./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 12:14:29,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 12:14:29,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 12:14:29,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 12:14:29,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 12:14:29,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 12:14:29,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 12:14:29,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 12:14:29,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 12:14:29,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 12:14:29,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 12:14:29,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 12:14:29,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 12:14:29,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 12:14:29,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 12:14:29,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 12:14:29,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 12:14:29,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 12:14:29,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 12:14:29,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 12:14:29,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 12:14:29,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 12:14:29,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 12:14:29,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 12:14:29,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 12:14:29,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 12:14:29,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 12:14:29,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 12:14:29,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 12:14:29,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 12:14:29,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 12:14:29,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 12:14:29,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 12:14:29,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 12:14:29,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 12:14:29,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 12:14:29,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 12:14:29,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 12:14:29,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 12:14:29,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 12:14:29,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 12:14:29,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 12:14:29,397 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 12:14:29,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 12:14:29,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 12:14:29,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 12:14:29,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 12:14:29,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 12:14:29,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 12:14:29,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 12:14:29,400 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 12:14:29,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 12:14:29,400 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 12:14:29,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 12:14:29,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 12:14:29,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 12:14:29,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 12:14:29,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 12:14:29,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 12:14:29,402 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 12:14:29,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 12:14:29,402 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 12:14:29,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 12:14:29,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 12:14:29,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 12:14:29,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 12:14:29,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 12:14:29,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 12:14:29,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 12:14:29,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 12:14:29,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 12:14:29,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 12:14:29,405 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 12:14:29,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 12:14:29,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 12:14:29,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 12:14:29,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 [2021-12-22 12:14:29,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 12:14:29,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 12:14:29,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 12:14:29,628 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 12:14:29,629 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 12:14:29,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-22 12:14:29,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586e86d59/c3b144db1a9c4d82ae364ab42706fcaa/FLAG2c547bdcb [2021-12-22 12:14:30,302 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 12:14:30,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-22 12:14:30,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586e86d59/c3b144db1a9c4d82ae364ab42706fcaa/FLAG2c547bdcb [2021-12-22 12:14:30,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586e86d59/c3b144db1a9c4d82ae364ab42706fcaa [2021-12-22 12:14:30,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 12:14:30,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 12:14:30,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 12:14:30,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 12:14:30,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 12:14:30,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:14:30" (1/1) ... [2021-12-22 12:14:30,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a860c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:30, skipping insertion in model container [2021-12-22 12:14:30,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:14:30" (1/1) ... [2021-12-22 12:14:30,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 12:14:30,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 12:14:31,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2021-12-22 12:14:31,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21942,21955] [2021-12-22 12:14:31,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23299,23312] [2021-12-22 12:14:31,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24107,24120] [2021-12-22 12:14:31,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2021-12-22 12:14:31,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26600,26613] [2021-12-22 12:14:31,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27736,27749] [2021-12-22 12:14:31,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30390,30403] [2021-12-22 12:14:31,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31201,31214] [2021-12-22 12:14:31,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32340,32353] [2021-12-22 12:14:31,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34445,34458] [2021-12-22 12:14:31,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38533,38546] [2021-12-22 12:14:31,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39344,39357] [2021-12-22 12:14:31,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2021-12-22 12:14:31,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42588,42601] [2021-12-22 12:14:31,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[46127,46140] [2021-12-22 12:14:31,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2021-12-22 12:14:31,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[53384,53397] [2021-12-22 12:14:31,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54527,54540] [2021-12-22 12:14:31,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56636,56649] [2021-12-22 12:14:31,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2021-12-22 12:14:31,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2021-12-22 12:14:31,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79206,79219] [2021-12-22 12:14:31,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80017,80030] [2021-12-22 12:14:31,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[81156,81169] [2021-12-22 12:14:31,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2021-12-22 12:14:31,527 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2021-12-22 12:14:31,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92697,92710] [2021-12-22 12:14:31,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2021-12-22 12:14:32,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 12:14:32,079 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 12:14:32,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2021-12-22 12:14:32,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21942,21955] [2021-12-22 12:14:32,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23299,23312] [2021-12-22 12:14:32,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24107,24120] [2021-12-22 12:14:32,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2021-12-22 12:14:32,166 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26600,26613] [2021-12-22 12:14:32,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27736,27749] [2021-12-22 12:14:32,176 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30390,30403] [2021-12-22 12:14:32,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31201,31214] [2021-12-22 12:14:32,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32340,32353] [2021-12-22 12:14:32,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34445,34458] [2021-12-22 12:14:32,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38533,38546] [2021-12-22 12:14:32,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39344,39357] [2021-12-22 12:14:32,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2021-12-22 12:14:32,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42588,42601] [2021-12-22 12:14:32,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[46127,46140] [2021-12-22 12:14:32,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2021-12-22 12:14:32,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[53384,53397] [2021-12-22 12:14:32,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54527,54540] [2021-12-22 12:14:32,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56636,56649] [2021-12-22 12:14:32,257 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2021-12-22 12:14:32,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2021-12-22 12:14:32,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79206,79219] [2021-12-22 12:14:32,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80017,80030] [2021-12-22 12:14:32,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[81156,81169] [2021-12-22 12:14:32,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2021-12-22 12:14:32,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2021-12-22 12:14:32,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92697,92710] [2021-12-22 12:14:32,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2021-12-22 12:14:32,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 12:14:32,717 INFO L208 MainTranslator]: Completed translation [2021-12-22 12:14:32,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32 WrapperNode [2021-12-22 12:14:32,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 12:14:32,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 12:14:32,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 12:14:32,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 12:14:32,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (1/1) ... [2021-12-22 12:14:32,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (1/1) ... [2021-12-22 12:14:32,914 INFO L137 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12087 [2021-12-22 12:14:32,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 12:14:32,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 12:14:32,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 12:14:32,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 12:14:32,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (1/1) ... [2021-12-22 12:14:32,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (1/1) ... [2021-12-22 12:14:32,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (1/1) ... [2021-12-22 12:14:32,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (1/1) ... [2021-12-22 12:14:33,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (1/1) ... [2021-12-22 12:14:33,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (1/1) ... [2021-12-22 12:14:33,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (1/1) ... [2021-12-22 12:14:33,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 12:14:33,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 12:14:33,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 12:14:33,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 12:14:33,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (1/1) ... [2021-12-22 12:14:33,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 12:14:33,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 12:14:33,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 12:14:33,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 12:14:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 12:14:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 12:14:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 12:14:33,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 12:14:33,559 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 12:14:33,561 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 12:14:36,869 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 12:14:36,882 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 12:14:36,883 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 12:14:36,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:14:36 BoogieIcfgContainer [2021-12-22 12:14:36,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 12:14:36,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 12:14:36,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 12:14:36,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 12:14:36,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:14:30" (1/3) ... [2021-12-22 12:14:36,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f41697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:14:36, skipping insertion in model container [2021-12-22 12:14:36,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:32" (2/3) ... [2021-12-22 12:14:36,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f41697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:14:36, skipping insertion in model container [2021-12-22 12:14:36,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:14:36" (3/3) ... [2021-12-22 12:14:36,891 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-22 12:14:36,894 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 12:14:36,894 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-12-22 12:14:36,929 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 12:14:36,933 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 12:14:36,934 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-12-22 12:14:36,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 