93 Difference]: Finished difference Result 971 states and 1686 transitions. [2022-07-12 07:23:51,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:23:51,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-12 07:23:51,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:23:51,670 INFO L225 Difference]: With dead ends: 971 [2022-07-12 07:23:51,671 INFO L226 Difference]: Without dead ends: 498 [2022-07-12 07:23:51,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:23:51,677 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 2522 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:23:51,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 603 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:23:51,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-07-12 07:23:51,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2022-07-12 07:23:51,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 482 states have (on average 1.3112033195020747) internal successors, (632), 497 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:51,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 632 transitions. [2022-07-12 07:23:51,770 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 632 transitions. Word has length 71 [2022-07-12 07:23:51,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:23:51,771 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 632 transitions. [2022-07-12 07:23:51,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:51,771 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 632 transitions. [2022-07-12 07:23:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-12 07:23:51,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:23:51,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:23:51,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:23:51,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:23:51,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:23:51,776 INFO L85 PathProgramCache]: Analyzing trace with hash -329897172, now seen corresponding path program 1 times [2022-07-12 07:23:51,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:23:51,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026719592] [2022-07-12 07:23:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:23:51,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:23:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:23:51,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:23:51,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:23:51,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026719592] [2022-07-12 07:23:51,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026719592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:23:51,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:23:51,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:23:51,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150612105] [2022-07-12 07:23:51,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:23:51,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:23:51,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:23:51,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:23:51,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:23:51,902 INFO L87 Difference]: Start difference. First operand 498 states and 632 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:52,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:23:52,245 INFO L93 Difference]: Finished difference Result 834 states and 1087 transitions. [2022-07-12 07:23:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:23:52,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-12 07:23:52,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:23:52,256 INFO L225 Difference]: With dead ends: 834 [2022-07-12 07:23:52,256 INFO L226 Difference]: Without dead ends: 458 [2022-07-12 07:23:52,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:23:52,263 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1614 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:23:52,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 328 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:23:52,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-07-12 07:23:52,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2022-07-12 07:23:52,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 442 states have (on average 1.3190045248868778) internal successors, (583), 457 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:52,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 583 transitions. [2022-07-12 07:23:52,297 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 583 transitions. Word has length 72 [2022-07-12 07:23:52,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:23:52,298 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 583 transitions. [2022-07-12 07:23:52,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:52,298 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 583 transitions. [2022-07-12 07:23:52,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 07:23:52,301 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:23:52,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:23:52,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 07:23:52,303 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:23:52,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:23:52,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1203518485, now seen corresponding path program 1 times [2022-07-12 07:23:52,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:23:52,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108152410] [2022-07-12 07:23:52,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:23:52,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:23:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:23:52,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:23:52,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:23:52,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108152410] [2022-07-12 07:23:52,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108152410] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:23:52,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:23:52,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:23:52,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139476176] [2022-07-12 07:23:52,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:23:52,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:23:52,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:23:52,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:23:52,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:23:52,413 INFO L87 Difference]: Start difference. First operand 458 states and 583 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:52,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:23:52,709 INFO L93 Difference]: Finished difference Result 794 states and 1037 transitions. [2022-07-12 07:23:52,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:23:52,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-12 07:23:52,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:23:52,713 INFO L225 Difference]: With dead ends: 794 [2022-07-12 07:23:52,713 INFO L226 Difference]: Without dead ends: 426 [2022-07-12 07:23:52,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:23:52,716 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1537 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:23:52,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 322 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:23:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-07-12 07:23:52,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2022-07-12 07:23:52,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 410 states have (on average 1.3317073170731708) internal successors, (546), 425 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:52,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 546 transitions. [2022-07-12 07:23:52,741 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 546 transitions. Word has length 73 [2022-07-12 07:23:52,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:23:52,742 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 546 transitions. [2022-07-12 07:23:52,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:52,745 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 546 transitions. [2022-07-12 07:23:52,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-12 07:23:52,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:23:52,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:23:52,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 07:23:52,749 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:23:52,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:23:52,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2052061875, now seen corresponding path program 1 times [2022-07-12 07:23:52,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:23:52,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210459921] [2022-07-12 07:23:52,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:23:52,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:23:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:23:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:23:52,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:23:52,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210459921] [2022-07-12 07:23:52,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210459921] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:23:52,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:23:52,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:23:52,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900192954] [2022-07-12 07:23:52,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:23:52,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:23:52,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:23:52,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:23:52,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:23:52,851 INFO L87 Difference]: Start difference. First operand 426 states and 546 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:23:53,105 INFO L93 Difference]: Finished difference Result 762 states and 999 transitions. [2022-07-12 07:23:53,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:23:53,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-12 07:23:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:23:53,108 INFO L225 Difference]: With dead ends: 762 [2022-07-12 07:23:53,108 INFO L226 Difference]: Without dead ends: 401 [2022-07-12 07:23:53,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:23:53,109 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1491 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:23:53,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 309 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:23:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-07-12 07:23:53,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2022-07-12 07:23:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.3454545454545455) internal successors, (518), 400 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:53,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 518 transitions. [2022-07-12 07:23:53,131 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 518 transitions. Word has length 74 [2022-07-12 07:23:53,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:23:53,132 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 518 transitions. [2022-07-12 07:23:53,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:53,132 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 518 transitions. [2022-07-12 07:23:53,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-12 07:23:53,133 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:23:53,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:23:53,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 07:23:53,134 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:23:53,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:23:53,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1326375668, now seen corresponding path program 1 times [2022-07-12 07:23:53,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:23:53,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703707651] [2022-07-12 07:23:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:23:53,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:23:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:23:53,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:23:53,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:23:53,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703707651] [2022-07-12 07:23:53,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703707651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:23:53,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:23:53,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:23:53,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366495661] [2022-07-12 07:23:53,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:23:53,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:23:53,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:23:53,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:23:53,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:23:53,226 INFO L87 Difference]: Start difference. First operand 401 states and 518 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:53,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:23:53,453 INFO L93 Difference]: Finished difference Result 737 states and 970 transitions. [2022-07-12 07:23:53,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:23:53,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-12 07:23:53,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:23:53,455 INFO L225 Difference]: With dead ends: 737 [2022-07-12 07:23:53,456 INFO L226 Difference]: Without dead ends: 390 [2022-07-12 07:23:53,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:23:53,457 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1435 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:23:53,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 304 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:23:53,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-07-12 07:23:53,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2022-07-12 07:23:53,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3502673796791445) internal successors, (505), 389 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 505 transitions. [2022-07-12 07:23:53,484 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 505 transitions. Word has length 75 [2022-07-12 07:23:53,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:23:53,484 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 505 transitions. [2022-07-12 07:23:53,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:53,485 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 505 transitions. [2022-07-12 07:23:53,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 07:23:53,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:23:53,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:23:53,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 07:23:53,489 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:23:53,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:23:53,489 INFO L85 PathProgramCache]: Analyzing trace with hash -976633234, now seen corresponding path program 1 times [2022-07-12 07:23:53,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:23:53,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620038781] [2022-07-12 07:23:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:23:53,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:23:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:23:53,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:23:53,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:23:53,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620038781] [2022-07-12 07:23:53,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620038781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:23:53,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:23:53,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:23:53,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253890433] [2022-07-12 07:23:53,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:23:53,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:23:53,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:23:53,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:23:53,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:23:53,707 INFO L87 Difference]: Start difference. First operand 390 states and 505 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:54,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:23:54,274 INFO L93 Difference]: Finished difference Result 754 states and 962 transitions. [2022-07-12 07:23:54,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:23:54,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-07-12 07:23:54,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:23:54,277 INFO L225 Difference]: With dead ends: 754 [2022-07-12 07:23:54,277 INFO L226 Difference]: Without dead ends: 542 [2022-07-12 07:23:54,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-07-12 07:23:54,279 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 2196 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:23:54,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 805 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:23:54,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-07-12 07:23:54,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 390. [2022-07-12 07:23:54,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3475935828877006) internal successors, (504), 389 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:54,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 504 transitions. [2022-07-12 07:23:54,306 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 504 transitions. Word has length 76 [2022-07-12 07:23:54,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:23:54,306 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 504 transitions. [2022-07-12 07:23:54,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:54,307 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 504 transitions. [2022-07-12 07:23:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 07:23:54,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:23:54,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:23:54,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 07:23:54,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:23:54,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:23:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash 649885335, now seen corresponding path program 1 times [2022-07-12 07:23:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:23:54,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404836755] [2022-07-12 07:23:54,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:23:54,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:23:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:23:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:23:54,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:23:54,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404836755] [2022-07-12 07:23:54,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404836755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:23:54,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:23:54,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:23:54,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300335726] [2022-07-12 07:23:54,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:23:54,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:23:54,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:23:54,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:23:54,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:23:54,489 INFO L87 Difference]: Start difference. First operand 390 states and 504 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:55,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:23:55,557 INFO L93 Difference]: Finished difference Result 904 states and 1205 transitions. [2022-07-12 07:23:55,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 07:23:55,558 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-07-12 07:23:55,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:23:55,561 INFO L225 Difference]: With dead ends: 904 [2022-07-12 07:23:55,561 INFO L226 Difference]: Without dead ends: 806 [2022-07-12 07:23:55,562 INFO L412 NwaCegarLoop]: 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 [2022-07-12 07:23:55,563 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2763 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:23:55,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2763 Valid, 1860 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:23:55,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2022-07-12 07:23:55,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 393. [2022-07-12 07:23:55,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3448275862068966) internal successors, (507), 392 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:55,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 507 transitions. [2022-07-12 07:23:55,597 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 507 transitions. Word has length 76 [2022-07-12 07:23:55,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:23:55,597 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 507 transitions. [2022-07-12 07:23:55,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:55,598 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 507 transitions. [2022-07-12 07:23:55,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 07:23:55,599 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:23:55,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:23:55,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 07:23:55,600 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:23:55,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:23:55,601 INFO L85 PathProgramCache]: Analyzing trace with hash 241040107, now seen corresponding path program 1 times [2022-07-12 07:23:55,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:23:55,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733001731] [2022-07-12 07:23:55,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:23:55,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:23:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:23:55,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:23:55,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:23:55,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733001731] [2022-07-12 07:23:55,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733001731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:23:55,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:23:55,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:23:55,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83360449] [2022-07-12 07:23:55,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:23:55,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:23:55,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:23:55,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:23:55,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:23:55,730 INFO L87 Difference]: Start difference. First operand 393 states and 507 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:56,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:23:56,772 INFO L93 Difference]: Finished difference Result 863 states and 1158 transitions. [2022-07-12 07:23:56,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:23:56,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-07-12 07:23:56,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:23:56,775 INFO L225 Difference]: With dead ends: 863 [2022-07-12 07:23:56,775 INFO L226 Difference]: Without dead ends: 735 [2022-07-12 07:23:56,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:23:56,776 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 2737 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 1570 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:23:56,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2737 Valid, 2176 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1570 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:23:56,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-07-12 07:23:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 390. [2022-07-12 07:23:56,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3449197860962567) internal successors, (503), 389 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 503 transitions. [2022-07-12 07:23:56,810 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 503 transitions. Word has length 76 [2022-07-12 07:23:56,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:23:56,810 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 503 transitions. [2022-07-12 07:23:56,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:56,810 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 503 transitions. [2022-07-12 07:23:56,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 07:23:56,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:23:56,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:23:56,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 07:23:56,812 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:23:56,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:23:56,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1538930145, now seen corresponding path program 1 times [2022-07-12 07:23:56,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:23:56,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994837079] [2022-07-12 07:23:56,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:23:56,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:23:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:23:56,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:23:56,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:23:56,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994837079] [2022-07-12 07:23:56,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994837079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:23:56,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:23:56,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:23:56,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284088304] [2022-07-12 07:23:56,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:23:56,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:23:56,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:23:56,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:23:56,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:23:56,916 INFO L87 Difference]: Start difference. First operand 390 states and 503 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:23:57,844 INFO L93 Difference]: Finished difference Result 820 states and 1103 transitions. [2022-07-12 07:23:57,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:23:57,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-07-12 07:23:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:23:57,848 INFO L225 Difference]: With dead ends: 820 [2022-07-12 07:23:57,848 INFO L226 Difference]: Without dead ends: 731 [2022-07-12 07:23:57,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:23:57,849 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 2725 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:23:57,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 1632 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:23:57,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-07-12 