./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 3a877d22 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 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:37:58,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:37:58,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:37:58,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:37:58,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:37:58,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:37:58,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:37:58,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:37:58,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:37:58,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:37:58,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:37:58,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:37:58,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:37:58,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:37:58,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:37:58,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:37:58,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:37:58,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:37:58,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:37:58,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:37:58,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:37:58,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:37:58,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:37:58,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:37:58,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:37:58,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:37:58,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:37:58,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:37:58,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:37:58,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:37:58,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:37:58,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:37:58,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:37:58,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:37:58,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:37:58,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:37:58,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:37:58,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:37:58,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:37:58,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:37:58,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:37:58,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:37:58,531 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:37:58,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:37:58,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:37:58,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:37:58,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:37:58,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:37:58,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:37:58,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:37:58,534 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:37:58,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:37:58,535 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:37:58,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:37:58,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:37:58,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:37:58,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:37:58,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:37:58,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:37:58,536 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:37:58,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:37:58,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:37:58,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:37:58,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:37:58,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:37:58,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:37:58,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:37:58,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:37:58,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:37:58,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:37:58,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:37:58,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:37:58,539 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:37:58,539 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:37:58,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:37:58,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:37:58,539 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 [2021-12-15 11:37:58,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:37:58,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:37:58,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:37:58,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:37:58,813 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:37:58,814 INFO L432 ainManager$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 [2021-12-15 11:37:58,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/373f1d497/4684c2de003f49cc8953d258da2b2909/FLAG65a176fa1 [2021-12-15 11:37:59,623 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:37:59,623 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 [2021-12-15 11:37:59,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/373f1d497/4684c2de003f49cc8953d258da2b2909/FLAG65a176fa1 [2021-12-15 11:37:59,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/373f1d497/4684c2de003f49cc8953d258da2b2909 [2021-12-15 11:37:59,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:37:59,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:37:59,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:37:59,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:37:59,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:37:59,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:37:59" (1/1) ... [2021-12-15 11:37:59,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf019f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:59, skipping insertion in model container [2021-12-15 11:37:59,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:37:59" (1/1) ... [2021-12-15 11:37:59,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:38:00,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:38:00,553 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] [2021-12-15 11:38:00,590 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] [2021-12-15 11:38:00,599 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] [2021-12-15 11:38:00,606 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[24107,24120] [2021-12-15 11:38:00,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2021-12-15 11:38:00,623 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] [2021-12-15 11:38:00,632 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] [2021-12-15 11:38:00,655 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] [2021-12-15 11:38:00,660 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] [2021-12-15 11:38:00,666 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] [2021-12-15 11:38:00,675 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] [2021-12-15 11:38:00,692 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] [2021-12-15 11:38:00,697 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] [2021-12-15 11:38:00,703 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] [2021-12-15 11:38:00,712 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] [2021-12-15 11:38:00,726 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] [2021-12-15 11:38:00,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2021-12-15 11:38:00,753 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] [2021-12-15 11:38:00,758 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] [2021-12-15 11:38:00,767 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] [2021-12-15 11:38:00,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2021-12-15 11:38:00,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2021-12-15 11:38:00,847 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] [2021-12-15 11:38:00,870 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] [2021-12-15 11:38:00,876 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] [2021-12-15 11:38:00,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2021-12-15 11:38:00,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2021-12-15 11:38:00,952 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] [2021-12-15 11:38:00,992 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] [2021-12-15 11:38:01,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:38:01,510 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:38:01,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2021-12-15 11:38:01,604 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] [2021-12-15 11:38:01,609 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] [2021-12-15 11:38:01,613 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] [2021-12-15 11:38:01,618 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] [2021-12-15 11:38:01,621 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] [2021-12-15 11:38:01,625 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] [2021-12-15 11:38:01,633 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] [2021-12-15 11:38:01,637 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] [2021-12-15 11:38:01,641 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] [2021-12-15 11:38:01,649 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] [2021-12-15 11:38:01,661 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] [2021-12-15 11:38:01,665 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] [2021-12-15 11:38:01,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2021-12-15 11:38:01,685 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] [2021-12-15 11:38:01,699 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] [2021-12-15 11:38:01,715 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] [2021-12-15 11:38:01,719 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] [2021-12-15 11:38:01,724 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] [2021-12-15 11:38:01,731 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] [2021-12-15 11:38:01,742 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] [2021-12-15 11:38:01,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2021-12-15 11:38:01,791 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] [2021-12-15 11:38:01,794 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] [2021-12-15 11:38:01,798 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] [2021-12-15 11:38:01,805 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] [2021-12-15 11:38:01,815 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] [2021-12-15 11:38:01,847 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] [2021-12-15 11:38:01,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2021-12-15 11:38:02,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:38:02,287 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:38:02,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02 WrapperNode [2021-12-15 11:38:02,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:38:02,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:38:02,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:38:02,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:38:02,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (1/1) ... [2021-12-15 11:38:02,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (1/1) ... [2021-12-15 11:38:02,520 INFO L137 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12087 [2021-12-15 11:38:02,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:38:02,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:38:02,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:38:02,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:38:02,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (1/1) ... [2021-12-15 