2064 states, 2034 states have (on average 1.867748279252704) internal successors, (3799), 2063 states have internal predecessors, (3799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:36,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-22 12:14:36,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:36,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:36,976 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:36,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:36,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1776091410, now seen corresponding path program 1 times [2021-12-22 12:14:36,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:36,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536279659] [2021-12-22 12:14:36,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:36,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:37,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:37,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536279659] [2021-12-22 12:14:37,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536279659] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:37,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:37,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:37,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174411373] [2021-12-22 12:14:37,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:37,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:37,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:37,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:37,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:37,320 INFO L87 Difference]: Start difference. First operand has 2064 states, 2034 states have (on average 1.867748279252704) internal successors, (3799), 2063 states have internal predecessors, (3799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:38,582 INFO L93 Difference]: Finished difference Result 3639 states and 6415 transitions. [2021-12-22 12:14:38,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:38,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-22 12:14:38,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:38,602 INFO L225 Difference]: With dead ends: 3639 [2021-12-22 12:14:38,602 INFO L226 Difference]: Without dead ends: 2131 [2021-12-22 12:14:38,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-22 12:14:38,609 INFO L933 BasicCegarLoop]: 1843 mSDtfsCounter, 10044 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10044 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:38,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10044 Valid, 2433 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 12:14:38,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2021-12-22 12:14:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 2029. [2021-12-22 12:14:38,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2000 states have (on average 1.3745) internal successors, (2749), 2028 states have internal predecessors, (2749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:38,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 2749 transitions. [2021-12-22 12:14:38,720 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 2749 transitions. Word has length 100 [2021-12-22 12:14:38,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:38,721 INFO L470 AbstractCegarLoop]: Abstraction has 2029 states and 2749 transitions. [2021-12-22 12:14:38,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:38,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 2749 transitions. [2021-12-22 12:14:38,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-22 12:14:38,726 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:38,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:38,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 12:14:38,727 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:38,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:38,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1108678289, now seen corresponding path program 1 times [2021-12-22 12:14:38,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:38,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335267837] [2021-12-22 12:14:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:38,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:38,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:38,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:38,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335267837] [2021-12-22 12:14:38,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335267837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:38,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:38,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:38,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535430666] [2021-12-22 12:14:38,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:38,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:38,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:38,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:38,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:38,909 INFO L87 Difference]: Start difference. First operand 2029 states and 2749 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:39,613 INFO L93 Difference]: Finished difference Result 3493 states and 4870 transitions. [2021-12-22 12:14:39,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:39,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-22 12:14:39,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:39,619 INFO L225 Difference]: With dead ends: 3493 [2021-12-22 12:14:39,619 INFO L226 Difference]: Without dead ends: 1797 [2021-12-22 12:14:39,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-22 12:14:39,622 INFO L933 BasicCegarLoop]: 958 mSDtfsCounter, 5135 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5135 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:39,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5135 Valid, 994 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 12:14:39,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2021-12-22 12:14:39,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1797. [2021-12-22 12:14:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1768 states have (on average 1.4044117647058822) internal successors, (2483), 1796 states have internal predecessors, (2483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2483 transitions. [2021-12-22 12:14:39,729 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2483 transitions. Word has length 101 [2021-12-22 12:14:39,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:39,730 INFO L470 AbstractCegarLoop]: Abstraction has 1797 states and 2483 transitions. [2021-12-22 12:14:39,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2483 transitions. [2021-12-22 12:14:39,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-22 12:14:39,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:39,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:39,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 12:14:39,733 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:39,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:39,733 INFO L85 PathProgramCache]: Analyzing trace with hash 487850506, now seen corresponding path program 1 times [2021-12-22 12:14:39,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:39,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632049903] [2021-12-22 12:14:39,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:39,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:39,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:39,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632049903] [2021-12-22 12:14:39,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632049903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:39,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:39,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:39,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423999014] [2021-12-22 12:14:39,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:39,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:39,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:39,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:39,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:39,809 INFO L87 Difference]: Start difference. First operand 1797 states and 2483 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:40,428 INFO L93 Difference]: Finished difference Result 3261 states and 4602 transitions. [2021-12-22 12:14:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:40,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-22 12:14:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:40,433 INFO L225 Difference]: With dead ends: 3261 [2021-12-22 12:14:40,433 INFO L226 Difference]: Without dead ends: 1669 [2021-12-22 12:14:40,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-22 12:14:40,435 INFO L933 BasicCegarLoop]: 886 mSDtfsCounter, 4734 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4734 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:40,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4734 Valid, 914 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 12:14:40,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2021-12-22 12:14:40,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1669. [2021-12-22 12:14:40,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1640 states have (on average 1.425) internal successors, (2337), 1668 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:40,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2337 transitions. [2021-12-22 12:14:40,490 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2337 transitions. Word has length 102 [2021-12-22 12:14:40,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:40,490 INFO L470 AbstractCegarLoop]: Abstraction has 1669 states and 2337 transitions. [2021-12-22 12:14:40,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:40,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2337 transitions. [2021-12-22 12:14:40,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-22 12:14:40,493 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:40,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:40,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 12:14:40,494 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:40,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:40,494 INFO L85 PathProgramCache]: Analyzing trace with hash -151518128, now seen corresponding path program 1 times [2021-12-22 12:14:40,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:40,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852008168] [2021-12-22 12:14:40,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:40,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:40,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:40,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:40,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852008168] [2021-12-22 12:14:40,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852008168] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:40,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:40,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:40,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090671193] [2021-12-22 12:14:40,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:40,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:40,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:40,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:40,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:40,585 INFO L87 Difference]: Start difference. First operand 1669 states and 2337 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:41,619 INFO L93 Difference]: Finished difference Result 3133 states and 4454 transitions. [2021-12-22 12:14:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:41,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-12-22 12:14:41,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:41,625 INFO L225 Difference]: With dead ends: 3133 [2021-12-22 12:14:41,625 INFO L226 Difference]: Without dead ends: 1629 [2021-12-22 12:14:41,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-22 12:14:41,627 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 4390 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4390 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:41,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4390 Valid, 702 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-22 12:14:41,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2021-12-22 12:14:41,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1629. [2021-12-22 12:14:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1600 states have (on average 1.429375) internal successors, (2287), 1628 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:41,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2287 transitions. [2021-12-22 12:14:41,677 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2287 transitions. Word has length 103 [2021-12-22 12:14:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:41,678 INFO L470 AbstractCegarLoop]: Abstraction has 1629 states and 2287 transitions. [2021-12-22 12:14:41,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2287 transitions. [2021-12-22 12:14:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-22 12:14:41,680 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:41,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:41,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 12:14:41,681 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:41,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:41,682 INFO L85 PathProgramCache]: Analyzing trace with hash 683064411, now seen corresponding path program 1 times [2021-12-22 12:14:41,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:41,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425755169] [2021-12-22 12:14:41,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:41,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:41,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:41,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:41,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425755169] [2021-12-22 12:14:41,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425755169] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:41,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:41,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:41,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279179657] [2021-12-22 12:14:41,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:41,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:41,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:41,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:41,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:41,757 INFO L87 Difference]: Start difference. First operand 1629 states and 2287 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:42,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:42,415 INFO L93 Difference]: Finished difference Result 3093 states and 4402 transitions. [2021-12-22 12:14:42,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:42,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-22 12:14:42,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:42,421 INFO L225 Difference]: With dead ends: 3093 [2021-12-22 12:14:42,422 INFO L226 Difference]: Without dead ends: 1576 [2021-12-22 12:14:42,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-22 12:14:42,425 INFO L933 BasicCegarLoop]: 833 