07:23:57,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 390. [2022-07-12 07:23:57,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3422459893048129) internal successors, (502), 389 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:57,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 502 transitions. [2022-07-12 07:23:57,884 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 502 transitions. Word has length 76 [2022-07-12 07:23:57,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:23:57,884 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 502 transitions. [2022-07-12 07:23:57,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:23:57,885 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 502 transitions. [2022-07-12 07:23:57,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:23:57,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:23:57,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:23:57,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 07:23:57,886 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:23:57,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:23:57,887 INFO L85 PathProgramCache]: Analyzing trace with hash 684383254, now seen corresponding path program 1 times [2022-07-12 07:23:57,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:23:57,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945428846] [2022-07-12 07:23:57,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:23:57,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:23:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:23:58,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:23:58,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:23:58,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945428846] [2022-07-12 07:23:58,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945428846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:23:58,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:23:58,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:23:58,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374523531] [2022-07-12 07:23:58,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:23:58,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:23:58,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:23:58,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:23:58,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:23:58,082 INFO L87 Difference]: Start difference. First operand 390 states and 502 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:00,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:00,042 INFO L93 Difference]: Finished difference Result 1347 states and 1865 transitions. [2022-07-12 07:24:00,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:24:00,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-12 07:24:00,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:00,048 INFO L225 Difference]: With dead ends: 1347 [2022-07-12 07:24:00,048 INFO L226 Difference]: Without dead ends: 1249 [2022-07-12 07:24:00,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:24:00,049 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 4270 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4270 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:00,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4270 Valid, 2580 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 07:24:00,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-07-12 07:24:00,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 394. [2022-07-12 07:24:00,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3386243386243386) internal successors, (506), 393 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:00,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 506 transitions. [2022-07-12 07:24:00,096 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 506 transitions. Word has length 78 [2022-07-12 07:24:00,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:00,097 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 506 transitions. [2022-07-12 07:24:00,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:00,097 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 506 transitions. [2022-07-12 07:24:00,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:24:00,098 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:00,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:00,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 07:24:00,099 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:00,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:00,099 INFO L85 PathProgramCache]: Analyzing trace with hash 275538026, now seen corresponding path program 1 times [2022-07-12 07:24:00,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:00,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107460211] [2022-07-12 07:24:00,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:00,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:00,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:00,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107460211] [2022-07-12 07:24:00,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107460211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:00,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:00,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:00,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87048847] [2022-07-12 07:24:00,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:00,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:00,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:00,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:00,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:00,225 INFO L87 Difference]: Start difference. First operand 394 states and 506 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:01,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:01,048 INFO L93 Difference]: Finished difference Result 803 states and 1071 transitions. [2022-07-12 07:24:01,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:01,049 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-12 07:24:01,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:01,052 INFO L225 Difference]: With dead ends: 803 [2022-07-12 07:24:01,052 INFO L226 Difference]: Without dead ends: 727 [2022-07-12 07:24:01,052 INFO L412 NwaCegarLoop]: 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 [2022-07-12 07:24:01,053 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 2873 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2873 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:01,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2873 Valid, 1496 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:01,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-12 07:24:01,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2022-07-12 07:24:01,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.335978835978836) internal successors, (505), 393 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:01,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 505 transitions. [2022-07-12 07:24:01,106 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 505 transitions. Word has length 78 [2022-07-12 07:24:01,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:01,107 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 505 transitions. [2022-07-12 07:24:01,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:01,107 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 505 transitions. [2022-07-12 07:24:01,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:24:01,108 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:01,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:01,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 07:24:01,109 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:01,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:01,109 INFO L85 PathProgramCache]: Analyzing trace with hash 643640201, now seen corresponding path program 1 times [2022-07-12 07:24:01,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:01,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653703034] [2022-07-12 07:24:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:01,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:01,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:01,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:01,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653703034] [2022-07-12 07:24:01,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653703034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:01,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:01,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:24:01,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838757517] [2022-07-12 07:24:01,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:01,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:24:01,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:01,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:24:01,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:24:01,289 INFO L87 Difference]: Start difference. First operand 394 states and 505 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:02,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:02,945 INFO L93 Difference]: Finished difference Result 1219 states and 1675 transitions. [2022-07-12 07:24:02,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:24:02,945 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-12 07:24:02,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:02,949 INFO L225 Difference]: With dead ends: 1219 [2022-07-12 07:24:02,949 INFO L226 Difference]: Without dead ends: 1143 [2022-07-12 07:24:02,950 INFO L412 NwaCegarLoop]: 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 [2022-07-12 07:24:02,950 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 4352 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4352 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:02,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4352 Valid, 1942 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:24:02,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2022-07-12 07:24:03,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 398. [2022-07-12 07:24:03,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3324607329842932) internal successors, (509), 397 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 509 transitions. [2022-07-12 07:24:03,002 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 509 transitions. Word has length 78 [2022-07-12 07:24:03,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:03,002 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 509 transitions. [2022-07-12 07:24:03,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:03,003 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 509 transitions. [2022-07-12 07:24:03,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:24:03,004 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:03,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:03,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 07:24:03,004 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:03,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1207054515, now seen corresponding path program 1 times [2022-07-12 07:24:03,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:03,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553258394] [2022-07-12 07:24:03,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:03,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:03,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:03,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:03,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553258394] [2022-07-12 07:24:03,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553258394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:03,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:03,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:03,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817360864] [2022-07-12 07:24:03,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:03,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:03,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:03,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:03,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:03,107 INFO L87 Difference]: Start difference. First operand 398 states and 509 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:03,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:03,994 INFO L93 Difference]: Finished difference Result 799 states and 1065 transitions. [2022-07-12 07:24:03,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:03,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-12 07:24:03,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:03,999 INFO L225 Difference]: With dead ends: 799 [2022-07-12 07:24:04,000 INFO L226 Difference]: Without dead ends: 727 [2022-07-12 07:24:04,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:24:04,003 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 2922 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2922 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:04,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2922 Valid, 1445 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:04,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-12 07:24:04,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 398. [2022-07-12 07:24:04,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3298429319371727) internal successors, (508), 397 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 508 transitions. [2022-07-12 07:24:04,057 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 508 transitions. Word has length 78 [2022-07-12 07:24:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:04,057 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 508 transitions. [2022-07-12 07:24:04,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 508 transitions. [2022-07-12 07:24:04,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:24:04,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:04,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:04,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 07:24:04,062 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:04,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:04,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1808320783, now seen corresponding path program 1 times [2022-07-12 07:24:04,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:04,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729113092] [2022-07-12 07:24:04,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:04,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:04,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:04,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:04,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729113092] [2022-07-12 07:24:04,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729113092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:04,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:04,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:24:04,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764181522] [2022-07-12 07:24:04,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:04,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:24:04,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:04,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:24:04,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:24:04,217 INFO L87 Difference]: Start difference. First operand 398 states and 508 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:05,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:05,164 INFO L93 Difference]: Finished difference Result 842 states and 1112 transitions. [2022-07-12 07:24:05,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 07:24:05,164 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-12 07:24:05,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:05,167 INFO L225 Difference]: With dead ends: 842 [2022-07-12 07:24:05,167 INFO L226 Difference]: Without dead ends: 761 [2022-07-12 07:24:05,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:24:05,168 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 4070 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4070 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:05,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4070 Valid, 1615 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:05,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-07-12 07:24:05,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 405. [2022-07-12 07:24:05,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.3316195372750643) internal successors, (518), 404 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:05,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 518 transitions. [2022-07-12 07:24:05,233 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 518 transitions. Word has length 78 [2022-07-12 07:24:05,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:05,234 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 518 transitions. [2022-07-12 07:24:05,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:05,234 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 518 transitions. [2022-07-12 07:24:05,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:24:05,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:05,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:05,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 07:24:05,236 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:05,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:05,236 INFO L85 PathProgramCache]: Analyzing trace with hash 574449411, now seen corresponding path program 1 times [2022-07-12 07:24:05,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:05,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115177251] [2022-07-12 07:24:05,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:05,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:05,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:05,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115177251] [2022-07-12 07:24:05,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115177251] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:05,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:05,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:05,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897817644] [2022-07-12 07:24:05,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:05,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:05,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:05,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:05,338 INFO L87 Difference]: Start difference. First operand 405 states and 518 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:06,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:06,227 INFO L93 Difference]: Finished difference Result 886 states and 1175 transitions. [2022-07-12 07:24:06,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:06,228 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-12 07:24:06,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:06,231 INFO L225 Difference]: With dead ends: 886 [2022-07-12 07:24:06,231 INFO L226 Difference]: Without dead ends: 743 [2022-07-12 07:24:06,231 INFO L412 NwaCegarLoop]: 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 [2022-07-12 07:24:06,232 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 2166 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:06,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 1797 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:06,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-07-12 07:24:06,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 398. [2022-07-12 07:24:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3272251308900525) internal successors, (507), 397 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 507 transitions. [2022-07-12 07:24:06,291 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 507 transitions. Word has length 78 [2022-07-12 07:24:06,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:06,291 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 507 transitions. [2022-07-12 07:24:06,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:06,292 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 507 transitions. [2022-07-12 07:24:06,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:24:06,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:06,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:06,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 07:24:06,294 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:06,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:06,294 INFO L85 PathProgramCache]: Analyzing trace with hash 688086315, now seen corresponding path program 1 times [2022-07-12 07:24:06,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:06,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214960088] [2022-07-12 07:24:06,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:06,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:06,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:06,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214960088] [2022-07-12 07:24:06,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214960088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:06,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:06,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:06,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795791301] [2022-07-12 07:24:06,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:06,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:06,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:06,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:06,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:06,400 INFO L87 Difference]: Start difference. First operand 398 states and 507 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:07,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:07,278 INFO L93 Difference]: Finished difference Result 803 states and 1066 transitions. [2022-07-12 07:24:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:07,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-12 07:24:07,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:07,282 INFO L225 Difference]: With dead ends: 803 [2022-07-12 07:24:07,282 INFO L226 Difference]: Without dead ends: 727 [2022-07-12 07:24:07,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:24:07,283 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 2901 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2901 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:07,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2901 Valid, 1466 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:07,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-12 07:24:07,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 398. [2022-07-12 07:24:07,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.324607329842932) internal successors, (506), 397 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:07,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 506 transitions. [2022-07-12 07:24:07,352 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 506 transitions. Word has length 78 [2022-07-12 07:24:07,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:07,352 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 506 transitions. [2022-07-12 07:24:07,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:07,352 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 506 transitions. [2022-07-12 07:24:07,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:24:07,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:07,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:07,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 07:24:07,354 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1096931543, now seen corresponding path program 1 times [2022-07-12 07:24:07,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:07,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11669176] [2022-07-12 07:24:07,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:07,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:07,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:07,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11669176] [2022-07-12 07:24:07,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11669176] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:07,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:07,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:07,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973718502] [2022-07-12 07:24:07,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:07,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:07,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:07,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:07,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:07,450 INFO L87 Difference]: Start difference. First operand 398 states and 506 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:08,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:08,256 INFO L93 Difference]: Finished difference Result 833 states and 1107 transitions. [2022-07-12 07:24:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-12 07:24:08,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:08,262 INFO L225 Difference]: With dead ends: 833 [2022-07-12 07:24:08,262 INFO L226 Difference]: Without dead ends: 735 [2022-07-12 07:24:08,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:08,263 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 2029 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:08,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 1783 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:24:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-07-12 07:24:08,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 398. [2022-07-12 07:24:08,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3219895287958114) internal successors, (505), 397 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:08,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 505 transitions. [2022-07-12 07:24:08,329 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 505 transitions. Word has length 78 [2022-07-12 07:24:08,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:08,329 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 505 transitions. [2022-07-12 07:24:08,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:08,329 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 505 transitions. [2022-07-12 07:24:08,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-12 07:24:08,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:08,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:08,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 07:24:08,331 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:08,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:08,331 INFO L85 PathProgramCache]: Analyzing trace with hash 308307099, now seen corresponding path program 1 times [2022-07-12 07:24:08,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:08,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556410192] [2022-07-12 07:24:08,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:08,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:08,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:08,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556410192] [2022-07-12 07:24:08,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556410192] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:08,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:08,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:08,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920382793] [2022-07-12 