./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 19:03:46,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 19:03:46,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 19:03:46,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 19:03:46,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 19:03:46,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 19:03:46,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 19:03:46,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 19:03:46,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 19:03:46,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 19:03:46,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 19:03:46,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 19:03:46,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 19:03:46,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 19:03:46,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 19:03:46,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 19:03:46,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 19:03:46,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 19:03:46,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 19:03:46,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 19:03:46,454 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 19:03:46,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 19:03:46,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 19:03:46,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 19:03:46,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 19:03:46,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 19:03:46,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 19:03:46,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 19:03:46,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 19:03:46,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 19:03:46,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 19:03:46,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 19:03:46,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 19:03:46,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 19:03:46,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 19:03:46,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 19:03:46,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 19:03:46,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 19:03:46,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 19:03:46,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 19:03:46,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 19:03:46,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 19:03:46,472 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 19:03:46,494 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 19:03:46,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 19:03:46,494 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 19:03:46,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 19:03:46,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 19:03:46,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 19:03:46,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 19:03:46,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 19:03:46,496 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 19:03:46,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 19:03:46,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 19:03:46,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 19:03:46,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 19:03:46,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 19:03:46,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 19:03:46,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 19:03:46,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 19:03:46,498 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 19:03:46,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 19:03:46,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 19:03:46,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 19:03:46,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 19:03:46,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 19:03:46,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 19:03:46,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 19:03:46,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 19:03:46,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 19:03:46,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 19:03:46,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 19:03:46,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 19:03:46,501 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 19:03:46,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 19:03:46,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 19:03:46,502 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 [2022-07-13 19:03:46,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 19:03:46,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 19:03:46,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 19:03:46,677 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 19:03:46,677 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 19:03:46,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-07-13 19:03:46,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0eba5523/0c55942ca82d4c11bfab69c50c9cdc6c/FLAG8a5b2e94c [2022-07-13 19:03:47,225 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 19:03:47,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-07-13 19:03:47,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0eba5523/0c55942ca82d4c11bfab69c50c9cdc6c/FLAG8a5b2e94c [2022-07-13 19:03:47,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0eba5523/0c55942ca82d4c11bfab69c50c9cdc6c [2022-07-13 19:03:47,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 19:03:47,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 19:03:47,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 19:03:47,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 19:03:47,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 19:03:47,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 07:03:47" (1/1) ... [2022-07-13 19:03:47,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42058d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:47, skipping insertion in model container [2022-07-13 19:03:47,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 07:03:47" (1/1) ... [2022-07-13 19:03:47,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 19:03:47,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 19:03:48,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2022-07-13 19:03:48,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2022-07-13 19:03:48,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2022-07-13 19:03:48,262 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2022-07-13 19:03:48,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2022-07-13 19:03:48,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2022-07-13 19:03:48,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2022-07-13 19:03:48,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2022-07-13 19:03:48,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2022-07-13 19:03:48,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2022-07-13 19:03:48,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2022-07-13 19:03:48,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2022-07-13 19:03:48,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2022-07-13 19:03:48,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2022-07-13 19:03:48,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2022-07-13 19:03:48,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2022-07-13 19:03:48,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 19:03:48,481 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 19:03:48,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2022-07-13 19:03:48,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2022-07-13 19:03:48,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2022-07-13 19:03:48,609 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2022-07-13 19:03:48,613 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2022-07-13 19:03:48,633 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2022-07-13 19:03:48,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2022-07-13 19:03:48,649 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2022-07-13 19:03:48,655 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2022-07-13 19:03:48,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2022-07-13 19:03:48,675 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2022-07-13 19:03:48,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2022-07-13 19:03:48,685 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2022-07-13 19:03:48,692 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2022-07-13 19:03:48,697 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2022-07-13 19:03:48,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2022-07-13 19:03:48,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 19:03:48,733 INFO L208 MainTranslator]: Completed translation [2022-07-13 19:03:48,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48 WrapperNode [2022-07-13 19:03:48,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 19:03:48,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 19:03:48,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 19:03:48,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 