11:38:02,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (1/1) ... [2021-12-15 11:38:02,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (1/1) ... [2021-12-15 11:38:02,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (1/1) ... [2021-12-15 11:38:02,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (1/1) ... [2021-12-15 11:38:02,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (1/1) ... [2021-12-15 11:38:02,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (1/1) ... [2021-12-15 11:38:02,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:38:02,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:38:02,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:38:02,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:38:02,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (1/1) ... [2021-12-15 11:38:02,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:38:02,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:38:02,825 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) [2021-12-15 11:38:02,851 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 [2021-12-15 11:38:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:38:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:38:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:38:02,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:38:03,266 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:38:03,268 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:38:07,297 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:38:07,326 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:38:07,326 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:38:07,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:38:07 BoogieIcfgContainer [2021-12-15 11:38:07,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:38:07,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:38:07,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:38:07,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:38:07,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:37:59" (1/3) ... [2021-12-15 11:38:07,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500485c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:38:07, skipping insertion in model container [2021-12-15 11:38:07,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:02" (2/3) ... [2021-12-15 11:38:07,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500485c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:38:07, skipping insertion in model container [2021-12-15 11:38:07,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:38:07" (3/3) ... [2021-12-15 11:38:07,341 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-15 11:38:07,346 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:38:07,346 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-12-15 11:38:07,403 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:38:07,409 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 [2021-12-15 11:38:07,409 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-12-15 11:38:07,453 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) [2021-12-15 11:38:07,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-15 11:38:07,483 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:07,484 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] [2021-12-15 11:38:07,484 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)] === [2021-12-15 11:38:07,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:07,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1776091410, now seen corresponding path program 1 times [2021-12-15 11:38:07,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:07,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060424267] [2021-12-15 11:38:07,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:07,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:07,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:07,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060424267] [2021-12-15 11:38:07,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060424267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:07,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:07,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:07,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953028746] [2021-12-15 11:38:07,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:07,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:07,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:07,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:07,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:07,953 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) [2021-12-15 11:38:09,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:09,276 INFO L93 Difference]: Finished difference Result 3060 states and 5456 transitions. [2021-12-15 11:38:09,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:09,285 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 [2021-12-15 11:38:09,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:09,310 INFO L225 Difference]: With dead ends: 3060 [2021-12-15 11:38:09,310 INFO L226 Difference]: Without dead ends: 1597 [2021-12-15 11:38:09,321 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 [2021-12-15 11:38:09,331 INFO L933 BasicCegarLoop]: 1828 mSDtfsCounter, 8284 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8284 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:09,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8284 Valid, 1906 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-15 11:38:09,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2021-12-15 11:38:09,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1597. [2021-12-15 11:38:09,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1568 states have (on average 1.3214285714285714) internal successors, (2072), 1596 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:09,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2072 transitions. [2021-12-15 11:38:09,432 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2072 transitions. Word has length 100 [2021-12-15 11:38:09,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:09,433 INFO L470 AbstractCegarLoop]: Abstraction has 1597 states and 2072 transitions. [2021-12-15 11:38:09,433 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) [2021-12-15 11:38:09,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2072 transitions. [2021-12-15 11:38:09,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-15 11:38:09,439 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:09,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:09,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:38:09,440 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)] === [2021-12-15 11:38:09,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:09,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1206064956, now seen corresponding path program 1 times [2021-12-15 11:38:09,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:09,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627786445] [2021-12-15 11:38:09,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:09,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:09,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:09,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627786445] [2021-12-15 11:38:09,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627786445] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:09,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:09,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:09,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953061673] [2021-12-15 11:38:09,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:09,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:09,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:09,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:09,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:09,692 INFO L87 Difference]: Start difference. First operand 1597 states and 2072 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:10,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:10,485 INFO L93 Difference]: Finished difference Result 2584 states and 3471 transitions. [2021-12-15 11:38:10,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:10,486 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 [2021-12-15 11:38:10,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:10,491 INFO L225 Difference]: With dead ends: 2584 [2021-12-15 11:38:10,492 INFO L226 Difference]: Without dead ends: 1341 [2021-12-15 11:38:10,493 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 [2021-12-15 11:38:10,494 INFO L933 BasicCegarLoop]: 989 mSDtfsCounter, 5230 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5230 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:10,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5230 Valid, 1017 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:38:10,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2021-12-15 11:38:10,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1341. [2021-12-15 11:38:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1312 states have (on average 1.3589939024390243) internal successors, (1783), 1340 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:10,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1783 transitions. [2021-12-15 11:38:10,538 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1783 transitions. Word has length 101 [2021-12-15 11:38:10,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:10,543 INFO L470 AbstractCegarLoop]: Abstraction has 1341 states and 1783 transitions. [2021-12-15 11:38:10,544 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) [2021-12-15 11:38:10,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1783 transitions. [2021-12-15 11:38:10,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-15 11:38:10,548 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:10,548 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] [2021-12-15 11:38:10,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 11:38:10,549 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)] === [2021-12-15 11:38:10,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:10,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2122960339, now seen corresponding path program 1 times [2021-12-15 11:38:10,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:10,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774348843] [2021-12-15 11:38:10,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:10,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:10,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:10,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:10,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774348843] [2021-12-15 11:38:10,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774348843] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:10,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:10,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:10,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050026908] [2021-12-15 11:38:10,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:10,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:10,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:10,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:10,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:10,652 INFO L87 Difference]: Start difference. First operand 1341 states and 1783 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:11,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:11,763 INFO L93 Difference]: Finished difference Result 2907 states and 3984 transitions. [2021-12-15 11:38:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:11,763 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 [2021-12-15 11:38:11,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:11,770 INFO L225 Difference]: With dead ends: 2907 [2021-12-15 11:38:11,771 INFO L226 Difference]: Without dead ends: 1771 [2021-12-15 11:38:11,772 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 [2021-12-15 