07:24:08,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:08,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:08,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:08,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:08,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:08,425 INFO L87 Difference]: Start difference. First operand 398 states and 505 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:09,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:09,188 INFO L93 Difference]: Finished difference Result 833 states and 1108 transitions. [2022-07-12 07:24:09,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:09,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-12 07:24:09,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:09,191 INFO L225 Difference]: With dead ends: 833 [2022-07-12 07:24:09,191 INFO L226 Difference]: Without dead ends: 735 [2022-07-12 07:24:09,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:09,192 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1381 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:09,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 1914 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:24:09,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-07-12 07:24:09,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 394. [2022-07-12 07:24:09,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3227513227513228) internal successors, (500), 393 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:09,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 500 transitions. [2022-07-12 07:24:09,254 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 500 transitions. Word has length 79 [2022-07-12 07:24:09,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:09,254 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 500 transitions. [2022-07-12 07:24:09,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:09,255 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 500 transitions. [2022-07-12 07:24:09,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-12 07:24:09,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:09,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:09,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 07:24:09,256 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:09,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:09,257 INFO L85 PathProgramCache]: Analyzing trace with hash -754652965, now seen corresponding path program 1 times [2022-07-12 07:24:09,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:09,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495593952] [2022-07-12 07:24:09,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:09,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:09,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:09,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:09,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495593952] [2022-07-12 07:24:09,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495593952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:09,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:09,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:09,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888534083] [2022-07-12 07:24:09,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:09,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:09,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:09,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:09,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:09,360 INFO L87 Difference]: Start difference. First operand 394 states and 500 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:10,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:10,196 INFO L93 Difference]: Finished difference Result 799 states and 1059 transitions. [2022-07-12 07:24:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:10,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-12 07:24:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:10,199 INFO L225 Difference]: With dead ends: 799 [2022-07-12 07:24:10,199 INFO L226 Difference]: Without dead ends: 723 [2022-07-12 07:24:10,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:10,200 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 1608 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:10,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 1816 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:10,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-07-12 07:24:10,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2022-07-12 07:24:10,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3235294117647058) internal successors, (495), 389 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:10,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 495 transitions. [2022-07-12 07:24:10,281 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 495 transitions. Word has length 79 [2022-07-12 07:24:10,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:10,281 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 495 transitions. [2022-07-12 07:24:10,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:10,282 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 495 transitions. [2022-07-12 07:24:10,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:10,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:10,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:10,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 07:24:10,283 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:10,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:10,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1780834374, now seen corresponding path program 1 times [2022-07-12 07:24:10,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:10,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415620476] [2022-07-12 07:24:10,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:10,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:10,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:10,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:10,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415620476] [2022-07-12 07:24:10,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415620476] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:10,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:10,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:10,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753109529] [2022-07-12 07:24:10,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:10,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:10,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:10,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:10,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:10,437 INFO L87 Difference]: Start difference. First operand 390 states and 495 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:11,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:11,408 INFO L93 Difference]: Finished difference Result 773 states and 1019 transitions. [2022-07-12 07:24:11,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:11,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:11,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:11,411 INFO L225 Difference]: With dead ends: 773 [2022-07-12 07:24:11,411 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:11,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:11,411 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 2247 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:11,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2247 Valid, 2075 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:24:11,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:11,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2022-07-12 07:24:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.320855614973262) internal successors, (494), 389 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:11,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 494 transitions. [2022-07-12 07:24:11,490 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 494 transitions. Word has length 80 [2022-07-12 07:24:11,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:11,490 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 494 transitions. [2022-07-12 07:24:11,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:11,491 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 494 transitions. [2022-07-12 07:24:11,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:11,492 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:11,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:11,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 07:24:11,492 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:11,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:11,493 INFO L85 PathProgramCache]: Analyzing trace with hash 515089470, now seen corresponding path program 1 times [2022-07-12 07:24:11,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:11,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048833174] [2022-07-12 07:24:11,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:11,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:11,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:11,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:11,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048833174] [2022-07-12 07:24:11,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048833174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:11,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:11,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:24:11,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018544280] [2022-07-12 07:24:11,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:11,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:24:11,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:11,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:24:11,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:24:11,684 INFO L87 Difference]: Start difference. First operand 390 states and 494 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:13,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:13,377 INFO L93 Difference]: Finished difference Result 1105 states and 1498 transitions. [2022-07-12 07:24:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:24:13,377 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:13,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:13,380 INFO L225 Difference]: With dead ends: 1105 [2022-07-12 07:24:13,380 INFO L226 Difference]: Without dead ends: 1036 [2022-07-12 07:24:13,381 INFO L412 NwaCegarLoop]: 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 [2022-07-12 07:24:13,382 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 4824 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4824 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:13,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4824 Valid, 2100 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:24:13,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-07-12 07:24:13,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 394. [2022-07-12 07:24:13,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3174603174603174) internal successors, (498), 393 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:13,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 498 transitions. [2022-07-12 07:24:13,455 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 498 transitions. Word has length 80 [2022-07-12 07:24:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:13,455 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 498 transitions. [2022-07-12 07:24:13,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:13,455 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 498 transitions. [2022-07-12 07:24:13,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:13,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:13,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:13,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 07:24:13,457 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:13,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:13,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1270226045, now seen corresponding path program 1 times [2022-07-12 07:24:13,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:13,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741810149] [2022-07-12 07:24:13,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:13,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:13,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:13,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:13,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741810149] [2022-07-12 07:24:13,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741810149] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:13,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:13,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:13,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062708583] [2022-07-12 07:24:13,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:13,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:13,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:13,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:13,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:13,563 INFO L87 Difference]: Start difference. First operand 394 states and 498 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:14,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:14,444 INFO L93 Difference]: Finished difference Result 776 states and 1020 transitions. [2022-07-12 07:24:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:14,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:14,449 INFO L225 Difference]: With dead ends: 776 [2022-07-12 07:24:14,449 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:14,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:14,450 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 2329 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2329 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:14,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2329 Valid, 1889 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:14,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:14,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2022-07-12 07:24:14,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3148148148148149) internal successors, (497), 393 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:14,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 497 transitions. [2022-07-12 07:24:14,528 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 497 transitions. Word has length 80 [2022-07-12 07:24:14,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:14,528 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 497 transitions. [2022-07-12 07:24:14,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:14,529 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 497 transitions. [2022-07-12 07:24:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:14,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:14,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:14,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 07:24:14,530 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:14,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:14,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1112544149, now seen corresponding path program 1 times [2022-07-12 07:24:14,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:14,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769083694] [2022-07-12 07:24:14,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:14,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:14,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:14,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769083694] [2022-07-12 07:24:14,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769083694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:14,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:14,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:14,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311401413] [2022-07-12 07:24:14,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:14,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:14,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:14,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:14,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:14,614 INFO L87 Difference]: Start difference. First operand 394 states and 497 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:15,543 INFO L93 Difference]: Finished difference Result 808 states and 1064 transitions. [2022-07-12 07:24:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:15,544 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:15,546 INFO L225 Difference]: With dead ends: 808 [2022-07-12 07:24:15,546 INFO L226 Difference]: Without dead ends: 727 [2022-07-12 07:24:15,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:15,547 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 2261 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:15,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 1984 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-12 07:24:15,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2022-07-12 07:24:15,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.312169312169312) internal successors, (496), 393 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:15,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 496 transitions. [2022-07-12 07:24:15,631 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 496 transitions. Word has length 80 [2022-07-12 07:24:15,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:15,631 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 496 transitions. [2022-07-12 07:24:15,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:15,631 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 496 transitions. [2022-07-12 07:24:15,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:15,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:15,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:15,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 07:24:15,633 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:15,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:15,633 INFO L85 PathProgramCache]: Analyzing trace with hash -955374417, now seen corresponding path program 1 times [2022-07-12 07:24:15,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:15,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7501006] [2022-07-12 07:24:15,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:15,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:15,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:15,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7501006] [2022-07-12 07:24:15,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7501006] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:15,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:15,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:15,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693512060] [2022-07-12 07:24:15,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:15,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:15,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:15,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:15,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:15,729 INFO L87 Difference]: Start difference. First operand 394 states and 496 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:16,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:16,704 INFO L93 Difference]: Finished difference Result 773 states and 1015 transitions. [2022-07-12 07:24:16,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:16,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:16,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:16,706 INFO L225 Difference]: With dead ends: 773 [2022-07-12 07:24:16,707 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:16,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:16,708 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 2216 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:16,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 2131 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:24:16,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:16,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2022-07-12 07:24:16,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3095238095238095) internal successors, (495), 393 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:16,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 495 transitions. [2022-07-12 07:24:16,802 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 495 transitions. Word has length 80 [2022-07-12 07:24:16,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:16,802 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 495 transitions. [2022-07-12 07:24:16,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:16,802 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 495 transitions. [2022-07-12 07:24:16,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:16,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:16,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:16,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 07:24:16,804 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:16,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:16,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2073965149, now seen corresponding path program 1 times [2022-07-12 07:24:16,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:16,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640343421] [2022-07-12 07:24:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:16,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:16,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:16,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640343421] [2022-07-12 07:24:16,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640343421] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:16,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:16,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:24:16,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983980564] [2022-07-12 07:24:16,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:16,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:24:16,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:16,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:24:16,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:24:16,966 INFO L87 Difference]: Start difference. First operand 394 states and 495 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:18,739 INFO L93 Difference]: Finished difference Result 1041 states and 1397 transitions. [2022-07-12 07:24:18,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:24:18,740 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:18,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:18,743 INFO L225 Difference]: With dead ends: 1041 [2022-07-12 07:24:18,743 INFO L226 Difference]: Without dead ends: 1036 [2022-07-12 07:24:18,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:24:18,745 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 3963 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3963 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:18,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3963 Valid, 2024 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:24:18,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-07-12 07:24:18,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 398. [2022-07-12 07:24:18,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.306282722513089) internal successors, (499), 397 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:18,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 499 transitions. [2022-07-12 07:24:18,815 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 499 transitions. Word has length 80 [2022-07-12 07:24:18,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:18,815 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 499 transitions. [2022-07-12 07:24:18,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:18,815 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 499 transitions. [2022-07-12 07:24:18,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:18,816 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:18,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:18,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 07:24:18,817 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:18,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:18,817 INFO L85 PathProgramCache]: Analyzing trace with hash -306680341, now seen corresponding path program 1 times [2022-07-12 07:24:18,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:18,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464116029] [2022-07-12 07:24:18,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:18,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:18,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:18,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464116029] [2022-07-12 07:24:18,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464116029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:18,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:18,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:24:18,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175149741] [2022-07-12 07:24:18,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:18,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:24:18,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:18,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:24:18,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:24:18,976 INFO L87 Difference]: Start difference. First operand 398 states and 499 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:20,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:20,634 INFO L93 Difference]: Finished difference Result 1099 states and 1487 transitions. [2022-07-12 07:24:20,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:24:20,635 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:20,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:20,637 INFO L225 Difference]: With dead ends: 1099 [2022-07-12 07:24:20,637 INFO L226 Difference]: Without dead ends: 1033 [2022-07-12 07:24:20,638 INFO L412 NwaCegarLoop]: 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 [2022-07-12 07:24:20,638 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 4808 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4808 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 2028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:20,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4808 Valid, 1806 Invalid, 2028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:24:20,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-07-12 07:24:20,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 402. [2022-07-12 07:24:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.3031088082901554) internal successors, (503), 401 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:20,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 503 transitions. [2022-07-12 07:24:20,715 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 503 transitions. Word has length 80 [2022-07-12 07:24:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:20,715 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 503 transitions. [2022-07-12 07:24:20,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:20,715 