mSDtfsCounter, 4451 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4451 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:42,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4451 Valid, 845 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 12:14:42,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-12-22 12:14:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-12-22 12:14:42,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4402068519715578) internal successors, (2228), 1575 states have internal predecessors, (2228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:42,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2228 transitions. [2021-12-22 12:14:42,486 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2228 transitions. Word has length 104 [2021-12-22 12:14:42,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:42,487 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2228 transitions. [2021-12-22 12:14:42,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:42,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2228 transitions. [2021-12-22 12:14:42,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-22 12:14:42,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:42,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:42,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 12:14:42,490 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:42,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:42,491 INFO L85 PathProgramCache]: Analyzing trace with hash 739412290, now seen corresponding path program 1 times [2021-12-22 12:14:42,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:42,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229885605] [2021-12-22 12:14:42,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:42,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:42,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:42,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229885605] [2021-12-22 12:14:42,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229885605] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:42,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:42,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:42,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534412504] [2021-12-22 12:14:42,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:42,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:42,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:42,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:42,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:42,580 INFO L87 Difference]: Start difference. First operand 1576 states and 2228 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:43,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:43,196 INFO L93 Difference]: Finished difference Result 3040 states and 4341 transitions. [2021-12-22 12:14:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:43,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-12-22 12:14:43,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:43,202 INFO L225 Difference]: With dead ends: 3040 [2021-12-22 12:14:43,202 INFO L226 Difference]: Without dead ends: 1551 [2021-12-22 12:14:43,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-22 12:14:43,204 INFO L933 BasicCegarLoop]: 812 mSDtfsCounter, 4350 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4350 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:43,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4350 Valid, 832 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 12:14:43,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2021-12-22 12:14:43,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1551. [2021-12-22 12:14:43,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.444809461235217) internal successors, (2199), 1550 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:43,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2199 transitions. [2021-12-22 12:14:43,266 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2199 transitions. Word has length 105 [2021-12-22 12:14:43,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:43,267 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2199 transitions. [2021-12-22 12:14:43,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2199 transitions. [2021-12-22 12:14:43,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 12:14:43,269 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:43,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:43,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 12:14:43,270 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:43,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:43,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1545322768, now seen corresponding path program 1 times [2021-12-22 12:14:43,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:43,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815580384] [2021-12-22 12:14:43,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:43,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:43,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:43,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815580384] [2021-12-22 12:14:43,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815580384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:43,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:43,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:43,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054253233] [2021-12-22 12:14:43,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:43,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:43,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:43,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:43,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:43,330 INFO L87 Difference]: Start difference. First operand 1551 states and 2199 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:44,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:44,009 INFO L93 Difference]: Finished difference Result 3015 states and 4310 transitions. [2021-12-22 12:14:44,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:44,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-22 12:14:44,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:44,017 INFO L225 Difference]: With dead ends: 3015 [2021-12-22 12:14:44,017 INFO L226 Difference]: Without dead ends: 1543 [2021-12-22 12:14:44,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-22 12:14:44,020 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 4203 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4203 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:44,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4203 Valid, 765 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 12:14:44,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2021-12-22 12:14:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1543. [2021-12-22 12:14:44,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4451783355350065) internal successors, (2188), 1542 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:44,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2188 transitions. [2021-12-22 12:14:44,130 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2188 transitions. Word has length 106 [2021-12-22 12:14:44,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:44,131 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2188 transitions. [2021-12-22 12:14:44,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:44,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2188 transitions. [2021-12-22 12:14:44,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 12:14:44,134 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:44,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:44,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 12:14:44,134 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:44,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:44,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1619061170, now seen corresponding path program 1 times [2021-12-22 12:14:44,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:44,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942994503] [2021-12-22 12:14:44,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:44,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:44,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:44,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942994503] [2021-12-22 12:14:44,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942994503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:44,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:44,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-22 12:14:44,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251926287] [2021-12-22 12:14:44,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:44,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 12:14:44,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:44,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 12:14:44,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-22 12:14:44,321 INFO L87 Difference]: Start difference. First operand 1543 states and 2188 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:46,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:46,478 INFO L93 Difference]: Finished difference Result 2929 states and 4150 transitions. [2021-12-22 12:14:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-22 12:14:46,479 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-22 12:14:46,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:46,490 INFO L225 Difference]: With dead ends: 2929 [2021-12-22 12:14:46,491 INFO L226 Difference]: Without dead ends: 2751 [2021-12-22 12:14:46,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-22 12:14:46,493 INFO L933 BasicCegarLoop]: 846 mSDtfsCounter, 8088 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 4126 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8088 SdHoareTripleChecker+Valid, 4496 SdHoareTripleChecker+Invalid, 4335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 4126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:46,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8088 Valid, 4496 Invalid, 4335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 4126 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-22 12:14:46,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2021-12-22 12:14:46,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 1562. [2021-12-22 12:14:46,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1533 states have (on average 1.4455316373124592) internal successors, (2216), 1561 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:46,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2216 transitions. [2021-12-22 12:14:46,630 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2216 transitions. Word has length 107 [2021-12-22 12:14:46,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:46,630 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2216 transitions. [2021-12-22 12:14:46,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:46,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2216 transitions. [2021-12-22 12:14:46,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 12:14:46,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:46,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:46,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 12:14:46,635 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:46,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:46,635 INFO L85 PathProgramCache]: Analyzing trace with hash 321171132, now seen corresponding path program 1 times [2021-12-22 12:14:46,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:46,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967323427] [2021-12-22 12:14:46,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:46,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:46,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:46,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967323427] [2021-12-22 12:14:46,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967323427] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:46,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:46,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-22 12:14:46,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896271724] [2021-12-22 12:14:46,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:46,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 12:14:46,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:46,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 12:14:46,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-22 12:14:46,823 INFO L87 Difference]: Start difference. First operand 1562 states and 2216 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:48,757 INFO L93 Difference]: Finished difference Result 3126 states and 4444 transitions. [2021-12-22 12:14:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-22 12:14:48,757 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-22 12:14:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:48,771 INFO L225 Difference]: With dead ends: 3126 [2021-12-22 12:14:48,771 INFO L226 Difference]: Without dead ends: 2896 [2021-12-22 12:14:48,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-22 12:14:48,773 INFO L933 BasicCegarLoop]: 870 mSDtfsCounter, 8661 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 3930 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8661 SdHoareTripleChecker+Valid, 4607 SdHoareTripleChecker+Invalid, 4006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:48,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8661 Valid, 4607 Invalid, 4006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3930 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 12:14:48,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-12-22 12:14:48,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 1562. [2021-12-22 12:14:48,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1533 states have (on average 1.4448793215916504) internal successors, (2215), 1561 states have internal predecessors, (2215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:48,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2215 transitions. [2021-12-22 12:14:48,918 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2215 transitions. Word has length 107 [2021-12-22 12:14:48,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:48,919 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2215 transitions. [2021-12-22 12:14:48,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:48,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2215 transitions. [2021-12-22 12:14:48,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 12:14:48,922 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:48,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:48,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 12:14:48,922 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:48,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:48,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1269156506, now seen corresponding path program 1 times [2021-12-22 12:14:48,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:48,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189895750] [2021-12-22 12:14:48,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:48,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:49,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:49,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189895750] [2021-12-22 