11:38:11,773 INFO L933 BasicCegarLoop]: 907 mSDtfsCounter, 6383 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6383 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:11,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6383 Valid, 1355 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 11:38:11,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2021-12-15 11:38:11,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1669. [2021-12-15 11:38:11,829 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) [2021-12-15 11:38:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2337 transitions. [2021-12-15 11:38:11,834 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2337 transitions. Word has length 102 [2021-12-15 11:38:11,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:11,834 INFO L470 AbstractCegarLoop]: Abstraction has 1669 states and 2337 transitions. [2021-12-15 11:38:11,834 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) [2021-12-15 11:38:11,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2337 transitions. [2021-12-15 11:38:11,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-15 11:38:11,838 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:11,838 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] [2021-12-15 11:38:11,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 11:38:11,839 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)] === [2021-12-15 11:38:11,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:11,839 INFO L85 PathProgramCache]: Analyzing trace with hash -151518128, now seen corresponding path program 1 times [2021-12-15 11:38:11,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:11,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984490512] [2021-12-15 11:38:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:11,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:11,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:11,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:11,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984490512] [2021-12-15 11:38:11,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984490512] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:11,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:11,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:11,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964694584] [2021-12-15 11:38:11,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:11,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:11,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:11,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:11,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:11,936 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) [2021-12-15 11:38:12,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:12,722 INFO L93 Difference]: Finished difference Result 3133 states and 4454 transitions. [2021-12-15 11:38:12,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:12,723 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 [2021-12-15 11:38:12,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:12,733 INFO L225 Difference]: With dead ends: 3133 [2021-12-15 11:38:12,734 INFO L226 Difference]: Without dead ends: 1617 [2021-12-15 11:38:12,738 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 [2021-12-15 11:38:12,744 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 4457 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4457 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:12,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4457 Valid, 813 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:38:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2021-12-15 11:38:12,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2021-12-15 11:38:12,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.4326196473551638) internal successors, (2275), 1616 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:12,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2275 transitions. [2021-12-15 11:38:12,807 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2275 transitions. Word has length 103 [2021-12-15 11:38:12,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:12,813 INFO L470 AbstractCegarLoop]: Abstraction has 1617 states and 2275 transitions. [2021-12-15 11:38:12,813 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) [2021-12-15 11:38:12,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2275 transitions. [2021-12-15 11:38:12,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-15 11:38:12,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:12,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:12,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 11:38:12,818 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)] === [2021-12-15 11:38:12,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:12,820 INFO L85 PathProgramCache]: Analyzing trace with hash -935643307, now seen corresponding path program 1 times [2021-12-15 11:38:12,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:12,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396567265] [2021-12-15 11:38:12,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:12,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:12,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:12,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396567265] [2021-12-15 11:38:12,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396567265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:12,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:12,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:12,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971362891] [2021-12-15 11:38:12,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:12,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:12,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:12,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:12,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:12,922 INFO L87 Difference]: Start difference. First operand 1617 states and 2275 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:13,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:13,949 INFO L93 Difference]: Finished difference Result 3081 states and 4390 transitions. [2021-12-15 11:38:13,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:13,949 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 [2021-12-15 11:38:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:13,955 INFO L225 Difference]: With dead ends: 3081 [2021-12-15 11:38:13,956 INFO L226 Difference]: Without dead ends: 1597 [2021-12-15 11:38:13,958 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 [2021-12-15 11:38:13,959 INFO L933 BasicCegarLoop]: 626 mSDtfsCounter, 4278 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4278 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:13,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4278 Valid, 678 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:38:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2021-12-15 11:38:14,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1597. [2021-12-15 11:38:14,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1568 states have (on average 1.434311224489796) internal successors, (2249), 1596 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2249 transitions. [2021-12-15 11:38:14,039 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2249 transitions. Word has length 104 [2021-12-15 11:38:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:14,041 INFO L470 AbstractCegarLoop]: Abstraction has 1597 states and 2249 transitions. [2021-12-15 11:38:14,041 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) [2021-12-15 11:38:14,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2249 transitions. [2021-12-15 11:38:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-15 11:38:14,045 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:14,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:14,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 11:38:14,045 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)] === [2021-12-15 11:38:14,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:14,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1565610801, now seen corresponding path program 1 times [2021-12-15 11:38:14,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:14,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130314182] [2021-12-15 11:38:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:14,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:14,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:14,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:14,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130314182] [2021-12-15 11:38:14,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130314182] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:14,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:14,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:14,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338724689] [2021-12-15 11:38:14,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:14,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:14,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:14,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:14,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:14,170 INFO L87 Difference]: Start difference. First operand 1597 states and 2249 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:14,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:14,935 INFO L93 Difference]: Finished difference Result 3061 states and 4362 transitions. [2021-12-15 11:38:14,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:14,936 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 [2021-12-15 11:38:14,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:14,942 INFO L225 Difference]: With dead ends: 3061 [2021-12-15 11:38:14,942 INFO L226 Difference]: Without dead ends: 1560 [2021-12-15 11:38:14,945 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 [2021-12-15 11:38:14,947 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 4394 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4394 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:14,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4394 Valid, 833 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:38:14,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2021-12-15 11:38:15,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1560. [2021-12-15 11:38:15,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1531 states have (on average 1.442194644023514) internal successors, (2208), 1559 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:15,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2208 transitions. [2021-12-15 11:38:15,025 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2208 transitions. Word has length 105 [2021-12-15 11:38:15,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:15,026 INFO L470 AbstractCegarLoop]: Abstraction has 1560 states and 2208 transitions. [2021-12-15 11:38:15,026 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) [2021-12-15 11:38:15,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2208 transitions. [2021-12-15 11:38:15,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-15 11:38:15,031 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:15,032 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] [2021-12-15 11:38:15,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 11:38:15,032 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)] === [2021-12-15 11:38:15,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:15,033 INFO L85 PathProgramCache]: Analyzing trace with hash -60330059, now seen corresponding path program 1 times [2021-12-15 11:38:15,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:15,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071341788] [2021-12-15 11:38:15,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:15,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:15,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:15,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071341788] [2021-12-15 