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 503 transitions. [2022-07-12 07:24:20,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:20,716 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:20,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:20,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 07:24:20,717 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:20,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:20,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1961273491, now seen corresponding path program 1 times [2022-07-12 07:24:20,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:20,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153256924] [2022-07-12 07:24:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:20,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:20,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:20,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:20,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153256924] [2022-07-12 07:24:20,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153256924] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:20,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:20,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:20,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860596642] [2022-07-12 07:24:20,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:20,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:20,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:20,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:20,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:20,814 INFO L87 Difference]: Start difference. First operand 402 states and 503 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:21,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:21,766 INFO L93 Difference]: Finished difference Result 771 states and 1010 transitions. [2022-07-12 07:24:21,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:21,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:21,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:21,768 INFO L225 Difference]: With dead ends: 771 [2022-07-12 07:24:21,768 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:21,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:21,769 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2303 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2303 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:21,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2303 Valid, 1926 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:21,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:21,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-07-12 07:24:21,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.3005181347150259) internal successors, (502), 401 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 502 transitions. [2022-07-12 07:24:21,859 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 502 transitions. Word has length 80 [2022-07-12 07:24:21,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:21,859 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 502 transitions. [2022-07-12 07:24:21,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 502 transitions. [2022-07-12 07:24:21,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:21,860 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:21,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:21,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-12 07:24:21,860 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:21,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:21,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1780916949, now seen corresponding path program 1 times [2022-07-12 07:24:21,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:21,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206356004] [2022-07-12 07:24:21,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:21,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:21,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:21,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:21,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206356004] [2022-07-12 07:24:21,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206356004] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:21,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:21,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:21,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907776125] [2022-07-12 07:24:21,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:21,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:21,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:21,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:21,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:21,946 INFO L87 Difference]: Start difference. First operand 402 states and 502 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:22,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:22,726 INFO L93 Difference]: Finished difference Result 820 states and 1071 transitions. [2022-07-12 07:24:22,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:22,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:22,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:22,728 INFO L225 Difference]: With dead ends: 820 [2022-07-12 07:24:22,728 INFO L226 Difference]: Without dead ends: 739 [2022-07-12 07:24:22,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:22,729 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1871 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:22,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1871 Valid, 1605 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:24:22,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-07-12 07:24:22,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 402. [2022-07-12 07:24:22,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2979274611398963) internal successors, (501), 401 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:22,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 501 transitions. [2022-07-12 07:24:22,804 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 501 transitions. Word has length 80 [2022-07-12 07:24:22,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:22,805 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 501 transitions. [2022-07-12 07:24:22,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:22,805 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 501 transitions. [2022-07-12 07:24:22,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:22,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:22,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:22,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-12 07:24:22,806 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:22,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:22,806 INFO L85 PathProgramCache]: Analyzing trace with hash 601853245, now seen corresponding path program 1 times [2022-07-12 07:24:22,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:22,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974637418] [2022-07-12 07:24:22,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:22,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:22,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:22,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:22,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974637418] [2022-07-12 07:24:22,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974637418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:22,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:22,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:22,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654705689] [2022-07-12 07:24:22,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:22,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:22,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:22,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:22,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:22,920 INFO L87 Difference]: Start difference. First operand 402 states and 501 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:23,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:23,840 INFO L93 Difference]: Finished difference Result 776 states and 1013 transitions. [2022-07-12 07:24:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:23,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:23,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:23,842 INFO L225 Difference]: With dead ends: 776 [2022-07-12 07:24:23,842 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:23,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:23,843 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 2275 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:23,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 1977 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:23,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:23,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-07-12 07:24:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2953367875647668) internal successors, (500), 401 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 500 transitions. [2022-07-12 07:24:23,923 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 500 transitions. Word has length 80 [2022-07-12 07:24:23,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:23,923 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 500 transitions. [2022-07-12 07:24:23,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:23,924 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 500 transitions. [2022-07-12 07:24:23,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:23,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:23,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:23,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-12 07:24:23,924 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:23,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:23,925 INFO L85 PathProgramCache]: Analyzing trace with hash -953833721, now seen corresponding path program 1 times [2022-07-12 07:24:23,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:23,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271613054] [2022-07-12 07:24:23,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:23,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:24,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:24,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:24,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271613054] [2022-07-12 07:24:24,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271613054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:24,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:24,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:24,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110134576] [2022-07-12 07:24:24,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:24,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:24,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:24,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:24,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:24,008 INFO L87 Difference]: Start difference. First operand 402 states and 500 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:24,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:24,892 INFO L93 Difference]: Finished difference Result 851 states and 1111 transitions. [2022-07-12 07:24:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:24,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:24,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:24,896 INFO L225 Difference]: With dead ends: 851 [2022-07-12 07:24:24,896 INFO L226 Difference]: Without dead ends: 747 [2022-07-12 07:24:24,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:24,897 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1842 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:24,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 1945 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:24,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2022-07-12 07:24:24,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 402. [2022-07-12 07:24:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2927461139896372) internal successors, (499), 401 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 499 transitions. [2022-07-12 07:24:24,979 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 499 transitions. Word has length 80 [2022-07-12 07:24:24,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:24,979 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 499 transitions. [2022-07-12 07:24:24,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:24,980 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 499 transitions. [2022-07-12 07:24:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:24,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:24,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:24,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-12 07:24:24,981 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:24,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1702835234, now seen corresponding path program 1 times [2022-07-12 07:24:24,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:24,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420823471] [2022-07-12 07:24:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:24,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:25,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:25,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:25,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420823471] [2022-07-12 07:24:25,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420823471] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:25,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:25,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:25,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532923691] [2022-07-12 07:24:25,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:25,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:25,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:25,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:25,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:25,097 INFO L87 Difference]: Start difference. First operand 402 states and 499 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:26,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:26,006 INFO L93 Difference]: Finished difference Result 712 states and 915 transitions. [2022-07-12 07:24:26,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:26,006 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:26,008 INFO L225 Difference]: With dead ends: 712 [2022-07-12 07:24:26,008 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:26,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:26,009 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 2265 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:26,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 1978 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:26,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:26,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-07-12 07:24:26,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2901554404145077) internal successors, (498), 401 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:26,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 498 transitions. [2022-07-12 07:24:26,096 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 498 transitions. Word has length 80 [2022-07-12 07:24:26,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:26,097 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 498 transitions. [2022-07-12 07:24:26,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:26,097 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 498 transitions. [2022-07-12 07:24:26,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:26,098 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:26,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:26,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-12 07:24:26,098 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:26,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:26,099 INFO L85 PathProgramCache]: Analyzing trace with hash 209361868, now seen corresponding path program 1 times [2022-07-12 07:24:26,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:26,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299610457] [2022-07-12 07:24:26,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:26,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:26,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:26,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299610457] [2022-07-12 07:24:26,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299610457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:26,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:26,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:26,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538272503] [2022-07-12 07:24:26,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:26,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:26,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:26,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:26,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:26,186 INFO L87 Difference]: Start difference. First operand 402 states and 498 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:27,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:27,073 INFO L93 Difference]: Finished difference Result 756 states and 970 transitions. [2022-07-12 07:24:27,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:27,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:27,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:27,075 INFO L225 Difference]: With dead ends: 756 [2022-07-12 07:24:27,075 INFO L226 Difference]: Without dead ends: 739 [2022-07-12 07:24:27,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:27,077 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 2299 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2299 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:27,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2299 Valid, 1990 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:24:27,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-07-12 07:24:27,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 402. [2022-07-12 07:24:27,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2875647668393781) internal successors, (497), 401 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:27,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 497 transitions. [2022-07-12 07:24:27,167 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 497 transitions. Word has length 80 [2022-07-12 07:24:27,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:27,168 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 497 transitions. [2022-07-12 07:24:27,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:27,168 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 497 transitions. [2022-07-12 07:24:27,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:27,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:27,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:27,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-12 07:24:27,169 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:27,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:27,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1191963760, now seen corresponding path program 1 times [2022-07-12 07:24:27,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:27,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744201066] [2022-07-12 07:24:27,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:27,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:27,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:27,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:27,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744201066] [2022-07-12 07:24:27,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744201066] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:27,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:27,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:27,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015719258] [2022-07-12 07:24:27,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:27,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:27,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:27,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:27,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:27,264 INFO L87 Difference]: Start difference. First operand 402 states and 497 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:28,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:28,254 INFO L93 Difference]: Finished difference Result 773 states and 1006 transitions. [2022-07-12 07:24:28,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:28,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:28,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:28,256 INFO L225 Difference]: With dead ends: 773 [2022-07-12 07:24:28,256 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:28,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:28,257 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 2236 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2236 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:28,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2236 Valid, 2029 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:28,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:28,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-07-12 07:24:28,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2849740932642486) internal successors, (496), 401 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:28,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 496 transitions. [2022-07-12 07:24:28,356 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 496 transitions. Word has length 80 [2022-07-12 07:24:28,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:28,356 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 496 transitions. [2022-07-12 07:24:28,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:28,356 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 496 transitions. [2022-07-12 07:24:28,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:24:28,357 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:28,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:28,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-12 07:24:28,357 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:28,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:28,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1836995487, now seen corresponding path program 1 times [2022-07-12 07:24:28,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:28,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637844328] [2022-07-12 07:24:28,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:28,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:28,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:28,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:28,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637844328] [2022-07-12 07:24:28,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637844328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:28,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:28,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:24:28,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192339982] [2022-07-12 07:24:28,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:28,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:24:28,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:28,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:24:28,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:24:28,508 INFO L87 Difference]: Start difference. First operand 402 states and 496 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:30,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:30,271 INFO L93 Difference]: Finished difference Result 1041 states and 1388 transitions. [2022-07-12 07:24:30,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:24:30,271 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-12 07:24:30,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:30,274 INFO L225 Difference]: With dead ends: 1041 [2022-07-12 07:24:30,274 INFO L226 Difference]: Without dead ends: 1036 [2022-07-12 07:24:30,274 INFO L412 NwaCegarLoop]: 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 [2022-07-12 07:24:30,274 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 3799 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3799 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 2249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:30,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3799 Valid, 2321 Invalid, 2249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:24:30,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-07-12 07:24:30,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 406. [2022-07-12 07:24:30,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 390 states have (on average 1.2820512820512822) internal successors, (500), 405 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:30,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 500 transitions. [2022-07-12 07:24:30,374 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 500 transitions. Word has length 80 [2022-07-12 07:24:30,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:30,375 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 500 transitions. [2022-07-12 07:24:30,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:30,375 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 500 transitions. [2022-07-12 07:24:30,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-12 07:24:30,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:30,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:30,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-12 07:24:30,376 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:30,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:30,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1478263256, now seen corresponding path program 1 times [2022-07-12 07:24:30,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:30,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056858163] [2022-07-12 07:24:30,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:30,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:30,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:30,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056858163] [2022-07-12 07:24:30,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056858163] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:30,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:30,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:30,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033885830] [2022-07-12 07:24:30,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:30,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:30,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:30,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:30,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:30,456 INFO L87 Difference]: Start difference. First operand 406 states and 500 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:31,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:31,312 INFO L93 Difference]: Finished difference Result 776 states and 1007 transitions. [2022-07-12 07:24:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:31,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-12 