19:03:48,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (1/1) ... [2022-07-13 19:03:48,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (1/1) ... [2022-07-13 19:03:48,843 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5834 [2022-07-13 19:03:48,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 19:03:48,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 19:03:48,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 19:03:48,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 19:03:48,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (1/1) ... [2022-07-13 19:03:48,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (1/1) ... [2022-07-13 19:03:48,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (1/1) ... [2022-07-13 19:03:48,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (1/1) ... [2022-07-13 19:03:48,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (1/1) ... [2022-07-13 19:03:48,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (1/1) ... [2022-07-13 19:03:48,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (1/1) ... [2022-07-13 19:03:49,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 19:03:49,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 19:03:49,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 19:03:49,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 19:03:49,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (1/1) ... [2022-07-13 19:03:49,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 19:03:49,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 19:03:49,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 19:03:49,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 19:03:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 19:03:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 19:03:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 19:03:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 19:03:49,338 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 19:03:49,339 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 19:03:51,111 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 19:03:51,122 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 19:03:51,123 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 19:03:51,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 07:03:51 BoogieIcfgContainer [2022-07-13 19:03:51,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 19:03:51,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 19:03:51,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 19:03:51,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 19:03:51,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 07:03:47" (1/3) ... [2022-07-13 19:03:51,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f50441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 07:03:51, skipping insertion in model container [2022-07-13 19:03:51,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:03:48" (2/3) ... [2022-07-13 19:03:51,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f50441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 07:03:51, skipping insertion in model container [2022-07-13 19:03:51,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 07:03:51" (3/3) ... [2022-07-13 19:03:51,130 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-07-13 19:03:51,139 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 19:03:51,139 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-07-13 19:03:51,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 19:03:51,188 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4bbeea9e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b2d543a [2022-07-13 19:03:51,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-07-13 19:03:51,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 1193 states, 1176 states have (on average 1.7704081632653061) internal successors, (2082), 1192 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:51,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-13 19:03:51,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:51,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:51,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:51,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:51,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1494001524, now seen corresponding path program 1 times [2022-07-13 19:03:51,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:51,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533222033] [2022-07-13 19:03:51,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:51,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:51,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:51,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:51,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533222033] [2022-07-13 19:03:51,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533222033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:51,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:51,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:03:51,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753317864] [2022-07-13 19:03:51,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:51,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:03:51,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:51,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:03:51,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:03:51,646 INFO L87 Difference]: Start difference. First operand has 1193 states, 1176 states have (on average 1.7704081632653061) internal successors, (2082), 1192 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:52,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:52,329 INFO L93 Difference]: Finished difference Result 1556 states and 2660 transitions. [2022-07-13 19:03:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:03:52,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-13 19:03:52,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:52,342 INFO L225 Difference]: With dead ends: 1556 [2022-07-13 19:03:52,342 INFO L226 Difference]: Without dead ends: 945 [2022-07-13 19:03:52,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:03:52,348 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 4717 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4717 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:52,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4717 Valid, 931 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:03:52,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-07-13 19:03:52,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 945. [2022-07-13 19:03:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 929 states have (on average 1.2927879440258343) internal successors, (1201), 944 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:52,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1201 transitions. [2022-07-13 19:03:52,475 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1201 transitions. Word has length 73 [2022-07-13 19:03:52,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:52,475 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1201 transitions. [2022-07-13 19:03:52,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:52,476 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1201 transitions. [2022-07-13 19:03:52,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-13 19:03:52,478 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:52,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:52,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 19:03:52,478 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -2060458333, now seen corresponding path program 1 times [2022-07-13 19:03:52,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:52,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997129222] [2022-07-13 19:03:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:52,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:52,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:52,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997129222] [2022-07-13 19:03:52,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997129222] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:52,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:52,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:03:52,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17628326] [2022-07-13 19:03:52,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:52,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:03:52,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:52,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:03:52,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:03:52,611 INFO L87 Difference]: Start difference. First operand 945 states and 1201 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:53,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:53,096 INFO L93 Difference]: Finished difference Result 1347 states and 1726 transitions. [2022-07-13 19:03:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:03:53,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-13 19:03:53,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:53,100 INFO L225 Difference]: With dead ends: 1347 [2022-07-13 19:03:53,100 INFO L226 Difference]: Without dead ends: 881 [2022-07-13 19:03:53,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:03:53,102 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 3247 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3247 