12:14:49,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189895750] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:49,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:49,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-22 12:14:49,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942036172] [2021-12-22 12:14:49,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:49,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 12:14:49,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:49,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 12:14:49,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-22 12:14:49,109 INFO L87 Difference]: Start difference. First operand 1562 states and 2215 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:51,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:51,336 INFO L93 Difference]: Finished difference Result 3033 states and 4332 transitions. [2021-12-22 12:14:51,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-22 12:14:51,337 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-22 12:14:51,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:51,343 INFO L225 Difference]: With dead ends: 3033 [2021-12-22 12:14:51,344 INFO L226 Difference]: Without dead ends: 2818 [2021-12-22 12:14:51,344 INFO L932 BasicCegarLoop]: 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 [2021-12-22 12:14:51,345 INFO L933 BasicCegarLoop]: 874 mSDtfsCounter, 6685 mSDsluCounter, 5097 mSDsCounter, 0 mSdLazyCounter, 5060 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6685 SdHoareTripleChecker+Valid, 5971 SdHoareTripleChecker+Invalid, 5124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 5060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:51,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6685 Valid, 5971 Invalid, 5124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 5060 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-22 12:14:51,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2021-12-22 12:14:51,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 1564. [2021-12-22 12:14:51,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.444299674267101) internal successors, (2217), 1563 states have internal predecessors, (2217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2217 transitions. [2021-12-22 12:14:51,440 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2217 transitions. Word has length 107 [2021-12-22 12:14:51,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:51,440 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2217 transitions. [2021-12-22 12:14:51,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:51,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2217 transitions. [2021-12-22 12:14:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 12:14:51,445 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:51,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:51,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 12:14:51,446 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:51,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1690715753, now seen corresponding path program 1 times [2021-12-22 12:14:51,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:51,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035018915] [2021-12-22 12:14:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:51,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:51,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:51,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:51,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035018915] [2021-12-22 12:14:51,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035018915] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:51,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:51,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:14:51,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986874716] [2021-12-22 12:14:51,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:51,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:14:51,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:51,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:14:51,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:14:51,577 INFO L87 Difference]: Start difference. First operand 1564 states and 2217 transitions. Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:53,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:53,266 INFO L93 Difference]: Finished difference Result 2972 states and 4248 transitions. [2021-12-22 12:14:53,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:14:53,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-22 12:14:53,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:53,273 INFO L225 Difference]: With dead ends: 2972 [2021-12-22 12:14:53,274 INFO L226 Difference]: Without dead ends: 2757 [2021-12-22 12:14:53,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:14:53,275 INFO L933 BasicCegarLoop]: 865 mSDtfsCounter, 4336 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 3121 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4336 SdHoareTripleChecker+Valid, 3719 SdHoareTripleChecker+Invalid, 3160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:53,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4336 Valid, 3719 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3121 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 12:14:53,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2021-12-22 12:14:53,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 1564. [2021-12-22 12:14:53,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.4436482084690554) internal successors, (2216), 1563 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2216 transitions. [2021-12-22 12:14:53,413 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2216 transitions. Word has length 107 [2021-12-22 12:14:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:53,413 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2216 transitions. [2021-12-22 12:14:53,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:53,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2216 transitions. [2021-12-22 12:14:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 12:14:53,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:53,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:53,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-22 12:14:53,416 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:53,416 INFO L85 PathProgramCache]: Analyzing trace with hash 64636340, now seen corresponding path program 1 times [2021-12-22 12:14:53,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:53,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424592659] [2021-12-22 12:14:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:53,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:53,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:53,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424592659] [2021-12-22 12:14:53,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424592659] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:53,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:53,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 12:14:53,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24450142] [2021-12-22 12:14:53,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:53,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 12:14:53,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:53,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 12:14:53,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-22 12:14:53,560 INFO L87 Difference]: Start difference. First operand 1564 states and 2216 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:54,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:54,840 INFO L93 Difference]: Finished difference Result 2851 states and 4052 transitions. [2021-12-22 12:14:54,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 12:14:54,840 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-22 12:14:54,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:54,849 INFO L225 Difference]: With dead ends: 2851 [2021-12-22 12:14:54,849 INFO L226 Difference]: Without dead ends: 2667 [2021-12-22 12:14:54,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-22 12:14:54,850 INFO L933 BasicCegarLoop]: 853 mSDtfsCounter, 6838 mSDsluCounter, 3493 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6838 SdHoareTripleChecker+Valid, 4346 SdHoareTripleChecker+Invalid, 3895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:54,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6838 Valid, 4346 Invalid, 3895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 12:14:54,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2021-12-22 12:14:54,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 1564. [2021-12-22 12:14:54,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.442345276872964) internal successors, (2214), 1563 states have internal predecessors, (2214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:54,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2214 transitions. [2021-12-22 12:14:54,991 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2214 transitions. Word has length 107 [2021-12-22 12:14:54,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:54,991 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2214 transitions. [2021-12-22 12:14:54,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:54,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2214 transitions. [2021-12-22 12:14:54,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 12:14:54,994 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:54,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:54,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-22 12:14:54,994 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:54,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:54,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1233253698, now seen corresponding path program 1 times [2021-12-22 12:14:54,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:54,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970822935] [2021-12-22 12:14:54,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:54,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:55,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:55,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:55,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970822935] [2021-12-22 12:14:55,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970822935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:55,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:55,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 12:14:55,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24563529] [2021-12-22 12:14:55,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:55,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 12:14:55,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:55,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 12:14:55,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-22 12:14:55,128 INFO L87 Difference]: Start difference. First operand 1564 states and 2214 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:56,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:56,771 INFO L93 Difference]: Finished difference Result 3013 states and 4298 transitions. [2021-12-22 12:14:56,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 12:14:56,772 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-22 12:14:56,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:56,786 INFO L225 Difference]: With dead ends: 3013 [2021-12-22 12:14:56,786 INFO L226 Difference]: Without dead ends: 2749 [2021-12-22 12:14:56,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-22 12:14:56,793 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 4357 mSDsluCounter, 4491 mSDsCounter, 0 mSdLazyCounter, 4433 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4357 SdHoareTripleChecker+Valid, 5368 SdHoareTripleChecker+Invalid, 4471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 4433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:56,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4357 Valid, 5368 Invalid, 4471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 4433 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 12:14:56,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2021-12-22 12:14:56,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 1564. [2021-12-22 12:14:56,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.441042345276873) internal successors, (2212), 1563 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2212 transitions. [2021-12-22 12:14:56,922 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2212 transitions. Word has length 107 [2021-12-22 12:14:56,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:56,922 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2212 transitions. [2021-12-22 12:14:56,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:56,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2212 transitions. [2021-12-22 12:14:56,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 12:14:56,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:56,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:56,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-22 12:14:56,925 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:56,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:56,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1471385960, now seen corresponding path program 1 times [2021-12-22 12:14:56,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:56,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040557439] [2021-12-22 12:14:56,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:56,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:57,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:57,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040557439] [2021-12-22 12:14:57,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040557439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:57,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:57,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 12:14:57,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756799140] [2021-12-22 12:14:57,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:57,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 12:14:57,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:57,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 12:14:57,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-22 12:14:57,078 INFO L87 Difference]: Start difference. First operand 1564 states and 2212 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:59,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:59,202 INFO L93 Difference]: Finished difference Result 3007 states and 4294 transitions. [2021-12-22 12:14:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 12:14:59,202 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-22 12:14:59,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:59,207 INFO L225 Difference]: With dead ends: 3007 [2021-12-22 12:14:59,207 INFO L226 Difference]: Without dead ends: 2749 [2021-12-22 12:14:59,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-22 12:14:59,209 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 6393 mSDsluCounter, 4507 mSDsCounter, 0 mSdLazyCounter, 4429 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6393 SdHoareTripleChecker+Valid, 5384 