07:24:31,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:31,315 INFO L225 Difference]: With dead ends: 776 [2022-07-12 07:24:31,316 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:31,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:31,317 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 2637 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2637 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:31,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2637 Valid, 1722 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:24:31,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-07-12 07:24:31,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.282383419689119) internal successors, (495), 401 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:31,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 495 transitions. [2022-07-12 07:24:31,427 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 495 transitions. Word has length 81 [2022-07-12 07:24:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:31,428 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 495 transitions. [2022-07-12 07:24:31,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:31,428 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 495 transitions. [2022-07-12 07:24:31,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-12 07:24:31,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:31,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:31,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-12 07:24:31,429 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:31,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:31,429 INFO L85 PathProgramCache]: Analyzing trace with hash -397757345, now seen corresponding path program 1 times [2022-07-12 07:24:31,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:31,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783730409] [2022-07-12 07:24:31,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:31,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:31,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:31,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783730409] [2022-07-12 07:24:31,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783730409] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:31,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:31,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:31,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222819441] [2022-07-12 07:24:31,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:31,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:31,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:31,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:31,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:31,509 INFO L87 Difference]: Start difference. First operand 402 states and 495 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:32,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:32,458 INFO L93 Difference]: Finished difference Result 712 states and 910 transitions. [2022-07-12 07:24:32,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:32,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-12 07:24:32,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:32,461 INFO L225 Difference]: With dead ends: 712 [2022-07-12 07:24:32,461 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:32,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:32,462 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 1810 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:32,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 1779 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:32,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:32,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 398. [2022-07-12 07:24:32,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.2827225130890052) internal successors, (490), 397 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:32,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 490 transitions. [2022-07-12 07:24:32,558 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 490 transitions. Word has length 81 [2022-07-12 07:24:32,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:32,558 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 490 transitions. [2022-07-12 07:24:32,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:32,559 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 490 transitions. [2022-07-12 07:24:32,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-12 07:24:32,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:32,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:32,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-12 07:24:32,559 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:32,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:32,560 INFO L85 PathProgramCache]: Analyzing trace with hash 500388118, now seen corresponding path program 1 times [2022-07-12 07:24:32,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:32,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363149289] [2022-07-12 07:24:32,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:32,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:32,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:32,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:32,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363149289] [2022-07-12 07:24:32,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363149289] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:32,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:32,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:32,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509189567] [2022-07-12 07:24:32,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:32,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:32,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:32,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:32,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:32,650 INFO L87 Difference]: Start difference. First operand 398 states and 490 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:33,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:33,647 INFO L93 Difference]: Finished difference Result 773 states and 1002 transitions. [2022-07-12 07:24:33,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:33,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-12 07:24:33,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:33,657 INFO L225 Difference]: With dead ends: 773 [2022-07-12 07:24:33,657 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:33,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:33,658 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 2394 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:33,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2394 Valid, 1777 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:33,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:33,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2022-07-12 07:24:33,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.283068783068783) internal successors, (485), 393 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 485 transitions. [2022-07-12 07:24:33,744 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 485 transitions. Word has length 81 [2022-07-12 07:24:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:33,744 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 485 transitions. [2022-07-12 07:24:33,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 485 transitions. [2022-07-12 07:24:33,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-12 07:24:33,745 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:33,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:33,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-12 07:24:33,745 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:33,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash 846117342, now seen corresponding path program 1 times [2022-07-12 07:24:33,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:33,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532038456] [2022-07-12 07:24:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:33,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:33,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:33,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532038456] [2022-07-12 07:24:33,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532038456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:33,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:33,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:33,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693989601] [2022-07-12 07:24:33,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:33,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:33,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:33,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:33,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:33,825 INFO L87 Difference]: Start difference. First operand 394 states and 485 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:34,819 INFO L93 Difference]: Finished difference Result 712 states and 908 transitions. [2022-07-12 07:24:34,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:34,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-12 07:24:34,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:34,821 INFO L225 Difference]: With dead ends: 712 [2022-07-12 07:24:34,821 INFO L226 Difference]: Without dead ends: 707 [2022-07-12 07:24:34,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:24:34,822 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1792 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:34,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 1795 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:34,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-12 07:24:34,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2022-07-12 07:24:34,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.2834224598930482) internal successors, (480), 389 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 480 transitions. [2022-07-12 07:24:34,912 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 480 transitions. Word has length 81 [2022-07-12 07:24:34,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:34,912 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 480 transitions. [2022-07-12 07:24:34,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:34,913 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 480 transitions. [2022-07-12 07:24:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-12 07:24:34,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:34,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:34,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-12 07:24:34,914 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:34,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:34,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1125287833, now seen corresponding path program 1 times [2022-07-12 07:24:34,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:34,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848371011] [2022-07-12 07:24:34,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:34,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:35,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:35,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:35,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848371011] [2022-07-12 07:24:35,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848371011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:35,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:35,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:24:35,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88710192] [2022-07-12 07:24:35,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:35,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 07:24:35,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:35,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 07:24:35,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:24:35,119 INFO L87 Difference]: Start difference. First operand 390 states and 480 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:36,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:36,103 INFO L93 Difference]: Finished difference Result 1027 states and 1321 transitions. [2022-07-12 07:24:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 07:24:36,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-12 07:24:36,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:36,105 INFO L225 Difference]: With dead ends: 1027 [2022-07-12 07:24:36,105 INFO L226 Difference]: Without dead ends: 846 [2022-07-12 07:24:36,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:24:36,107 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 2528 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2528 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:36,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2528 Valid, 2557 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:24:36,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-07-12 07:24:36,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 273. [2022-07-12 07:24:36,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 262 states have (on average 1.2709923664122138) internal successors, (333), 272 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:36,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 333 transitions. [2022-07-12 07:24:36,192 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 333 transitions. Word has length 82 [2022-07-12 07:24:36,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:36,192 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 333 transitions. [2022-07-12 07:24:36,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:36,192 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 333 transitions. [2022-07-12 07:24:36,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-12 07:24:36,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:36,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:36,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-12 07:24:36,193 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:36,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:36,193 INFO L85 PathProgramCache]: Analyzing trace with hash 996849594, now seen corresponding path program 1 times [2022-07-12 07:24:36,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:36,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926021209] [2022-07-12 07:24:36,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:36,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:36,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:36,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926021209] [2022-07-12 07:24:36,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926021209] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:36,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:36,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:24:36,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155000492] [2022-07-12 07:24:36,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:36,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:24:36,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:36,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:24:36,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:24:36,436 INFO L87 Difference]: Start difference. First operand 273 states and 333 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:37,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:37,383 INFO L93 Difference]: Finished difference Result 786 states and 1055 transitions. [2022-07-12 07:24:37,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:24:37,384 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-12 07:24:37,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:37,385 INFO L225 Difference]: With dead ends: 786 [2022-07-12 07:24:37,385 INFO L226 Difference]: Without dead ends: 689 [2022-07-12 07:24:37,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:24:37,386 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 2038 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:37,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 3848 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:24:37,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-07-12 07:24:37,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 240. [2022-07-12 07:24:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 232 states have (on average 1.2629310344827587) internal successors, (293), 239 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:37,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 293 transitions. [2022-07-12 07:24:37,465 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 293 transitions. Word has length 82 [2022-07-12 07:24:37,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:37,466 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 293 transitions. [2022-07-12 07:24:37,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:37,466 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 293 transitions. [2022-07-12 07:24:37,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-12 07:24:37,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:37,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:37,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-12 07:24:37,466 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:37,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:37,467 INFO L85 PathProgramCache]: Analyzing trace with hash 504555190, now seen corresponding path program 1 times [2022-07-12 07:24:37,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:37,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818804926] [2022-07-12 07:24:37,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:37,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:37,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:37,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818804926] [2022-07-12 07:24:37,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818804926] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:37,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:37,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:24:37,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720717247] [2022-07-12 07:24:37,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:37,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:24:37,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:37,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:24:37,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:24:37,728 INFO L87 Difference]: Start difference. First operand 240 states and 293 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:38,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:38,659 INFO L93 Difference]: Finished difference Result 612 states and 786 transitions. [2022-07-12 07:24:38,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:38,660 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-12 07:24:38,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:38,661 INFO L225 Difference]: With dead ends: 612 [2022-07-12 07:24:38,661 INFO L226 Difference]: Without dead ends: 544 [2022-07-12 07:24:38,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-07-12 07:24:38,661 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1754 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:38,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 2121 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:24:38,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-07-12 07:24:38,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 236. [2022-07-12 07:24:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 229 states have (on average 1.25764192139738) internal successors, (288), 235 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:38,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 288 transitions. [2022-07-12 07:24:38,742 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 288 transitions. Word has length 82 [2022-07-12 07:24:38,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:38,742 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 288 transitions. [2022-07-12 07:24:38,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 288 transitions. [2022-07-12 07:24:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-12 07:24:38,743 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:38,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:38,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-12 07:24:38,743 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:38,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:38,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1900616581, now seen corresponding path program 1 times [2022-07-12 07:24:38,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:38,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088905] [2022-07-12 07:24:38,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:38,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:39,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:39,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:39,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088905] [2022-07-12 07:24:39,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:39,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:39,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-12 07:24:39,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611928199] [2022-07-12 07:24:39,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:39,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 07:24:39,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:39,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 07:24:39,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-12 07:24:39,198 INFO L87 Difference]: Start difference. First operand 236 states and 288 transitions. Second operand has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:40,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:40,809 INFO L93 Difference]: Finished difference Result 789 states and 1053 transitions. [2022-07-12 07:24:40,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 07:24:40,809 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-12 07:24:40,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:40,810 INFO L225 Difference]: With dead ends: 789 [2022-07-12 07:24:40,810 INFO L226 Difference]: Without dead ends: 666 [2022-07-12 07:24:40,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-07-12 07:24:40,811 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 2015 mSDsluCounter, 4523 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 5116 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:40,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2015 Valid, 5116 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:24:40,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-07-12 07:24:40,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 212. [2022-07-12 07:24:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.2475728155339805) internal successors, (257), 211 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:40,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 257 transitions. [2022-07-12 07:24:40,891 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 257 transitions. Word has length 82 [2022-07-12 07:24:40,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:40,891 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 257 transitions. [2022-07-12 07:24:40,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:40,891 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 257 transitions. [2022-07-12 07:24:40,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-12 07:24:40,891 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:40,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:40,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-12 07:24:40,892 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:40,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:40,892 INFO L85 PathProgramCache]: Analyzing trace with hash -823147502, now seen corresponding path program 1 times [2022-07-12 07:24:40,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:40,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873472902] [2022-07-12 07:24:40,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:40,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:41,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:41,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:41,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873472902] [2022-07-12 07:24:41,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873472902] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:41,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:41,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:41,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647834011] [2022-07-12 07:24:41,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:41,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:41,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:41,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:41,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:41,014 INFO L87 Difference]: Start difference. First operand 212 states and 257 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:41,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:41,497 INFO L93 Difference]: Finished difference Result 322 states and 400 transitions. [2022-07-12 07:24:41,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 07:24:41,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-12 07:24:41,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:41,498 INFO L225 Difference]: With dead ends: 322 [2022-07-12 07:24:41,498 INFO L226 Difference]: Without dead ends: 315 [2022-07-12 07:24:41,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-12 07:24:41,499 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1127 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:41,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 845 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:24:41,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-07-12 07:24:41,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 212. [2022-07-12 07:24:41,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.2427184466019416) internal successors, (256), 211 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:41,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 256 transitions. [2022-07-12 07:24:41,580 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 256 transitions. Word has length 83 [2022-07-12 07:24:41,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:41,580 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 256 transitions. [2022-07-12 07:24:41,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:41,580 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 256 transitions. [2022-07-12 07:24:41,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-12 07:24:41,581 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:41,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:41,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-12 07:24:41,581 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:41,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:41,582 INFO L85 PathProgramCache]: Analyzing trace with hash -892730834, now seen corresponding path program 1 times [2022-07-12 07:24:41,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:41,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526146958] [2022-07-12 