11:38:15,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071341788] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:15,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:15,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:15,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132773067] [2021-12-15 11:38:15,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:15,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:15,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:15,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:15,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:15,153 INFO L87 Difference]: Start difference. First operand 1560 states and 2208 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:15,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:15,825 INFO L93 Difference]: Finished difference Result 3024 states and 4319 transitions. [2021-12-15 11:38:15,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:15,825 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 [2021-12-15 11:38:15,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:15,831 INFO L225 Difference]: With dead ends: 3024 [2021-12-15 11:38:15,831 INFO L226 Difference]: Without dead ends: 1543 [2021-12-15 11:38:15,834 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 [2021-12-15 11:38:15,835 INFO L933 BasicCegarLoop]: 806 mSDtfsCounter, 4320 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4320 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:15,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4320 Valid, 826 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:38:15,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2021-12-15 11:38:15,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1543. [2021-12-15 11:38:15,930 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) [2021-12-15 11:38:15,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2188 transitions. [2021-12-15 11:38:15,934 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2188 transitions. Word has length 106 [2021-12-15 11:38:15,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:15,934 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2188 transitions. [2021-12-15 11:38:15,934 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) [2021-12-15 11:38:15,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2188 transitions. [2021-12-15 11:38:15,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 11:38:15,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:15,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:15,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 11:38:15,938 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)] === [2021-12-15 11:38:15,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:15,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1619061170, now seen corresponding path program 1 times [2021-12-15 11:38:15,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:15,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013561407] [2021-12-15 11:38:15,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:15,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:16,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:16,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:16,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013561407] [2021-12-15 11:38:16,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013561407] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:16,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:16,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:38:16,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447935936] [2021-12-15 11:38:16,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:16,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:38:16,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:16,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:38:16,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:38:16,168 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) [2021-12-15 11:38:18,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:18,743 INFO L93 Difference]: Finished difference Result 2887 states and 4053 transitions. [2021-12-15 11:38:18,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-15 11:38:18,744 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 [2021-12-15 11:38:18,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:18,754 INFO L225 Difference]: With dead ends: 2887 [2021-12-15 11:38:18,754 INFO L226 Difference]: Without dead ends: 2716 [2021-12-15 11:38:18,756 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 [2021-12-15 11:38:18,757 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 6265 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 4129 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6265 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 4406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 4129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:18,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6265 Valid, 4224 Invalid, 4406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 4129 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-15 11:38:18,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2021-12-15 11:38:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1568. [2021-12-15 11:38:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4457439896036388) internal successors, (2225), 1567 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:18,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2225 transitions. [2021-12-15 11:38:18,843 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2225 transitions. Word has length 107 [2021-12-15 11:38:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:18,844 INFO L470 AbstractCegarLoop]: Abstraction has 1568 states and 2225 transitions. [2021-12-15 11:38:18,844 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) [2021-12-15 11:38:18,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2225 transitions. [2021-12-15 11:38:18,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 11:38:18,847 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:18,848 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] [2021-12-15 11:38:18,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 11:38:18,848 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)] === [2021-12-15 11:38:18,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:18,849 INFO L85 PathProgramCache]: Analyzing trace with hash 321171132, now seen corresponding path program 1 times [2021-12-15 11:38:18,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:18,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365332186] [2021-12-15 11:38:18,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:18,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:19,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:19,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365332186] [2021-12-15 11:38:19,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365332186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:19,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:19,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:38:19,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578181029] [2021-12-15 11:38:19,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:19,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:38:19,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:19,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:38:19,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:38:19,064 INFO L87 Difference]: Start difference. First operand 1568 states and 2225 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:21,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:21,269 INFO L93 Difference]: Finished difference Result 3311 states and 4718 transitions. [2021-12-15 11:38:21,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-15 11:38:21,269 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 [2021-12-15 11:38:21,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:21,281 INFO L225 Difference]: With dead ends: 3311 [2021-12-15 11:38:21,281 INFO L226 Difference]: Without dead ends: 3027 [2021-12-15 11:38:21,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2021-12-15 11:38:21,284 INFO L933 BasicCegarLoop]: 838 mSDtfsCounter, 5225 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 4247 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5225 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 4283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:21,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5225 Valid, 5175 Invalid, 4283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4247 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-15 11:38:21,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2021-12-15 11:38:21,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 1568. [2021-12-15 11:38:21,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4450942170240415) internal successors, (2224), 1567 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2224 transitions. [2021-12-15 11:38:21,378 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2224 transitions. Word has length 107 [2021-12-15 11:38:21,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:21,378 INFO L470 AbstractCegarLoop]: Abstraction has 1568 states and 2224 transitions. [2021-12-15 11:38:21,379 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) [2021-12-15 11:38:21,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2224 transitions. [2021-12-15 11:38:21,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 11:38:21,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:21,382 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] [2021-12-15 11:38:21,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 11:38:21,383 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)] === [2021-12-15 11:38:21,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:21,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1269156506, now seen corresponding path program 1 times [2021-12-15 11:38:21,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:21,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110679349] [2021-12-15 11:38:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:21,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:21,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:21,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:21,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110679349] [2021-12-15 11:38:21,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110679349] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:21,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:21,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:38:21,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080248660] [2021-12-15 11:38:21,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:21,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:38:21,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:21,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:38:21,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:38:21,553 INFO L87 Difference]: Start difference. First operand 1568 states and 2224 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:23,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:23,819 INFO L93 Difference]: Finished difference Result 2995 states and 4263 transitions. [2021-12-15 11:38:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-15 11:38:23,820 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 [2021-12-15 11:38:23,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:23,828 INFO L225 Difference]: With dead ends: 2995 [2021-12-15 11:38:23,828 INFO L226 Difference]: Without dead ends: 2804 [2021-12-15 11:38:23,830 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 [2021-12-15 11:38:23,830 INFO L933 BasicCegarLoop]: 862 mSDtfsCounter, 8131 mSDsluCounter, 4521 mSDsCounter, 0 mSdLazyCounter, 4701 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8131 SdHoareTripleChecker+Valid, 5383 