SdHoareTripleChecker+Invalid, 4486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:59,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6393 Valid, 5384 Invalid, 4486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4429 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-22 12:14:59,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2021-12-22 12:14:59,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 1564. [2021-12-22 12:14:59,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.4397394136807817) internal successors, (2210), 1563 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:59,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2210 transitions. [2021-12-22 12:14:59,342 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2210 transitions. Word has length 107 [2021-12-22 12:14:59,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:59,342 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2210 transitions. [2021-12-22 12:14:59,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:59,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2210 transitions. [2021-12-22 12:14:59,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 12:14:59,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:59,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:59,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-22 12:14:59,346 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:59,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1678647856, now seen corresponding path program 1 times [2021-12-22 12:14:59,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:59,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055514518] [2021-12-22 12:14:59,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:59,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:59,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:59,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055514518] [2021-12-22 12:14:59,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055514518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:59,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:59,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 12:14:59,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562629057] [2021-12-22 12:14:59,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:59,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 12:14:59,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:59,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 12:14:59,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-22 12:14:59,474 INFO L87 Difference]: Start difference. First operand 1564 states and 2210 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:00,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:00,809 INFO L93 Difference]: Finished difference Result 2683 states and 3667 transitions. [2021-12-22 12:15:00,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 12:15:00,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-22 12:15:00,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:00,818 INFO L225 Difference]: With dead ends: 2683 [2021-12-22 12:15:00,818 INFO L226 Difference]: Without dead ends: 2023 [2021-12-22 12:15:00,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-12-22 12:15:00,825 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 7420 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7420 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:00,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7420 Valid, 2093 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 12:15:00,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2021-12-22 12:15:00,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1564. [2021-12-22 12:15:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.439087947882736) internal successors, (2209), 1563 states have internal predecessors, (2209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:00,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2209 transitions. [2021-12-22 12:15:00,948 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2209 transitions. Word has length 107 [2021-12-22 12:15:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:00,948 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2209 transitions. [2021-12-22 12:15:00,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2209 transitions. [2021-12-22 12:15:00,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-22 12:15:00,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:00,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:00,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-22 12:15:00,972 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:00,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:00,972 INFO L85 PathProgramCache]: Analyzing trace with hash -27908421, now seen corresponding path program 1 times [2021-12-22 12:15:00,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:00,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087831662] [2021-12-22 12:15:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:00,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:01,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:01,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:01,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087831662] [2021-12-22 12:15:01,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087831662] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:01,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:01,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:01,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237776159] [2021-12-22 12:15:01,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:01,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:01,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:01,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:01,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:01,123 INFO L87 Difference]: Start difference. First operand 1564 states and 2209 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:03,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:03,045 INFO L93 Difference]: Finished difference Result 2184 states and 3119 transitions. [2021-12-22 12:15:03,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:03,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-22 12:15:03,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:03,049 INFO L225 Difference]: With dead ends: 2184 [2021-12-22 12:15:03,049 INFO L226 Difference]: Without dead ends: 1800 [2021-12-22 12:15:03,050 INFO L932 BasicCegarLoop]: 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 [2021-12-22 12:15:03,051 INFO L933 BasicCegarLoop]: 811 mSDtfsCounter, 4827 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 3546 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4827 SdHoareTripleChecker+Valid, 4389 SdHoareTripleChecker+Invalid, 3573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:03,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4827 Valid, 4389 Invalid, 3573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3546 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-22 12:15:03,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-12-22 12:15:03,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1543. [2021-12-22 12:15:03,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4392338177014532) internal successors, (2179), 1542 states have internal predecessors, (2179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2179 transitions. [2021-12-22 12:15:03,167 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2179 transitions. Word has length 109 [2021-12-22 12:15:03,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:03,167 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2179 transitions. [2021-12-22 12:15:03,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:03,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2179 transitions. [2021-12-22 12:15:03,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-22 12:15:03,188 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:03,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:03,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 12:15:03,189 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:03,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:03,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1087108112, now seen corresponding path program 1 times [2021-12-22 12:15:03,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:03,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458779977] [2021-12-22 12:15:03,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:03,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:03,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:03,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:03,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458779977] [2021-12-22 12:15:03,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458779977] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:03,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:03,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:03,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763785736] [2021-12-22 12:15:03,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:03,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:03,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:03,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:03,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:03,337 INFO L87 Difference]: Start difference. First operand 1543 states and 2179 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:04,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:04,690 INFO L93 Difference]: Finished difference Result 3015 states and 4313 transitions. [2021-12-22 12:15:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:04,691 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-22 12:15:04,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:04,695 INFO L225 Difference]: With dead ends: 3015 [2021-12-22 12:15:04,695 INFO L226 Difference]: Without dead ends: 2754 [2021-12-22 12:15:04,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:04,696 INFO L933 BasicCegarLoop]: 980 mSDtfsCounter, 8002 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8002 SdHoareTripleChecker+Valid, 4266 SdHoareTripleChecker+Invalid, 3529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:04,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8002 Valid, 4266 Invalid, 3529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 12:15:04,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-12-22 12:15:04,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1543. [2021-12-22 12:15:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4385733157199472) internal successors, (2178), 1542 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:04,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2178 transitions. [2021-12-22 12:15:04,818 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2178 transitions. Word has length 109 [2021-12-22 12:15:04,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:04,818 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2178 transitions. [2021-12-22 12:15:04,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:04,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2178 transitions. [2021-12-22 12:15:04,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-22 12:15:04,820 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:04,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:04,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 12:15:04,821 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:04,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:04,821 INFO L85 PathProgramCache]: Analyzing trace with hash -604463307, now seen corresponding path program 1 times [2021-12-22 12:15:04,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:04,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192320225] [2021-12-22 12:15:04,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:04,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:04,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:04,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:04,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192320225] [2021-12-22 12:15:04,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192320225] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:04,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:04,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:04,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471635399] [2021-12-22 12:15:04,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:04,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:04,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:04,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:04,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:04,918 INFO L87 Difference]: Start difference. First operand 1543 states and 2178 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:06,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:06,458 INFO L93 Difference]: Finished difference Result 2929 states and 4178 transitions. [2021-12-22 12:15:06,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:06,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-22 12:15:06,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:06,478 INFO L225 Difference]: With dead ends: 2929 [2021-12-22 12:15:06,478 INFO L226 Difference]: Without dead ends: 2722 [2021-12-22 12:15:06,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:06,480 INFO L933 BasicCegarLoop]: 928 mSDtfsCounter, 6113 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 3344 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6113 SdHoareTripleChecker+Valid, 4017 SdHoareTripleChecker+Invalid, 3401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:06,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6113 Valid, 4017 Invalid, 3401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3344 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 12:15:06,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-22 12:15:06,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-22 12:15:06,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4379128137384412) internal successors, (2177), 1542 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:06,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2177 transitions. [2021-12-22 12:15:06,617 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2177 transitions. Word has length 109 [2021-12-22 12:15:06,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:06,617 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2177 transitions. [2021-12-22 12:15:06,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:06,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2177 transitions. [2021-12-22 12:15:06,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-22 12:15:06,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:06,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:06,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-22 12:15:06,619 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:06,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:06,620 INFO L85 PathProgramCache]: Analyzing trace with hash 70295, now seen corresponding path program 1 times [2021-12-22 12:15:06,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:06,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848968990] [2021-12-22 12:15:06,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:06,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:06,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:06,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848968990] [2021-12-22 