07:24:41,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:41,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:41,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:41,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:41,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526146958] [2022-07-12 07:24:41,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526146958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:41,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:41,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:41,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96031380] [2022-07-12 07:24:41,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:41,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:41,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:41,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:41,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:41,673 INFO L87 Difference]: Start difference. First operand 212 states and 256 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:42,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:42,337 INFO L93 Difference]: Finished difference Result 527 states and 702 transitions. [2022-07-12 07:24:42,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:42,338 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-12 07:24:42,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:42,338 INFO L225 Difference]: With dead ends: 527 [2022-07-12 07:24:42,339 INFO L226 Difference]: Without dead ends: 445 [2022-07-12 07:24:42,339 INFO L412 NwaCegarLoop]: 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 [2022-07-12 07:24:42,339 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 813 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:42,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1037 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:24:42,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-07-12 07:24:42,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 212. [2022-07-12 07:24:42,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.2378640776699028) internal successors, (255), 211 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 255 transitions. [2022-07-12 07:24:42,424 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 255 transitions. Word has length 83 [2022-07-12 07:24:42,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:42,425 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 255 transitions. [2022-07-12 07:24:42,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:42,425 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 255 transitions. [2022-07-12 07:24:42,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-12 07:24:42,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:42,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:42,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-12 07:24:42,425 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:42,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:42,426 INFO L85 PathProgramCache]: Analyzing trace with hash -993145316, now seen corresponding path program 1 times [2022-07-12 07:24:42,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:42,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104612525] [2022-07-12 07:24:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:42,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:42,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:42,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104612525] [2022-07-12 07:24:42,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104612525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:42,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:42,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:24:42,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598837845] [2022-07-12 07:24:42,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:42,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:24:42,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:42,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:24:42,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:24:42,698 INFO L87 Difference]: Start difference. First operand 212 states and 255 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:43,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:43,847 INFO L93 Difference]: Finished difference Result 495 states and 629 transitions. [2022-07-12 07:24:43,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 07:24:43,848 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-12 07:24:43,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:43,849 INFO L225 Difference]: With dead ends: 495 [2022-07-12 07:24:43,849 INFO L226 Difference]: Without dead ends: 491 [2022-07-12 07:24:43,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-07-12 07:24:43,850 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1558 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:43,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 1906 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:24:43,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-12 07:24:43,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 208. [2022-07-12 07:24:43,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.2364532019704433) internal successors, (251), 207 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:43,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 251 transitions. [2022-07-12 07:24:43,969 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 251 transitions. Word has length 83 [2022-07-12 07:24:43,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:43,969 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 251 transitions. [2022-07-12 07:24:43,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:43,970 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 251 transitions. [2022-07-12 07:24:43,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-12 07:24:43,970 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:43,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:43,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-12 07:24:43,971 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:43,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:43,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2054330386, now seen corresponding path program 1 times [2022-07-12 07:24:43,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:43,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135544745] [2022-07-12 07:24:43,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:43,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:44,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:44,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:44,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135544745] [2022-07-12 07:24:44,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135544745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:44,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:44,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:24:44,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849175314] [2022-07-12 07:24:44,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:44,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:24:44,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:44,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:24:44,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:24:44,245 INFO L87 Difference]: Start difference. First operand 208 states and 251 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:45,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:45,184 INFO L93 Difference]: Finished difference Result 541 states and 707 transitions. [2022-07-12 07:24:45,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:45,184 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-12 07:24:45,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:45,185 INFO L225 Difference]: With dead ends: 541 [2022-07-12 07:24:45,185 INFO L226 Difference]: Without dead ends: 476 [2022-07-12 07:24:45,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-07-12 07:24:45,186 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1566 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:45,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 2020 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:24:45,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-07-12 07:24:45,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 207. [2022-07-12 07:24:45,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.2326732673267327) internal successors, (249), 206 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 249 transitions. [2022-07-12 07:24:45,271 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 249 transitions. Word has length 83 [2022-07-12 07:24:45,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:45,271 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 249 transitions. [2022-07-12 07:24:45,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:45,271 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 249 transitions. [2022-07-12 07:24:45,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-12 07:24:45,271 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:45,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:45,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-12 07:24:45,272 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:45,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:45,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1521304832, now seen corresponding path program 1 times [2022-07-12 07:24:45,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:45,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582352516] [2022-07-12 07:24:45,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:45,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:45,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:45,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582352516] [2022-07-12 07:24:45,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582352516] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:45,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:45,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:24:45,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442001543] [2022-07-12 07:24:45,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:45,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:24:45,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:45,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:24:45,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:24:45,562 INFO L87 Difference]: Start difference. First operand 207 states and 249 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:46,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:46,576 INFO L93 Difference]: Finished difference Result 488 states and 632 transitions. [2022-07-12 07:24:46,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:24:46,577 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-12 07:24:46,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:46,577 INFO L225 Difference]: With dead ends: 488 [2022-07-12 07:24:46,577 INFO L226 Difference]: Without dead ends: 478 [2022-07-12 07:24:46,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-07-12 07:24:46,578 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 1146 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 3381 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:46,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 3381 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:24:46,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-07-12 07:24:46,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 197. [2022-07-12 07:24:46,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.233160621761658) internal successors, (238), 196 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:46,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 238 transitions. [2022-07-12 07:24:46,665 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 238 transitions. Word has length 83 [2022-07-12 07:24:46,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:46,665 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 238 transitions. [2022-07-12 07:24:46,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:46,665 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 238 transitions. [2022-07-12 07:24:46,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-12 07:24:46,665 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:46,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:46,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-12 07:24:46,666 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:46,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:46,666 INFO L85 PathProgramCache]: Analyzing trace with hash -7222703, now seen corresponding path program 1 times [2022-07-12 07:24:46,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:46,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888425131] [2022-07-12 07:24:46,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:46,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:46,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:46,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:46,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888425131] [2022-07-12 07:24:46,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888425131] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:46,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:46,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:24:46,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977768428] [2022-07-12 07:24:46,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:46,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:24:46,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:46,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:24:46,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:24:46,802 INFO L87 Difference]: Start difference. First operand 197 states and 238 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:47,896 INFO L93 Difference]: Finished difference Result 472 states and 619 transitions. [2022-07-12 07:24:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:24:47,896 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-12 07:24:47,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:47,897 INFO L225 Difference]: With dead ends: 472 [2022-07-12 07:24:47,897 INFO L226 Difference]: Without dead ends: 465 [2022-07-12 07:24:47,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-07-12 07:24:47,898 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 1796 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:47,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 974 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:24:47,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-07-12 07:24:47,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 201. [2022-07-12 07:24:47,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 197 states have (on average 1.2284263959390862) internal successors, (242), 200 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:47,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 242 transitions. [2022-07-12 07:24:47,989 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 242 transitions. Word has length 84 [2022-07-12 07:24:47,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:47,990 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 242 transitions. [2022-07-12 07:24:47,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:47,990 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 242 transitions. [2022-07-12 07:24:47,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 07:24:47,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:47,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:47,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-12 07:24:47,990 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:47,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:47,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1767300528, now seen corresponding path program 1 times [2022-07-12 07:24:47,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:47,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638205084] [2022-07-12 07:24:47,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:47,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:48,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:48,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:48,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638205084] [2022-07-12 07:24:48,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638205084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:48,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:48,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:24:48,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851152139] [2022-07-12 07:24:48,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:48,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:24:48,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:24:48,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:24:48,235 INFO L87 Difference]: Start difference. First operand 201 states and 242 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:49,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:49,522 INFO L93 Difference]: Finished difference Result 722 states and 980 transitions. [2022-07-12 07:24:49,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:24:49,523 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-07-12 07:24:49,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:49,524 INFO L225 Difference]: With dead ends: 722 [2022-07-12 07:24:49,524 INFO L226 Difference]: Without dead ends: 716 [2022-07-12 07:24:49,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:24:49,525 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 1570 mSDsluCounter, 3242 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 3718 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:49,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 3718 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:24:49,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-07-12 07:24:49,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 195. [2022-07-12 07:24:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 192 states have (on average 1.2291666666666667) internal successors, (236), 194 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 236 transitions. [2022-07-12 07:24:49,618 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 236 transitions. Word has length 85 [2022-07-12 07:24:49,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:49,619 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 236 transitions. [2022-07-12 07:24:49,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 236 transitions. [2022-07-12 07:24:49,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 07:24:49,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:49,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:49,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-12 07:24:49,620 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:49,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:49,621 INFO L85 PathProgramCache]: Analyzing trace with hash 645292930, now seen corresponding path program 1 times [2022-07-12 07:24:49,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:49,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63990865] [2022-07-12 07:24:49,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:49,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:50,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:50,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:50,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63990865] [2022-07-12 07:24:50,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63990865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:50,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:50,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-07-12 07:24:50,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64188601] [2022-07-12 07:24:50,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:50,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-12 07:24:50,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:50,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-12 07:24:50,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-07-12 07:24:50,278 INFO L87 Difference]: Start difference. First operand 195 states and 236 transitions. Second operand has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:53,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:53,997 INFO L93 Difference]: Finished difference Result 741 states and 957 transitions. [2022-07-12 07:24:53,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-12 07:24:53,997 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-07-12 07:24:53,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:53,998 INFO L225 Difference]: With dead ends: 741 [2022-07-12 07:24:53,998 INFO L226 Difference]: Without dead ends: 733 [2022-07-12 07:24:53,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=365, Invalid=1891, Unknown=0, NotChecked=0, Total=2256 [2022-07-12 07:24:53,999 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 2151 mSDsluCounter, 8531 mSDsCounter, 0 mSdLazyCounter, 4644 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 9166 SdHoareTripleChecker+Invalid, 4725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 4644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:54,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 9166 Invalid, 4725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 4644 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 07:24:54,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-07-12 07:24:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 214. [2022-07-12 07:24:54,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 211 states have (on average 1.2274881516587677) internal successors, (259), 213 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 259 transitions. [2022-07-12 07:24:54,129 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 259 transitions. Word has length 85 [2022-07-12 07:24:54,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:54,129 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 259 transitions. [2022-07-12 07:24:54,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 259 transitions. [2022-07-12 07:24:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 07:24:54,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:54,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:54,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-12 07:24:54,130 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:54,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:54,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1708289536, now seen corresponding path program 1 times [2022-07-12 07:24:54,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:54,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868716895] [2022-07-12 07:24:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:54,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:54,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:54,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868716895] [2022-07-12 07:24:54,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868716895] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:54,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:54,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:24:54,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81724878] [2022-07-12 07:24:54,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:54,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:24:54,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:54,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:24:54,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:24:54,211 INFO L87 Difference]: Start difference. First operand 214 states and 259 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:54,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:54,759 INFO L93 Difference]: Finished difference Result 310 states and 387 transitions. [2022-07-12 07:24:54,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 07:24:54,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-07-12 07:24:54,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:54,761 INFO L225 Difference]: With dead ends: 310 [2022-07-12 07:24:54,761 INFO L226 Difference]: Without dead ends: 303 [2022-07-12 07:24:54,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-07-12 07:24:54,761 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 498 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:54,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 825 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:24:54,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-07-12 07:24:54,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 210. [2022-07-12 07:24:54,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 207 states have (on average 1.2270531400966183) internal successors, (254), 209 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:54,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 254 transitions. [2022-07-12 07:24:54,870 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 254 transitions. Word has length 85 [2022-07-12 07:24:54,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:54,870 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 254 transitions. [2022-07-12 07:24:54,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:54,871 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 254 transitions. [2022-07-12 07:24:54,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-12 07:24:54,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:54,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:54,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-12 07:24:54,872 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:54,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:54,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1988293680, now seen corresponding path program 1 times [2022-07-12 07:24:54,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:54,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668881549] [2022-07-12 07:24:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:54,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:55,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:55,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:55,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668881549] [2022-07-12 07:24:55,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668881549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:55,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:55,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-12 07:24:55,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926107076] [2022-07-12 07:24:55,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:55,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 07:24:55,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:55,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 07:24:55,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-12 07:24:55,337 INFO L87 Difference]: Start difference. First operand 210 states and 254 transitions. Second operand has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:56,865 INFO L93 Difference]: Finished difference Result 404 states and 515 transitions. [2022-07-12 07:24:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-12 07:24:56,866 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-07-12 07:24:56,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:56,866 INFO L225 Difference]: With dead ends: 404 [2022-07-12 07:24:56,866 INFO L226 Difference]: Without dead ends: 396 [2022-07-12 