SdHoareTripleChecker+Invalid, 4819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 4701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:23,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8131 Valid, 5383 Invalid, 4819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 4701 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-15 11:38:23,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2021-12-15 11:38:23,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 1576. [2021-12-15 11:38:23,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4447317388493859) internal successors, (2235), 1575 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2235 transitions. [2021-12-15 11:38:23,939 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2235 transitions. Word has length 107 [2021-12-15 11:38:23,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:23,940 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2235 transitions. [2021-12-15 11:38:23,940 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) [2021-12-15 11:38:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2235 transitions. [2021-12-15 11:38:23,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 11:38:23,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:23,943 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] [2021-12-15 11:38:23,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 11:38:23,944 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)] === [2021-12-15 11:38:23,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:23,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1690715753, now seen corresponding path program 1 times [2021-12-15 11:38:23,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:23,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697519005] [2021-12-15 11:38:23,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:23,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:24,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:24,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:24,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697519005] [2021-12-15 11:38:24,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697519005] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:24,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:24,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:24,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566401419] [2021-12-15 11:38:24,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:24,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:24,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:24,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:24,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:24,100 INFO L87 Difference]: Start difference. First operand 1576 states and 2235 transitions. Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:25,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:25,779 INFO L93 Difference]: Finished difference Result 3048 states and 4370 transitions. [2021-12-15 11:38:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:25,779 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 [2021-12-15 11:38:25,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:25,787 INFO L225 Difference]: With dead ends: 3048 [2021-12-15 11:38:25,787 INFO L226 Difference]: Without dead ends: 2787 [2021-12-15 11:38:25,788 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 [2021-12-15 11:38:25,789 INFO L933 BasicCegarLoop]: 865 mSDtfsCounter, 4347 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 3052 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4347 SdHoareTripleChecker+Valid, 3694 SdHoareTripleChecker+Invalid, 3077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:25,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4347 Valid, 3694 Invalid, 3077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3052 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-15 11:38:25,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2021-12-15 11:38:25,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 1576. [2021-12-15 11:38:25,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4440853264382676) internal successors, (2234), 1575 states have internal predecessors, (2234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:25,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2234 transitions. [2021-12-15 11:38:25,887 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2234 transitions. Word has length 107 [2021-12-15 11:38:25,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:25,887 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2234 transitions. [2021-12-15 11:38:25,888 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) [2021-12-15 11:38:25,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2234 transitions. [2021-12-15 11:38:25,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 11:38:25,891 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:25,891 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] [2021-12-15 11:38:25,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 11:38:25,891 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)] === [2021-12-15 11:38:25,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:25,892 INFO L85 PathProgramCache]: Analyzing trace with hash 64636340, now seen corresponding path program 1 times [2021-12-15 11:38:25,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:25,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254460951] [2021-12-15 11:38:25,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:25,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:26,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:26,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:26,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254460951] [2021-12-15 11:38:26,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254460951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:26,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:26,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 11:38:26,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493072228] [2021-12-15 11:38:26,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:26,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 11:38:26,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:26,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 11:38:26,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-15 11:38:26,050 INFO L87 Difference]: Start difference. First operand 1576 states and 2234 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:27,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:27,901 INFO L93 Difference]: Finished difference Result 2937 states and 4192 transitions. [2021-12-15 11:38:27,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-15 11:38:27,901 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 [2021-12-15 11:38:27,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:27,911 INFO L225 Difference]: With dead ends: 2937 [2021-12-15 11:38:27,911 INFO L226 Difference]: Without dead ends: 2727 [2021-12-15 11:38:27,912 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 [2021-12-15 11:38:27,913 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 8804 mSDsluCounter, 3653 mSDsCounter, 0 mSdLazyCounter, 3759 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8804 SdHoareTripleChecker+Valid, 4522 SdHoareTripleChecker+Invalid, 3916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:27,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8804 Valid, 4522 Invalid, 3916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3759 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-15 11:38:27,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2021-12-15 11:38:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 1576. [2021-12-15 11:38:28,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.442792501616031) internal successors, (2232), 1575 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:28,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2232 transitions. [2021-12-15 11:38:28,011 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2232 transitions. Word has length 107 [2021-12-15 11:38:28,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:28,011 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2232 transitions. [2021-12-15 11:38:28,012 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) [2021-12-15 11:38:28,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2232 transitions. [2021-12-15 11:38:28,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 11:38:28,015 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:28,015 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] [2021-12-15 11:38:28,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 11:38:28,016 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)] === [2021-12-15 11:38:28,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:28,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1233253698, now seen corresponding path program 1 times [2021-12-15 11:38:28,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:28,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338018091] [2021-12-15 11:38:28,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:28,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:28,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:28,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338018091] [2021-12-15 11:38:28,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338018091] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:28,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:28,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 11:38:28,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303779889] [2021-12-15 11:38:28,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:28,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 11:38:28,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:28,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 11:38:28,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-15 11:38:28,183 INFO L87 Difference]: Start difference. First operand 1576 states and 2232 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:29,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:29,999 INFO L93 Difference]: Finished difference Result 3145 states and 4500 transitions. [2021-12-15 11:38:29,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-15 11:38:30,000 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 [2021-12-15 11:38:30,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:30,008 INFO L225 Difference]: With dead ends: 3145 [2021-12-15 11:38:30,008 INFO L226 Difference]: Without dead ends: 2779 [2021-12-15 11:38:30,010 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 [2021-12-15 11:38:30,010 INFO L933 BasicCegarLoop]: 885 mSDtfsCounter, 4415 mSDsluCounter, 3676 mSDsCounter, 0 mSdLazyCounter, 3735 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4415 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 3762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:30,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4415 Valid, 4561 Invalid, 3762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3735 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-15 11:38:30,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2021-12-15 11:38:30,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 1576. [2021-12-15 11:38:30,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4414996767937944) internal successors, (2230), 1575 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:30,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2230 transitions. [2021-12-15 11:38:30,127 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2230 transitions. Word has length 107 [2021-12-15 11:38:30,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:30,128 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2230 transitions. [2021-12-15 11:38:30,128 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) [2021-12-15 11:38:30,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2230 transitions. [2021-12-15 11:38:30,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 