12:15:06,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848968990] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:06,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:06,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:06,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359889655] [2021-12-22 12:15:06,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:06,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:06,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:06,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:06,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:06,712 INFO L87 Difference]: Start difference. First operand 1543 states and 2177 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:07,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:07,962 INFO L93 Difference]: Finished difference Result 2828 states and 4007 transitions. [2021-12-22 12:15:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:07,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-22 12:15:07,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:07,988 INFO L225 Difference]: With dead ends: 2828 [2021-12-22 12:15:07,988 INFO L226 Difference]: Without dead ends: 2650 [2021-12-22 12:15:07,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:07,990 INFO L933 BasicCegarLoop]: 853 mSDtfsCounter, 4811 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4811 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:07,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4811 Valid, 3633 Invalid, 3261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-22 12:15:07,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-22 12:15:08,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-22 12:15:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4372523117569354) internal successors, (2176), 1542 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:08,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2176 transitions. [2021-12-22 12:15:08,141 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2176 transitions. Word has length 109 [2021-12-22 12:15:08,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:08,141 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2176 transitions. [2021-12-22 12:15:08,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:08,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2176 transitions. [2021-12-22 12:15:08,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-22 12:15:08,144 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:08,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:08,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-22 12:15:08,145 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:08,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:08,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1297819743, now seen corresponding path program 1 times [2021-12-22 12:15:08,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:08,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136363599] [2021-12-22 12:15:08,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:08,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:08,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:08,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:08,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136363599] [2021-12-22 12:15:08,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136363599] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:08,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:08,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:08,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804828442] [2021-12-22 12:15:08,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:08,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:08,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:08,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:08,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:08,255 INFO L87 Difference]: Start difference. First operand 1543 states and 2176 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:09,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:09,461 INFO L93 Difference]: Finished difference Result 2952 states and 4197 transitions. [2021-12-22 12:15:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:09,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-22 12:15:09,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:09,489 INFO L225 Difference]: With dead ends: 2952 [2021-12-22 12:15:09,490 INFO L226 Difference]: Without dead ends: 2722 [2021-12-22 12:15:09,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:09,491 INFO L933 BasicCegarLoop]: 952 mSDtfsCounter, 6235 mSDsluCounter, 3095 mSDsCounter, 0 mSdLazyCounter, 3349 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6235 SdHoareTripleChecker+Valid, 4047 SdHoareTripleChecker+Invalid, 3406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:09,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6235 Valid, 4047 Invalid, 3406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3349 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-22 12:15:09,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-22 12:15:09,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-22 12:15:09,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4365918097754293) internal successors, (2175), 1542 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2175 transitions. [2021-12-22 12:15:09,681 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2175 transitions. Word has length 109 [2021-12-22 12:15:09,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:09,681 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2175 transitions. [2021-12-22 12:15:09,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:09,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2175 transitions. [2021-12-22 12:15:09,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-22 12:15:09,683 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:09,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:09,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-22 12:15:09,684 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:09,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:09,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1406819915, now seen corresponding path program 1 times [2021-12-22 12:15:09,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:09,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392696288] [2021-12-22 12:15:09,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:09,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:09,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:09,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:09,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392696288] [2021-12-22 12:15:09,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392696288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:09,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:09,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:09,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276424265] [2021-12-22 12:15:09,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:09,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:09,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:09,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:09,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:09,789 INFO L87 Difference]: Start difference. First operand 1543 states and 2175 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:11,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:11,239 INFO L93 Difference]: Finished difference Result 2937 states and 4181 transitions. [2021-12-22 12:15:11,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:11,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-22 12:15:11,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:11,243 INFO L225 Difference]: With dead ends: 2937 [2021-12-22 12:15:11,243 INFO L226 Difference]: Without dead ends: 2722 [2021-12-22 12:15:11,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:11,244 INFO L933 BasicCegarLoop]: 952 mSDtfsCounter, 8113 mSDsluCounter, 3114 mSDsCounter, 0 mSdLazyCounter, 3347 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8113 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 3347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:11,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8113 Valid, 4066 Invalid, 3422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 3347 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 12:15:11,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-22 12:15:11,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-22 12:15:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4359313077939233) internal successors, (2174), 1542 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2174 transitions. [2021-12-22 12:15:11,406 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2174 transitions. Word has length 109 [2021-12-22 12:15:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:11,407 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2174 transitions. [2021-12-22 12:15:11,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:11,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2174 transitions. [2021-12-22 12:15:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-22 12:15:11,409 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:11,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:11,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-22 12:15:11,410 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:11,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:11,410 INFO L85 PathProgramCache]: Analyzing trace with hash -59557012, now seen corresponding path program 1 times [2021-12-22 12:15:11,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:11,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094661192] [2021-12-22 12:15:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:11,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:11,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:11,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:11,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094661192] [2021-12-22 12:15:11,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094661192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:11,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:11,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 12:15:11,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69223498] [2021-12-22 12:15:11,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:11,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 12:15:11,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:11,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 12:15:11,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-22 12:15:11,560 INFO L87 Difference]: Start difference. First operand 1543 states and 2174 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:13,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:13,255 INFO L93 Difference]: Finished difference Result 2735 states and 3901 transitions. [2021-12-22 12:15:13,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 12:15:13,256 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-22 12:15:13,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:13,258 INFO L225 Difference]: With dead ends: 2735 [2021-12-22 12:15:13,258 INFO L226 Difference]: Without dead ends: 2085 [2021-12-22 12:15:13,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2021-12-22 12:15:13,260 INFO L933 BasicCegarLoop]: 969 mSDtfsCounter, 5398 mSDsluCounter, 3721 mSDsCounter, 0 mSdLazyCounter, 3898 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5398 SdHoareTripleChecker+Valid, 4690 SdHoareTripleChecker+Invalid, 3940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:13,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5398 Valid, 4690 Invalid, 3940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3898 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 12:15:13,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2021-12-22 12:15:13,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1543. [2021-12-22 12:15:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4346103038309115) internal successors, (2172), 1542 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:13,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2172 transitions. [2021-12-22 12:15:13,448 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2172 transitions. Word has length 109 [2021-12-22 12:15:13,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:13,448 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2172 transitions. [2021-12-22 12:15:13,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:13,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2172 transitions. [2021-12-22 12:15:13,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 12:15:13,450 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:13,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:13,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-22 12:15:13,451 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:13,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:13,451 INFO L85 PathProgramCache]: Analyzing trace with hash 141096883, now seen corresponding path program 1 times [2021-12-22 12:15:13,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:13,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688005405] [2021-12-22 12:15:13,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:13,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:13,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:13,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688005405] [2021-12-22 12:15:13,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688005405] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:13,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:13,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:13,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23211627] [2021-12-22 12:15:13,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:13,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:13,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:13,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:13,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:13,543 INFO L87 Difference]: Start difference. First operand 1543 states and 2172 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:14,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:14,929 INFO L93 Difference]: Finished difference Result 2828 states and 4000 transitions. [2021-12-22 12:15:14,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-22 12:15:14,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:14,937 INFO L225 Difference]: With dead ends: 2828 [2021-12-22 12:15:14,937 INFO L226 Difference]: Without dead ends: 2650 [2021-12-22 12:15:14,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:14,938 INFO L933 BasicCegarLoop]: 853 mSDtfsCounter, 6119 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 3089 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6119 SdHoareTripleChecker+Valid, 3635 SdHoareTripleChecker+Invalid, 3280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 3089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:14,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6119 Valid, 3635 Invalid, 3280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 3089 