07:24:56,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:24:56,867 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1442 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:56,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 3708 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:24:56,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-07-12 07:24:56,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 191. [2022-07-12 07:24:56,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 188 states have (on average 1.2234042553191489) internal successors, (230), 190 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 230 transitions. [2022-07-12 07:24:56,974 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 230 transitions. Word has length 86 [2022-07-12 07:24:56,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:56,974 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 230 transitions. [2022-07-12 07:24:56,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:56,974 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 230 transitions. [2022-07-12 07:24:56,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-12 07:24:56,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:56,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:56,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-12 07:24:56,975 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:56,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:56,975 INFO L85 PathProgramCache]: Analyzing trace with hash -479136402, now seen corresponding path program 1 times [2022-07-12 07:24:56,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:56,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891406719] [2022-07-12 07:24:56,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:56,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:57,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:57,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:57,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891406719] [2022-07-12 07:24:57,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891406719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:57,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:57,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:24:57,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604123104] [2022-07-12 07:24:57,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:57,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:24:57,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:57,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:24:57,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:24:57,226 INFO L87 Difference]: Start difference. First operand 191 states and 230 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:58,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:24:58,145 INFO L93 Difference]: Finished difference Result 428 states and 568 transitions. [2022-07-12 07:24:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:24:58,146 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-07-12 07:24:58,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:24:58,147 INFO L225 Difference]: With dead ends: 428 [2022-07-12 07:24:58,147 INFO L226 Difference]: Without dead ends: 416 [2022-07-12 07:24:58,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:24:58,147 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 959 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:24:58,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 2831 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:24:58,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-07-12 07:24:58,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 179. [2022-07-12 07:24:58,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 177 states have (on average 1.231638418079096) internal successors, (218), 178 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:58,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 218 transitions. [2022-07-12 07:24:58,249 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 218 transitions. Word has length 86 [2022-07-12 07:24:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:24:58,249 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 218 transitions. [2022-07-12 07:24:58,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:24:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 218 transitions. [2022-07-12 07:24:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-12 07:24:58,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:24:58,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:24:58,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-12 07:24:58,250 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:24:58,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:24:58,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1229983071, now seen corresponding path program 1 times [2022-07-12 07:24:58,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:24:58,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216124022] [2022-07-12 07:24:58,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:24:58,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:24:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:24:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:24:59,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:24:59,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216124022] [2022-07-12 07:24:59,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216124022] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:24:59,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:24:59,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-07-12 07:24:59,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243502992] [2022-07-12 07:24:59,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:24:59,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-12 07:24:59,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:24:59,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-12 07:24:59,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:24:59,301 INFO L87 Difference]: Start difference. First operand 179 states and 218 transitions. Second operand has 27 states, 27 states have (on average 3.185185185185185) internal successors, (86), 27 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:03,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:03,304 INFO L93 Difference]: Finished difference Result 582 states and 756 transitions. [2022-07-12 07:25:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-12 07:25:03,304 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.185185185185185) internal successors, (86), 27 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-07-12 07:25:03,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:03,305 INFO L225 Difference]: With dead ends: 582 [2022-07-12 07:25:03,305 INFO L226 Difference]: Without dead ends: 574 [2022-07-12 07:25:03,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=441, Invalid=2315, Unknown=0, NotChecked=0, Total=2756 [2022-07-12 07:25:03,306 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 1792 mSDsluCounter, 6360 mSDsCounter, 0 mSdLazyCounter, 3647 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 6838 SdHoareTripleChecker+Invalid, 3721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:25:03,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 6838 Invalid, 3721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3647 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 07:25:03,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-07-12 07:25:03,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 199. [2022-07-12 07:25:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 197 states have (on average 1.2233502538071066) internal successors, (241), 198 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:03,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 241 transitions. [2022-07-12 07:25:03,460 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 241 transitions. Word has length 86 [2022-07-12 07:25:03,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:03,460 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 241 transitions. [2022-07-12 07:25:03,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.185185185185185) internal successors, (86), 27 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:03,461 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 241 transitions. [2022-07-12 07:25:03,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-12 07:25:03,461 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:03,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:03,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-12 07:25:03,462 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:03,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:03,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1748334515, now seen corresponding path program 1 times [2022-07-12 07:25:03,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:03,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426489897] [2022-07-12 07:25:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:03,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:04,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:04,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:04,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426489897] [2022-07-12 07:25:04,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426489897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:04,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:04,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-07-12 07:25:04,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110634907] [2022-07-12 07:25:04,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:04,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-12 07:25:04,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:04,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-12 07:25:04,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-07-12 07:25:04,368 INFO L87 Difference]: Start difference. First operand 199 states and 241 transitions. Second operand has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:07,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:07,764 INFO L93 Difference]: Finished difference Result 576 states and 750 transitions. [2022-07-12 07:25:07,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-12 07:25:07,764 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-12 07:25:07,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:07,765 INFO L225 Difference]: With dead ends: 576 [2022-07-12 07:25:07,765 INFO L226 Difference]: Without dead ends: 568 [2022-07-12 07:25:07,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=481, Invalid=1775, Unknown=0, NotChecked=0, Total=2256 [2022-07-12 07:25:07,766 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 2024 mSDsluCounter, 6300 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2024 SdHoareTripleChecker+Valid, 6805 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:25:07,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2024 Valid, 6805 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 07:25:07,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-07-12 07:25:07,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 184. [2022-07-12 07:25:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 182 states have (on average 1.2252747252747254) internal successors, (223), 183 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 223 transitions. [2022-07-12 07:25:07,895 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 223 transitions. Word has length 87 [2022-07-12 07:25:07,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:07,896 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 223 transitions. [2022-07-12 07:25:07,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:07,896 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 223 transitions. [2022-07-12 07:25:07,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-12 07:25:07,897 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:07,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:07,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-12 07:25:07,897 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:07,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:07,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1516849940, now seen corresponding path program 1 times [2022-07-12 07:25:07,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:07,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600968985] [2022-07-12 07:25:07,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:07,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:08,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:08,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:08,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600968985] [2022-07-12 07:25:08,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600968985] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:08,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:08,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:25:08,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792145277] [2022-07-12 07:25:08,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:08,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:25:08,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:08,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:25:08,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:25:08,136 INFO L87 Difference]: Start difference. First operand 184 states and 223 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:09,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:09,043 INFO L93 Difference]: Finished difference Result 457 states and 603 transitions. [2022-07-12 07:25:09,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:25:09,044 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-12 07:25:09,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:09,045 INFO L225 Difference]: With dead ends: 457 [2022-07-12 07:25:09,045 INFO L226 Difference]: Without dead ends: 428 [2022-07-12 07:25:09,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:25:09,045 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 1135 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:25:09,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 2214 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:25:09,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-07-12 07:25:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 155. [2022-07-12 07:25:09,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.2467532467532467) internal successors, (192), 154 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 192 transitions. [2022-07-12 07:25:09,151 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 192 transitions. Word has length 87 [2022-07-12 07:25:09,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:09,152 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 192 transitions. [2022-07-12 07:25:09,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:09,152 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 192 transitions. [2022-07-12 07:25:09,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-12 07:25:09,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:09,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:09,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-12 07:25:09,153 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:09,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash 529887998, now seen corresponding path program 1 times [2022-07-12 07:25:09,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:09,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330494440] [2022-07-12 07:25:09,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:09,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:09,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:09,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330494440] [2022-07-12 07:25:09,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330494440] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:09,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:09,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:25:09,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228519670] [2022-07-12 07:25:09,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:09,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:25:09,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:09,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:25:09,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:25:09,215 INFO L87 Difference]: Start difference. First operand 155 states and 192 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:10,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:10,215 INFO L93 Difference]: Finished difference Result 795 states and 1142 transitions. [2022-07-12 07:25:10,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:25:10,216 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-12 07:25:10,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:10,217 INFO L225 Difference]: With dead ends: 795 [2022-07-12 07:25:10,217 INFO L226 Difference]: Without dead ends: 731 [2022-07-12 07:25:10,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-12 07:25:10,218 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1483 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:25:10,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1527 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:25:10,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-07-12 07:25:10,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 217. [2022-07-12 07:25:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.3148148148148149) internal successors, (284), 216 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:10,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 284 transitions. [2022-07-12 07:25:10,421 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 284 transitions. Word has length 112 [2022-07-12 07:25:10,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:10,421 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 284 transitions. [2022-07-12 07:25:10,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:10,422 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 284 transitions. [2022-07-12 07:25:10,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 07:25:10,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:10,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:10,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-12 07:25:10,422 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:10,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:10,423 INFO L85 PathProgramCache]: Analyzing trace with hash 257111127, now seen corresponding path program 1 times [2022-07-12 07:25:10,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:10,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143665641] [2022-07-12 07:25:10,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:10,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:10,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:10,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143665641] [2022-07-12 07:25:10,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143665641] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:10,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:10,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:25:10,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554727739] [2022-07-12 07:25:10,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:10,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:25:10,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:10,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:25:10,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:25:10,485 INFO L87 Difference]: Start difference. First operand 217 states and 284 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2022-07-12 07:25:11,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:11,498 INFO L93 Difference]: Finished difference Result 911 states and 1312 transitions. [2022-07-12 07:25:11,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 07:25:11,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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 [2022-07-12 07:25:11,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:11,500 INFO L225 Difference]: With dead ends: 911 [2022-07-12 07:25:11,500 INFO L226 Difference]: Without dead ends: 785 [2022-07-12 07:25:11,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:25:11,501 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1186 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:25:11,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1186 Valid, 954 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:25:11,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-07-12 07:25:11,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 341. [2022-07-12 07:25:11,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.3794117647058823) internal successors, (469), 340 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:11,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 469 transitions. [2022-07-12 07:25:11,850 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 469 transitions. Word has length 114 [2022-07-12 07:25:11,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:11,850 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 469 transitions. [2022-07-12 07:25:11,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2022-07-12 07:25:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 469 transitions. [2022-07-12 07:25:11,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 07:25:11,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:11,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:11,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-12 07:25:11,851 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:11,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:11,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1982497248, now seen corresponding path program 1 times [2022-07-12 07:25:11,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:11,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479344950] [2022-07-12 07:25:11,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:11,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:11,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:11,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:11,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479344950] [2022-07-12 07:25:11,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479344950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:11,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:11,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:25:11,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419885529] [2022-07-12 07:25:11,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:11,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:25:11,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:11,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:25:11,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:25:11,967 INFO L87 Difference]: Start difference. First operand 341 states and 469 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2022-07-12 07:25:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:12,419 INFO L93 Difference]: Finished difference Result 593 states and 842 transitions. [2022-07-12 07:25:12,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 07:25:12,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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 [2022-07-12 07:25:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:12,421 INFO L225 Difference]: With dead ends: 593 [2022-07-12 07:25:12,421 INFO L226 Difference]: Without dead ends: 343 [2022-07-12 07:25:12,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-07-12 07:25:12,422 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 605 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:25:12,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 552 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:25:12,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-07-12 07:25:12,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2022-07-12 07:25:12,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.3735294117647059) internal successors, (467), 340 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:12,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 467 transitions. [2022-07-12 07:25:12,782 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 467 transitions. Word has length 114 [2022-07-12 07:25:12,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:12,782 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 467 transitions. [2022-07-12 07:25:12,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2022-07-12 07:25:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 467 transitions. [2022-07-12 07:25:12,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 07:25:12,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:12,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:12,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-12 07:25:12,783 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:12,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:12,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1242756927, now seen corresponding path program 1 times [2022-07-12 07:25:12,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:12,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568337665] [2022-07-12 07:25:12,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:12,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:12,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:12,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:12,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568337665] [2022-07-12 07:25:12,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568337665] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:12,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:12,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:25:12,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675771318] [2022-07-12 07:25:12,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:12,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:25:12,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:12,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:25:12,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:25:12,824 INFO L87 Difference]: Start difference. First operand 341 states and 467 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 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) [2022-07-12 07:25:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:13,550 INFO L93 Difference]: Finished difference Result 815 states and 1163 transitions. [2022-07-12 07:25:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:25:13,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 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 [2022-07-12 07:25:13,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:13,551 INFO L225 Difference]: With dead ends: 815 [2022-07-12 07:25:13,551 INFO L226 Difference]: Without dead ends: 565 [2022-07-12 07:25:13,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:25:13,552 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 111 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 306 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 [2022-07-12 07:25:13,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:25:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-07-12 07:25:14,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2022-07-12 