11:38:30,131 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:30,131 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] [2021-12-15 11:38:30,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 11:38:30,131 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)] === [2021-12-15 11:38:30,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:30,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1471385960, now seen corresponding path program 1 times [2021-12-15 11:38:30,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:30,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156070004] [2021-12-15 11:38:30,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:30,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:30,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:30,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:30,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156070004] [2021-12-15 11:38:30,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156070004] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:30,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:30,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 11:38:30,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698718310] [2021-12-15 11:38:30,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:30,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 11:38:30,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:30,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 11:38:30,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-15 11:38:30,318 INFO L87 Difference]: Start difference. First operand 1576 states and 2230 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:32,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:32,269 INFO L93 Difference]: Finished difference Result 2937 states and 4188 transitions. [2021-12-15 11:38:32,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-15 11:38:32,269 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 [2021-12-15 11:38:32,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:32,274 INFO L225 Difference]: With dead ends: 2937 [2021-12-15 11:38:32,274 INFO L226 Difference]: Without dead ends: 2727 [2021-12-15 11:38:32,275 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 [2021-12-15 11:38:32,276 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 6350 mSDsluCounter, 4425 mSDsCounter, 0 mSdLazyCounter, 4380 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6350 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 4482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 4380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:32,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6350 Valid, 5294 Invalid, 4482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 4380 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-15 11:38:32,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2021-12-15 11:38:32,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 1576. [2021-12-15 11:38:32,377 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) [2021-12-15 11:38:32,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2228 transitions. [2021-12-15 11:38:32,379 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2228 transitions. Word has length 107 [2021-12-15 11:38:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:32,379 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2228 transitions. [2021-12-15 11:38:32,379 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) [2021-12-15 11:38:32,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2228 transitions. [2021-12-15 11:38:32,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 11:38:32,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:32,382 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] [2021-12-15 11:38:32,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 11:38:32,383 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)] === [2021-12-15 11:38:32,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1678647856, now seen corresponding path program 1 times [2021-12-15 11:38:32,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:32,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423578200] [2021-12-15 11:38:32,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:32,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:32,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:32,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423578200] [2021-12-15 11:38:32,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423578200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:32,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:32,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 11:38:32,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632473790] [2021-12-15 11:38:32,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:32,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 11:38:32,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:32,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 11:38:32,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-15 11:38:32,523 INFO L87 Difference]: Start difference. First operand 1576 states and 2228 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:34,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:34,325 INFO L93 Difference]: Finished difference Result 2941 states and 4190 transitions. [2021-12-15 11:38:34,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-15 11:38:34,325 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 [2021-12-15 11:38:34,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:34,329 INFO L225 Difference]: With dead ends: 2941 [2021-12-15 11:38:34,330 INFO L226 Difference]: Without dead ends: 2727 [2021-12-15 11:38:34,330 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 [2021-12-15 11:38:34,331 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 6459 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 3747 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6459 SdHoareTripleChecker+Valid, 4519 SdHoareTripleChecker+Invalid, 3859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 3747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:34,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6459 Valid, 4519 Invalid, 3859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 3747 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-15 11:38:34,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2021-12-15 11:38:34,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 1576. [2021-12-15 11:38:34,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4389140271493213) internal successors, (2226), 1575 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:34,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2226 transitions. [2021-12-15 11:38:34,433 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2226 transitions. Word has length 107 [2021-12-15 11:38:34,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:34,433 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2226 transitions. [2021-12-15 11:38:34,433 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) [2021-12-15 11:38:34,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2226 transitions. [2021-12-15 11:38:34,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 11:38:34,436 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:34,436 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] [2021-12-15 11:38:34,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 11:38:34,436 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-15 11:38:34,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1318429402, now seen corresponding path program 1 times [2021-12-15 11:38:34,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:34,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927006360] [2021-12-15 11:38:34,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:34,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:34,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:34,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:34,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927006360] [2021-12-15 11:38:34,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927006360] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:34,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:34,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 11:38:34,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96469223] [2021-12-15 11:38:34,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:34,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 11:38:34,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:34,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 11:38:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-15 11:38:34,558 INFO L87 Difference]: Start difference. First operand 1576 states and 2226 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:35,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:35,825 INFO L93 Difference]: Finished difference Result 2695 states and 3682 transitions. [2021-12-15 11:38:35,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 11:38:35,826 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 [2021-12-15 11:38:35,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:35,830 INFO L225 Difference]: With dead ends: 2695 [2021-12-15 11:38:35,830 INFO L226 Difference]: Without dead ends: 2035 [2021-12-15 11:38:35,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-12-15 11:38:35,832 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 7983 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7983 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:35,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7983 Valid, 1602 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-15 11:38:35,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2021-12-15 11:38:35,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 1576. [2021-12-15 11:38:35,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.438267614738203) internal successors, (2225), 1575 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2225 transitions. [2021-12-15 11:38:35,931 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2225 transitions. Word has length 107 [2021-12-15 11:38:35,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:35,931 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2225 transitions. [2021-12-15 11:38:35,931 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) [2021-12-15 11:38:35,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2225 transitions. [2021-12-15 11:38:35,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-15 11:38:35,934 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:35,934 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] [2021-12-15 11:38:35,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 11:38:35,935 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-15 11:38:35,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:35,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1556092728, now seen corresponding path program 1 times [2021-12-15 11:38:35,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:35,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363095215] [2021-12-15 11:38:35,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:35,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:36,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:36,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363095215] [2021-12-15 11:38:36,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363095215] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:36,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:36,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:36,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679993707] [2021-12-15 11:38:36,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:36,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:36,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:36,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:36,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:36,069 INFO L87 Difference]: Start