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-22 12:15:14,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-22 12:15:15,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-22 12:15:15,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4339498018494055) internal successors, (2171), 1542 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:15,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2171 transitions. [2021-12-22 12:15:15,114 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2171 transitions. Word has length 111 [2021-12-22 12:15:15,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:15,115 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2171 transitions. [2021-12-22 12:15:15,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:15,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2171 transitions. [2021-12-22 12:15:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 12:15:15,117 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:15,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:15,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-22 12:15:15,117 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:15,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:15,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1756608252, now seen corresponding path program 1 times [2021-12-22 12:15:15,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:15,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862325803] [2021-12-22 12:15:15,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:15,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:15,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:15,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862325803] [2021-12-22 12:15:15,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862325803] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:15,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:15,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:15,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125596655] [2021-12-22 12:15:15,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:15,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:15,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:15,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:15,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:15,241 INFO L87 Difference]: Start difference. First operand 1543 states and 2171 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:17,072 INFO L93 Difference]: Finished difference Result 2883 states and 4099 transitions. [2021-12-22 12:15:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:17,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-22 12:15:17,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:17,075 INFO L225 Difference]: With dead ends: 2883 [2021-12-22 12:15:17,075 INFO L226 Difference]: Without dead ends: 2698 [2021-12-22 12:15:17,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:17,077 INFO L933 BasicCegarLoop]: 1103 mSDtfsCounter, 6453 mSDsluCounter, 4577 mSDsCounter, 0 mSdLazyCounter, 4670 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6453 SdHoareTripleChecker+Valid, 5680 SdHoareTripleChecker+Invalid, 4768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:17,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6453 Valid, 5680 Invalid, 4768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4670 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 12:15:17,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-22 12:15:17,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-22 12:15:17,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4332892998678997) internal successors, (2170), 1542 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2170 transitions. [2021-12-22 12:15:17,256 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2170 transitions. Word has length 111 [2021-12-22 12:15:17,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:17,257 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2170 transitions. [2021-12-22 12:15:17,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:17,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2170 transitions. [2021-12-22 12:15:17,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 12:15:17,259 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:17,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:17,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-22 12:15:17,259 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:17,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:17,260 INFO L85 PathProgramCache]: Analyzing trace with hash 818178437, now seen corresponding path program 1 times [2021-12-22 12:15:17,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:17,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914030176] [2021-12-22 12:15:17,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:17,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:17,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:17,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914030176] [2021-12-22 12:15:17,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914030176] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:17,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:17,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:17,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399167005] [2021-12-22 12:15:17,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:17,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:17,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:17,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:17,384 INFO L87 Difference]: Start difference. First operand 1543 states and 2170 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:19,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:19,366 INFO L93 Difference]: Finished difference Result 2881 states and 4096 transitions. [2021-12-22 12:15:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:19,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-22 12:15:19,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:19,370 INFO L225 Difference]: With dead ends: 2881 [2021-12-22 12:15:19,370 INFO L226 Difference]: Without dead ends: 2698 [2021-12-22 12:15:19,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:19,372 INFO L933 BasicCegarLoop]: 1150 mSDtfsCounter, 6392 mSDsluCounter, 4736 mSDsCounter, 0 mSdLazyCounter, 4830 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6392 SdHoareTripleChecker+Valid, 5886 SdHoareTripleChecker+Invalid, 4926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 4830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:19,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6392 Valid, 5886 Invalid, 4926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 4830 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-22 12:15:19,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-22 12:15:19,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-22 12:15:19,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4326287978863936) internal successors, (2169), 1542 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:19,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2169 transitions. [2021-12-22 12:15:19,547 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2169 transitions. Word has length 111 [2021-12-22 12:15:19,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:19,547 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2169 transitions. [2021-12-22 12:15:19,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:19,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2169 transitions. [2021-12-22 12:15:19,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 12:15:19,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:19,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:19,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-22 12:15:19,550 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:19,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:19,550 INFO L85 PathProgramCache]: Analyzing trace with hash 265888723, now seen corresponding path program 1 times [2021-12-22 12:15:19,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:19,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219537188] [2021-12-22 12:15:19,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:19,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:19,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:19,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219537188] [2021-12-22 12:15:19,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219537188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:19,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:19,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:19,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363326704] [2021-12-22 12:15:19,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:19,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:19,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:19,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:19,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:19,643 INFO L87 Difference]: Start difference. First operand 1543 states and 2169 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:21,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:21,769 INFO L93 Difference]: Finished difference Result 2883 states and 4097 transitions. [2021-12-22 12:15:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:21,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-22 12:15:21,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:21,772 INFO L225 Difference]: With dead ends: 2883 [2021-12-22 12:15:21,772 INFO L226 Difference]: Without dead ends: 2698 [2021-12-22 12:15:21,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:21,774 INFO L933 BasicCegarLoop]: 1218 mSDtfsCounter, 5052 mSDsluCounter, 3809 mSDsCounter, 0 mSdLazyCounter, 4222 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5052 SdHoareTripleChecker+Valid, 5027 SdHoareTripleChecker+Invalid, 4308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 4222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:21,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5052 Valid, 5027 Invalid, 4308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 4222 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 12:15:21,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-22 12:15:21,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-22 12:15:21,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4319682959048876) internal successors, (2168), 1542 states have internal predecessors, (2168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:21,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2168 transitions. [2021-12-22 12:15:21,961 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2168 transitions. Word has length 111 [2021-12-22 12:15:21,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:21,961 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2168 transitions. [2021-12-22 12:15:21,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:21,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2168 transitions. [2021-12-22 12:15:21,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 12:15:21,963 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:21,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:21,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-22 12:15:21,970 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:21,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:21,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1099978144, now seen corresponding path program 1 times [2021-12-22 12:15:21,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:21,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878724755] [2021-12-22 12:15:21,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:21,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:22,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:22,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878724755] [2021-12-22 12:15:22,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878724755] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:22,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:22,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:22,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555775812] [2021-12-22 12:15:22,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:22,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:22,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:22,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:22,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:22,071 INFO L87 Difference]: Start difference. First operand 1543 states and 2168 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:24,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:24,040 INFO L93 Difference]: Finished difference Result 3038 states and 4321 transitions. [2021-12-22 12:15:24,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:24,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-22 12:15:24,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:24,044 INFO L225 Difference]: With dead ends: 3038 [2021-12-22 12:15:24,044 INFO L226 Difference]: Without dead ends: 2754 [2021-12-22 12:15:24,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:24,048 INFO L933 BasicCegarLoop]: 1328 mSDtfsCounter, 7016 mSDsluCounter, 3853 mSDsCounter, 0 mSdLazyCounter, 4119 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7016 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 4160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 4119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:24,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7016 Valid, 5181 Invalid, 4160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 4119 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-22 12:15:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-12-22 12:15:24,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1543. [2021-12-22 12:15:24,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4313077939233818) internal successors, (2167), 1542 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:24,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2167 transitions. [2021-12-22 12:15:24,269 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2167 transitions. Word has length 111 [2021-12-22 12:15:24,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:24,269 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2167 transitions. [2021-12-22 12:15:24,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:24,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2167 transitions. [2021-12-22 12:15:24,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 12:15:24,271 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:24,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:24,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-22 12:15:24,271 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:24,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:24,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1272512024, now seen corresponding path program 1 times [2021-12-22 12:15:24,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:24,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276838408] [2021-12-22 12:15:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:24,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:24,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:24,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276838408] [2021-12-22 