07:25:14,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.3942652329749103) internal successors, (778), 558 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:14,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 778 transitions. [2022-07-12 07:25:14,246 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 778 transitions. Word has length 114 [2022-07-12 07:25:14,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:14,246 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 778 transitions. [2022-07-12 07:25:14,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 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) [2022-07-12 07:25:14,247 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 778 transitions. [2022-07-12 07:25:14,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 07:25:14,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:14,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:14,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-12 07:25:14,247 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:14,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:14,248 INFO L85 PathProgramCache]: Analyzing trace with hash 335311913, now seen corresponding path program 1 times [2022-07-12 07:25:14,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:14,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038027441] [2022-07-12 07:25:14,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:14,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:14,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:14,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038027441] [2022-07-12 07:25:14,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038027441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:14,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:14,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:25:14,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395411526] [2022-07-12 07:25:14,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:14,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:25:14,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:14,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:25:14,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:25:14,309 INFO L87 Difference]: Start difference. First operand 559 states and 778 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2022-07-12 07:25:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:16,511 INFO L93 Difference]: Finished difference Result 1853 states and 2658 transitions. [2022-07-12 07:25:16,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 07:25:16,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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 [2022-07-12 07:25:16,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:16,514 INFO L225 Difference]: With dead ends: 1853 [2022-07-12 07:25:16,514 INFO L226 Difference]: Without dead ends: 1618 [2022-07-12 07:25:16,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:25:16,515 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 1110 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:25:16,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 996 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:25:16,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2022-07-12 07:25:17,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 909. [2022-07-12 07:25:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 908 states have (on average 1.4162995594713657) internal successors, (1286), 908 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1286 transitions. [2022-07-12 07:25:17,686 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1286 transitions. Word has length 114 [2022-07-12 07:25:17,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:17,687 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1286 transitions. [2022-07-12 07:25:17,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2022-07-12 07:25:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1286 transitions. [2022-07-12 07:25:17,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 07:25:17,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:17,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:17,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-12 07:25:17,688 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:17,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:17,688 INFO L85 PathProgramCache]: Analyzing trace with hash -784107677, now seen corresponding path program 1 times [2022-07-12 07:25:17,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:17,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653237475] [2022-07-12 07:25:17,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:17,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:17,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:17,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653237475] [2022-07-12 07:25:17,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653237475] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:17,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:17,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:25:17,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57305173] [2022-07-12 07:25:17,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:17,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:25:17,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:17,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:25:17,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:25:17,755 INFO L87 Difference]: Start difference. First operand 909 states and 1286 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2022-07-12 07:25:20,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:20,270 INFO L93 Difference]: Finished difference Result 2086 states and 2997 transitions. [2022-07-12 07:25:20,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 07:25:20,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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 [2022-07-12 07:25:20,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:20,273 INFO L225 Difference]: With dead ends: 2086 [2022-07-12 07:25:20,273 INFO L226 Difference]: Without dead ends: 1851 [2022-07-12 07:25:20,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:25:20,275 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 1003 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:25:20,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1082 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:25:20,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2022-07-12 07:25:21,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1142. [2022-07-12 07:25:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 1.4241893076248904) internal successors, (1625), 1141 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:21,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1625 transitions. [2022-07-12 07:25:21,839 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1625 transitions. Word has length 114 [2022-07-12 07:25:21,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:21,839 INFO L495 AbstractCegarLoop]: Abstraction has 1142 states and 1625 transitions. [2022-07-12 07:25:21,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2022-07-12 07:25:21,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1625 transitions. [2022-07-12 07:25:21,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 07:25:21,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:21,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:21,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-12 07:25:21,840 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:21,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:21,841 INFO L85 PathProgramCache]: Analyzing trace with hash -651533795, now seen corresponding path program 1 times [2022-07-12 07:25:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:21,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452775412] [2022-07-12 07:25:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:21,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:21,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:21,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452775412] [2022-07-12 07:25:21,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452775412] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:21,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:21,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:25:21,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953127279] [2022-07-12 07:25:21,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:21,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:25:21,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:21,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:25:21,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:25:21,905 INFO L87 Difference]: Start difference. First operand 1142 states and 1625 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2022-07-12 07:25:24,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:24,765 INFO L93 Difference]: Finished difference Result 2319 states and 3336 transitions. [2022-07-12 07:25:24,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 07:25:24,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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 [2022-07-12 07:25:24,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:24,769 INFO L225 Difference]: With dead ends: 2319 [2022-07-12 07:25:24,769 INFO L226 Difference]: Without dead ends: 2084 [2022-07-12 07:25:24,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:25:24,770 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1038 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:25:24,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 1122 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:25:24,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2022-07-12 07:25:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 1375. [2022-07-12 07:25:26,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1374 states have (on average 1.4294032023289664) internal successors, (1964), 1374 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:26,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 1964 transitions. [2022-07-12 07:25:26,540 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 1964 transitions. Word has length 114 [2022-07-12 07:25:26,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:26,541 INFO L495 AbstractCegarLoop]: Abstraction has 1375 states and 1964 transitions. [2022-07-12 07:25:26,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2022-07-12 07:25:26,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 1964 transitions. [2022-07-12 07:25:26,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-12 07:25:26,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:26,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:26,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-12 07:25:26,542 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:26,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:26,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1268705059, now seen corresponding path program 1 times [2022-07-12 07:25:26,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:26,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946275223] [2022-07-12 07:25:26,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:26,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:26,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:26,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946275223] [2022-07-12 07:25:26,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946275223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:26,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:26,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:25:26,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739527530] [2022-07-12 07:25:26,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:26,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:25:26,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:26,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:25:26,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:25:26,592 INFO L87 Difference]: Start difference. First operand 1375 states and 1964 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 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) [2022-07-12 07:25:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:30,308 INFO L93 Difference]: Finished difference Result 3855 states and 5544 transitions. [2022-07-12 07:25:30,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:25:30,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 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 [2022-07-12 07:25:30,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:30,314 INFO L225 Difference]: With dead ends: 3855 [2022-07-12 07:25:30,314 INFO L226 Difference]: Without dead ends: 2571 [2022-07-12 07:25:30,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:25:30,316 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 89 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 407 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 [2022-07-12 07:25:30,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:25:30,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2022-07-12 07:25:33,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2481. [2022-07-12 07:25:33,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2481 states, 2480 states have (on average 1.429032258064516) internal successors, (3544), 2480 states have internal predecessors, (3544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:33,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 3544 transitions. [2022-07-12 07:25:33,681 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 3544 transitions. Word has length 115 [2022-07-12 07:25:33,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:33,681 INFO L495 AbstractCegarLoop]: Abstraction has 2481 states and 3544 transitions. [2022-07-12 07:25:33,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 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) [2022-07-12 07:25:33,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 3544 transitions. [2022-07-12 07:25:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 07:25:33,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:33,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:33,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-12 07:25:33,683 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:33,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:33,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1444283991, now seen corresponding path program 1 times [2022-07-12 07:25:33,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:33,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426973878] [2022-07-12 07:25:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:33,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:33,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:33,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:33,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426973878] [2022-07-12 07:25:33,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426973878] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:33,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:33,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:25:33,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697480216] [2022-07-12 07:25:33,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:33,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:25:33,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:33,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:25:33,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:25:33,732 INFO L87 Difference]: Start difference. First operand 2481 states and 3544 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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) [2022-07-12 07:25:40,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:40,282 INFO L93 Difference]: Finished difference Result 7085 states and 10130 transitions. [2022-07-12 07:25:40,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:25:40,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 [2022-07-12 07:25:40,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:40,291 INFO L225 Difference]: With dead ends: 7085 [2022-07-12 07:25:40,291 INFO L226 Difference]: Without dead ends: 4695 [2022-07-12 07:25:40,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:25:40,296 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 82 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 407 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 [2022-07-12 07:25:40,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:25:40,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2022-07-12 07:25:46,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 4517. [2022-07-12 07:25:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4516 states have (on average 1.421169176262179) internal successors, (6418), 4516 states have internal predecessors, (6418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:25:46,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 6418 transitions. [2022-07-12 07:25:46,627 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 6418 transitions. Word has length 116 [2022-07-12 07:25:46,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:25:46,627 INFO L495 AbstractCegarLoop]: Abstraction has 4517 states and 6418 transitions. [2022-07-12 07:25:46,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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) [2022-07-12 07:25:46,628 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 6418 transitions. [2022-07-12 07:25:46,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-12 07:25:46,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:25:46,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:25:46,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-12 07:25:46,629 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:25:46,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:25:46,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1913447474, now seen corresponding path program 1 times [2022-07-12 07:25:46,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:25:46,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293165319] [2022-07-12 07:25:46,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:25:46,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:25:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:25:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:25:46,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:25:46,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293165319] [2022-07-12 07:25:46,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293165319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:25:46,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:25:46,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:25:46,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617342071] [2022-07-12 07:25:46,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:25:46,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:25:46,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:25:46,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:25:46,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:25:46,667 INFO L87 Difference]: Start difference. First operand 4517 states and 6418 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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) [2022-07-12 07:25:58,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:25:58,820 INFO L93 Difference]: Finished difference Result 13017 states and 18444 transitions. [2022-07-12 07:25:58,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:25:58,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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 [2022-07-12 07:25:58,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:25:58,832 INFO L225 Difference]: With dead ends: 13017 [2022-07-12 07:25:58,832 INFO L226 Difference]: Without dead ends: 8591 [2022-07-12 07:25:58,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:25:58,838 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 75 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 407 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 [2022-07-12 07:25:58,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:25:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8591 states. [2022-07-12 07:26:10,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8591 to 8237. [2022-07-12 07:26:10,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8237 states, 8236 states have (on average 1.407722195240408) internal successors, (11594), 8236 states have internal predecessors, (11594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8237 states to 8237 states and 11594 transitions. [2022-07-12 07:26:10,603 INFO L78 Accepts]: Start accepts. Automaton has 8237 states and 11594 transitions. Word has length 117 [2022-07-12 07:26:10,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:10,604 INFO L495 AbstractCegarLoop]: Abstraction has 8237 states and 11594 transitions. [2022-07-12 07:26:10,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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) [2022-07-12 07:26:10,604 INFO L276 IsEmpty]: Start isEmpty. Operand 8237 states and 11594 transitions. [2022-07-12 07:26:10,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-12 07:26:10,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:10,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:26:10,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-12 07:26:10,605 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:26:10,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:10,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1786344024, now seen corresponding path program 1 times [2022-07-12 07:26:10,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:10,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585959529] [2022-07-12 07:26:10,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:10,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:10,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:10,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585959529] [2022-07-12 07:26:10,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585959529] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:10,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:10,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:26:10,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033103910] [2022-07-12 07:26:10,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:10,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:26:10,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:10,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:26:10,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:26:10,643 INFO L87 Difference]: Start difference. First operand 8237 states and 11594 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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) [2022-07-12 07:26:33,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:26:33,127 INFO L93 Difference]: Finished difference Result 23825 states and 33356 transitions. [2022-07-12 07:26:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:26:33,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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 [2022-07-12 07:26:33,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:26:33,144 INFO L225 Difference]: With dead ends: 23825 [2022-07-12 07:26:33,145 INFO L226 Difference]: Without dead ends: 15679 [2022-07-12 07:26:33,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:26:33,155 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 65 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:26:33,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 407 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:26:33,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15679 states. [2022-07-12 07:26:54,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15679 to 14973. [2022-07-12 07:26:54,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14973 states, 14972 states have (on average 1.389393534597916) internal successors, (20802), 14972 states have internal predecessors, (20802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:54,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14973 states to 14973 states and 20802 transitions. [2022-07-12 07:26:54,794 INFO L78 Accepts]: Start accepts. Automaton has 14973 states and 20802 transitions. Word has length 118 [2022-07-12 07:26:54,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:54,795 INFO L495 AbstractCegarLoop]: Abstraction has 14973 states and 20802 transitions. [2022-07-12 07:26:54,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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) [2022-07-12 07:26:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 14973 states and 20802 transitions. [2022-07-12 07:26:54,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 07:26:54,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:54,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:26:54,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-07-12 07:26:54,796 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-12 07:26:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:54,796 INFO L85 PathProgramCache]: Analyzing trace with hash 880608737, now seen corresponding path program 1 times [2022-07-12 07:26:54,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:54,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258009378] [2022-07-12 07:26:54,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:54,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:54,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:54,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:54,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258009378] [2022-07-12 07:26:54,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258009378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:54,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:54,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:26:54,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043136549] [2022-07-12 07:26:54,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:54,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:26:54,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:54,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:26:54,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:26:54,857 INFO L87 Difference]: Start difference. First operand 14973 states and 20802 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 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) [2022-07-12 07:27:34,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:34,896 INFO L93 Difference]: Finished difference Result 26383 states and 36427 transitions. [2022-07-12 07:27:34,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 07:27:34,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 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 [2022-07-12 07:27:34,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:34,932 INFO L225 Difference]: With dead ends: 26383 [2022-07-12 07:27:34,933 INFO L226 Difference]: Without dead ends: 26381 [2022-07-12 07:27:34,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:34,940 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 309 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:34,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1012 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:27:34,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26381 states.