difference. First operand 1576 states and 2225 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:37,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:37,432 INFO L93 Difference]: Finished difference Result 2184 states and 3117 transitions. [2021-12-15 11:38:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:37,432 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 [2021-12-15 11:38:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:37,436 INFO L225 Difference]: With dead ends: 2184 [2021-12-15 11:38:37,436 INFO L226 Difference]: Without dead ends: 1800 [2021-12-15 11:38:37,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:38:37,437 INFO L933 BasicCegarLoop]: 811 mSDtfsCounter, 6414 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 2731 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6414 SdHoareTripleChecker+Valid, 3349 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:37,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6414 Valid, 3349 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2731 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-15 11:38:37,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-12-15 11:38:37,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1543. [2021-12-15 11:38:37,553 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) [2021-12-15 11:38:37,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2177 transitions. [2021-12-15 11:38:37,554 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2177 transitions. Word has length 109 [2021-12-15 11:38:37,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:37,555 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2177 transitions. [2021-12-15 11:38:37,555 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) [2021-12-15 11:38:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2177 transitions. [2021-12-15 11:38:37,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-15 11:38:37,557 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:37,558 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] [2021-12-15 11:38:37,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 11:38:37,558 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-15 11:38:37,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1267119622, now seen corresponding path program 1 times [2021-12-15 11:38:37,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:37,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613743638] [2021-12-15 11:38:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:37,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:37,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:37,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:37,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613743638] [2021-12-15 11:38:37,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613743638] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:37,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:37,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:37,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414218190] [2021-12-15 11:38:37,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:37,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:37,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:37,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:37,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:37,707 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) [2021-12-15 11:38:39,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:39,381 INFO L93 Difference]: Finished difference Result 2889 states and 4109 transitions. [2021-12-15 11:38:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:39,383 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 [2021-12-15 11:38:39,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:39,391 INFO L225 Difference]: With dead ends: 2889 [2021-12-15 11:38:39,391 INFO L226 Difference]: Without dead ends: 2698 [2021-12-15 11:38:39,393 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 [2021-12-15 11:38:39,393 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 4147 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 3116 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 3183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:39,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4147 Valid, 3744 Invalid, 3183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3116 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-15 11:38:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-15 11:38:39,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-15 11:38:39,518 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) [2021-12-15 11:38:39,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2176 transitions. [2021-12-15 11:38:39,520 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2176 transitions. Word has length 109 [2021-12-15 11:38:39,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:39,521 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2176 transitions. [2021-12-15 11:38:39,521 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) [2021-12-15 11:38:39,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2176 transitions. [2021-12-15 11:38:39,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-15 11:38:39,523 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:39,523 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] [2021-12-15 11:38:39,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 11:38:39,524 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-15 11:38:39,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:39,524 INFO L85 PathProgramCache]: Analyzing trace with hash -604463307, now seen corresponding path program 1 times [2021-12-15 11:38:39,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:39,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206178567] [2021-12-15 11:38:39,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:39,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:39,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:39,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206178567] [2021-12-15 11:38:39,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206178567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:39,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:39,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:39,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076785148] [2021-12-15 11:38:39,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:39,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:39,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:39,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:39,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:39,679 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) [2021-12-15 11:38:41,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:41,359 INFO L93 Difference]: Finished difference Result 2883 states and 4102 transitions. [2021-12-15 11:38:41,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:41,360 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 [2021-12-15 11:38:41,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:41,369 INFO L225 Difference]: With dead ends: 2883 [2021-12-15 11:38:41,369 INFO L226 Difference]: Without dead ends: 2698 [2021-12-15 11:38:41,371 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 [2021-12-15 11:38:41,372 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 4142 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 3114 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4142 SdHoareTripleChecker+Valid, 3735 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:41,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4142 Valid, 3735 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3114 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-15 11:38:41,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-15 11:38:41,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-15 11:38:41,494 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) [2021-12-15 11:38:41,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2175 transitions. [2021-12-15 11:38:41,497 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2175 transitions. Word has length 109 [2021-12-15 11:38:41,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:41,497 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2175 transitions. [2021-12-15 11:38:41,497 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) [2021-12-15 11:38:41,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2175 transitions. [2021-12-15 11:38:41,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-15 11:38:41,500 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:41,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:41,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 11:38:41,500 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-15 11:38:41,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:41,501 INFO L85 PathProgramCache]: Analyzing trace with hash 70295, now seen corresponding path program 1 times [2021-12-15 11:38:41,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:41,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676137217] [2021-12-15 11:38:41,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:41,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:41,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:41,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:41,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676137217] [2021-12-15 11:38:41,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676137217] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:41,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:41,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:41,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043151737] [2021-12-15 11:38:41,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:41,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:41,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:41,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:41,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:41,634 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) [2021-12-15 11:38:43,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:43,465 INFO L93 Difference]: Finished difference Result 2889 states and 4106 transitions. [2021-12-15 11:38:43,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:43,465 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 [2021-12-15 11:38:43,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:43,470 INFO L225 Difference]: With dead ends: 2889 [2021-12-15 11:38:43,470 INFO L226 Difference]: Without dead ends: 2698 [2021-12-15 11:38:43,471 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 [2021-12-15 11:38:43,472 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 4078 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 3173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:43,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4078 Valid, 3744 Invalid, 3173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3106 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-15 11:38:43,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-15 11:38:43,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-15 11:38:43,597 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) [2021-12-15 11:38:43,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2174 transitions. [2021-12-15 11:38:43,600 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2174 transitions. Word has length 109 [2021-12-15 11:38:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:43,600 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2174 transitions. [2021-12-15 11:38:43,600 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) [2021-12-15 11:38:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2174 transitions. [2021-12-15 11:38:43,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-15 11:38:43,603 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:43,603 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] [2021-12-15 