12:15:24,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276838408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:24,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:24,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:24,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442336250] [2021-12-22 12:15:24,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:24,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:24,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:24,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:24,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:24,386 INFO L87 Difference]: Start difference. First operand 1543 states and 2167 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:26,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:26,006 INFO L93 Difference]: Finished difference Result 2824 states and 3991 transitions. [2021-12-22 12:15:26,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:26,008 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-22 12:15:26,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:26,011 INFO L225 Difference]: With dead ends: 2824 [2021-12-22 12:15:26,011 INFO L226 Difference]: Without dead ends: 2650 [2021-12-22 12:15:26,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:26,012 INFO L933 BasicCegarLoop]: 895 mSDtfsCounter, 5928 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5928 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 3417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:26,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5928 Valid, 3805 Invalid, 3417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 3232 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 12:15:26,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-22 12:15:26,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-22 12:15:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4306472919418758) internal successors, (2166), 1542 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2166 transitions. [2021-12-22 12:15:26,210 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2166 transitions. Word has length 111 [2021-12-22 12:15:26,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:26,210 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2166 transitions. [2021-12-22 12:15:26,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:26,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2166 transitions. [2021-12-22 12:15:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 12:15:26,212 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:26,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:26,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-22 12:15:26,212 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:26,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:26,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1406535780, now seen corresponding path program 1 times [2021-12-22 12:15:26,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:26,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331085974] [2021-12-22 12:15:26,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:26,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:26,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:26,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:26,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331085974] [2021-12-22 12:15:26,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331085974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:26,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:26,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:26,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414831952] [2021-12-22 12:15:26,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:26,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:26,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:26,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:26,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:26,323 INFO L87 Difference]: Start difference. First operand 1543 states and 2166 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:28,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:28,186 INFO L93 Difference]: Finished difference Result 2889 states and 4099 transitions. [2021-12-22 12:15:28,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:28,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-22 12:15:28,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:28,189 INFO L225 Difference]: With dead ends: 2889 [2021-12-22 12:15:28,189 INFO L226 Difference]: Without dead ends: 2698 [2021-12-22 12:15:28,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:28,190 INFO L933 BasicCegarLoop]: 1171 mSDtfsCounter, 5995 mSDsluCounter, 3670 mSDsCounter, 0 mSdLazyCounter, 4014 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5995 SdHoareTripleChecker+Valid, 4841 SdHoareTripleChecker+Invalid, 4121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:28,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5995 Valid, 4841 Invalid, 4121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 4014 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 12:15:28,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-22 12:15:28,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-22 12:15:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.42998678996037) internal successors, (2165), 1542 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2165 transitions. [2021-12-22 12:15:28,380 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2165 transitions. Word has length 111 [2021-12-22 12:15:28,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:28,380 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2165 transitions. [2021-12-22 12:15:28,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2165 transitions. [2021-12-22 12:15:28,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 12:15:28,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:28,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:28,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-22 12:15:28,383 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:28,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:28,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2135295553, now seen corresponding path program 1 times [2021-12-22 12:15:28,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:28,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446293551] [2021-12-22 12:15:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:28,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:28,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:28,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:28,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446293551] [2021-12-22 12:15:28,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446293551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:28,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:28,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:28,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780213538] [2021-12-22 12:15:28,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:28,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:28,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:28,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:28,474 INFO L87 Difference]: Start difference. First operand 1543 states and 2165 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:30,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:30,380 INFO L93 Difference]: Finished difference Result 3120 states and 4433 transitions. [2021-12-22 12:15:30,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:30,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-22 12:15:30,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:30,384 INFO L225 Difference]: With dead ends: 3120 [2021-12-22 12:15:30,384 INFO L226 Difference]: Without dead ends: 2754 [2021-12-22 12:15:30,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:30,385 INFO L933 BasicCegarLoop]: 1209 mSDtfsCounter, 3726 mSDsluCounter, 3921 mSDsCounter, 0 mSdLazyCounter, 4002 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3726 SdHoareTripleChecker+Valid, 5130 SdHoareTripleChecker+Invalid, 4025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 4002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:30,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3726 Valid, 5130 Invalid, 4025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 4002 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 12:15:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-12-22 12:15:30,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1543. [2021-12-22 12:15:30,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.428665785997358) internal successors, (2163), 1542 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:30,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2163 transitions. [2021-12-22 12:15:30,592 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2163 transitions. Word has length 111 [2021-12-22 12:15:30,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:30,592 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2163 transitions. [2021-12-22 12:15:30,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:30,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2163 transitions. [2021-12-22 12:15:30,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 12:15:30,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:30,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:30,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-22 12:15:30,607 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:30,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:30,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1814914143, now seen corresponding path program 1 times [2021-12-22 12:15:30,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:30,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055593214] [2021-12-22 12:15:30,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:30,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:30,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:30,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:30,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055593214] [2021-12-22 12:15:30,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055593214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:30,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:30,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:30,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122481637] [2021-12-22 12:15:30,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:30,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:30,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:30,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:30,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:30,730 INFO L87 Difference]: Start difference. First operand 1543 states and 2163 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:33,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:33,011 INFO L93 Difference]: Finished difference Result 2902 states and 4117 transitions. [2021-12-22 12:15:33,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:33,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-22 12:15:33,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:33,014 INFO L225 Difference]: With dead ends: 2902 [2021-12-22 12:15:33,015 INFO L226 Difference]: Without dead ends: 2698 [2021-12-22 12:15:33,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:33,016 INFO L933 BasicCegarLoop]: 1107 mSDtfsCounter, 6419 mSDsluCounter, 4589 mSDsCounter, 0 mSdLazyCounter, 4630 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6419 SdHoareTripleChecker+Valid, 5696 SdHoareTripleChecker+Invalid, 4728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:33,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6419 Valid, 5696 Invalid, 4728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4630 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 12:15:33,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-22 12:15:33,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-22 12:15:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4273447820343461) internal successors, (2161), 1542 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:33,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2161 transitions. [2021-12-22 12:15:33,221 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2161 transitions. Word has length 111 [2021-12-22 12:15:33,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:33,221 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2161 transitions. [2021-12-22 12:15:33,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:33,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2161 transitions. [2021-12-22 12:15:33,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 12:15:33,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:33,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:33,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-22 12:15:33,224 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:33,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:33,224 INFO L85 PathProgramCache]: Analyzing trace with hash 198106909, now seen corresponding path program 1 times [2021-12-22 12:15:33,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:33,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897738222] [2021-12-22 12:15:33,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:33,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:33,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:33,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:33,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897738222] [2021-12-22 12:15:33,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897738222] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:33,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:33,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:33,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141754202] [2021-12-22 12:15:33,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:33,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:33,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:33,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:33,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:33,327 INFO L87 Difference]: Start difference. First operand 1543 states and 2161 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:35,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:35,007 INFO L93 Difference]: Finished difference Result 2908 states and 4120 transitions. [2021-12-22 12:15:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:35,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-22 12:15:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:35,011 INFO L225 Difference]: With dead ends: 2908 [2021-12-22 12:15:35,011 INFO L226 Difference]: Without dead ends: 2698 [2021-12-22 12:15:35,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:35,013 INFO L933 BasicCegarLoop]: 1175 mSDtfsCounter, 5191 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 3993 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5191 SdHoareTripleChecker+Valid, 4863 SdHoareTripleChecker+Invalid, 4082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:35,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5191 Valid, 4863 Invalid, 4082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 3993 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 12:15:35,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states.