11:38:43,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 11:38:43,603 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-15 11:38:43,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:43,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1297819743, now seen corresponding path program 1 times [2021-12-15 11:38:43,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:43,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648818880] [2021-12-15 11:38:43,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:43,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:43,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:43,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:43,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648818880] [2021-12-15 11:38:43,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648818880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:43,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:43,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:43,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424863329] [2021-12-15 11:38:43,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:43,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:43,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:43,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:43,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:43,736 INFO L87 Difference]: Start difference. First operand 1543 states and 2174 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:45,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:45,535 INFO L93 Difference]: Finished difference Result 3038 states and 4328 transitions. [2021-12-15 11:38:45,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:45,536 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 [2021-12-15 11:38:45,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:45,539 INFO L225 Difference]: With dead ends: 3038 [2021-12-15 11:38:45,539 INFO L226 Difference]: Without dead ends: 2754 [2021-12-15 11:38:45,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:45,541 INFO L933 BasicCegarLoop]: 1119 mSDtfsCounter, 6063 mSDsluCounter, 3226 mSDsCounter, 0 mSdLazyCounter, 3548 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6063 SdHoareTripleChecker+Valid, 4345 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 3548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:45,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6063 Valid, 4345 Invalid, 3581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 3548 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-15 11:38:45,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-12-15 11:38:45,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1543. [2021-12-15 11:38:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4352708058124175) internal successors, (2173), 1542 states have internal predecessors, (2173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:45,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2173 transitions. [2021-12-15 11:38:45,647 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2173 transitions. Word has length 109 [2021-12-15 11:38:45,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:45,647 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2173 transitions. [2021-12-15 11:38:45,647 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) [2021-12-15 11:38:45,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2173 transitions. [2021-12-15 11:38:45,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-15 11:38:45,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:45,649 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] [2021-12-15 11:38:45,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 11:38:45,649 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-15 11:38:45,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:45,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1406819915, now seen corresponding path program 1 times [2021-12-15 11:38:45,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:45,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581587141] [2021-12-15 11:38:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:45,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:45,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:45,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:45,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581587141] [2021-12-15 11:38:45,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581587141] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:45,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:45,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:45,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743250306] [2021-12-15 11:38:45,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:45,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:45,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:45,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:45,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:45,781 INFO L87 Difference]: Start difference. First operand 1543 states and 2173 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:47,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:47,478 INFO L93 Difference]: Finished difference Result 2732 states and 3836 transitions. [2021-12-15 11:38:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:47,479 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 [2021-12-15 11:38:47,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:47,485 INFO L225 Difference]: With dead ends: 2732 [2021-12-15 11:38:47,485 INFO L226 Difference]: Without dead ends: 2561 [2021-12-15 11:38:47,486 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 [2021-12-15 11:38:47,487 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 5968 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 3052 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5968 SdHoareTripleChecker+Valid, 3376 SdHoareTripleChecker+Invalid, 3419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 3052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:47,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5968 Valid, 3376 Invalid, 3419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 3052 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-15 11:38:47,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-15 11:38:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-15 11:38:47,649 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) [2021-12-15 11:38:47,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2172 transitions. [2021-12-15 11:38:47,652 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2172 transitions. Word has length 109 [2021-12-15 11:38:47,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:47,652 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2172 transitions. [2021-12-15 11:38:47,653 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) [2021-12-15 11:38:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2172 transitions. [2021-12-15 11:38:47,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-15 11:38:47,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:47,655 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] [2021-12-15 11:38:47,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-15 11:38:47,656 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-15 11:38:47,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:47,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1357447050, now seen corresponding path program 1 times [2021-12-15 11:38:47,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:47,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057145878] [2021-12-15 11:38:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:47,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:47,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:47,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057145878] [2021-12-15 11:38:47,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057145878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:47,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:47,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 11:38:47,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710101306] [2021-12-15 11:38:47,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:47,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 11:38:47,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:47,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 11:38:47,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-15 11:38:47,870 INFO L87 Difference]: Start difference. First operand 1543 states and 2172 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:49,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:49,778 INFO L93 Difference]: Finished difference Result 2735 states and 3897 transitions. [2021-12-15 11:38:49,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-15 11:38:49,779 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 [2021-12-15 11:38:49,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:49,783 INFO L225 Difference]: With dead ends: 2735 [2021-12-15 11:38:49,783 INFO L226 Difference]: Without dead ends: 2085 [2021-12-15 11:38:49,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2021-12-15 11:38:49,785 INFO L933 BasicCegarLoop]: 969 mSDtfsCounter, 7108 mSDsluCounter, 3626 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7108 SdHoareTripleChecker+Valid, 4595 SdHoareTripleChecker+Invalid, 3839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:49,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7108 Valid, 4595 Invalid, 3839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3787 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-15 11:38:49,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2021-12-15 11:38:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1543. [2021-12-15 11:38:49,885 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) [2021-12-15 11:38:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2170 transitions. [2021-12-15 11:38:49,888 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2170 transitions. Word has length 109 [2021-12-15 11:38:49,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:49,888 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2170 transitions. [2021-12-15 11:38:49,889 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) [2021-12-15 11:38:49,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2170 transitions. [2021-12-15 11:38:49,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-15 11:38:49,891 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:49,891 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] [2021-12-15 11:38:49,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-15 11:38:49,892 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)] === [2021-12-15 11:38:49,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:49,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1756608252, now seen corresponding path program 1 times [2021-12-15 11:38:49,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:49,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098813809] [2021-12-15 11:38:49,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:49,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:50,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:50,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:50,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098813809] [2021-12-15 11:38:50,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098813809] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:50,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:50,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:50,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543512518] [2021-12-15 11:38:50,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:50,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:50,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:50,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:50,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:50,008 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)