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:53,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3247 Valid, 563 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:03:53,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-07-13 19:03:53,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2022-07-13 19:03:53,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 865 states have (on average 1.3040462427745665) internal successors, (1128), 880 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1128 transitions. [2022-07-13 19:03:53,139 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1128 transitions. Word has length 73 [2022-07-13 19:03:53,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:53,140 INFO L495 AbstractCegarLoop]: Abstraction has 881 states and 1128 transitions. [2022-07-13 19:03:53,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:53,140 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1128 transitions. [2022-07-13 19:03:53,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-13 19:03:53,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:53,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:53,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 19:03:53,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:53,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:53,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1618618520, now seen corresponding path program 1 times [2022-07-13 19:03:53,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:53,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60655793] [2022-07-13 19:03:53,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:53,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:53,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:53,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:53,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60655793] [2022-07-13 19:03:53,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60655793] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:53,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:53,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:03:53,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006881283] [2022-07-13 19:03:53,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:53,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:03:53,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:53,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:03:53,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:03:53,239 INFO L87 Difference]: Start difference. First operand 881 states and 1128 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:53,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:53,531 INFO L93 Difference]: Finished difference Result 1019 states and 1292 transitions. [2022-07-13 19:03:53,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:03:53,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-13 19:03:53,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:53,534 INFO L225 Difference]: With dead ends: 1019 [2022-07-13 19:03:53,535 INFO L226 Difference]: Without dead ends: 585 [2022-07-13 19:03:53,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:03:53,537 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 2127 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:53,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 417 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:03:53,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-07-13 19:03:53,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2022-07-13 19:03:53,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 569 states have (on average 1.3057996485061512) internal successors, (743), 584 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:53,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 743 transitions. [2022-07-13 19:03:53,563 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 743 transitions. Word has length 73 [2022-07-13 19:03:53,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:53,563 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 743 transitions. [2022-07-13 19:03:53,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:53,566 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 743 transitions. [2022-07-13 19:03:53,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-13 19:03:53,568 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:53,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:53,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 19:03:53,568 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:53,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:53,570 INFO L85 PathProgramCache]: Analyzing trace with hash -700009990, now seen corresponding path program 1 times [2022-07-13 19:03:53,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:53,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903147283] [2022-07-13 19:03:53,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:53,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:53,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:53,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:53,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903147283] [2022-07-13 19:03:53,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903147283] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:53,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:53,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:03:53,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503291805] [2022-07-13 19:03:53,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:53,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:03:53,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:53,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:03:53,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:03:53,671 INFO L87 Difference]: Start difference. First operand 585 states and 743 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:53,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:53,897 INFO L93 Difference]: Finished difference Result 807 states and 1026 transitions. [2022-07-13 19:03:53,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:03:53,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-13 19:03:53,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:53,900 INFO L225 Difference]: With dead ends: 807 [2022-07-13 19:03:53,900 INFO L226 Difference]: Without dead ends: 500 [2022-07-13 19:03:53,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:03:53,902 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 1841 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:53,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 368 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:03:53,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-07-13 19:03:53,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2022-07-13 19:03:53,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 484 states have (on average 1.3161157024793388) internal successors, (637), 499 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 637 transitions. [2022-07-13 19:03:53,930 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 637 transitions. Word has length 75 [2022-07-13 19:03:53,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:53,931 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 637 transitions. [2022-07-13 19:03:53,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:53,932 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 637 transitions. [2022-07-13 19:03:53,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-13 19:03:53,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:53,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:53,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 19:03:53,933 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:53,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:53,934 INFO L85 PathProgramCache]: Analyzing trace with hash 137435073, now seen corresponding path program 1 times [2022-07-13 19:03:53,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:53,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329326515] [2022-07-13 19:03:53,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:53,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:54,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:54,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329326515] [2022-07-13 19:03:54,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329326515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:54,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:54,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:03:54,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409610792] [2022-07-13 19:03:54,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:54,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:03:54,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:54,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:03:54,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:03:54,027 INFO L87 Difference]: Start difference. First operand 500 states and 637 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:54,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:54,212 INFO L93 Difference]: Finished difference Result 686 states and 871 transitions. [2022-07-13 19:03:54,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:03:54,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-13 19:03:54,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:54,214 INFO L225 Difference]: With dead ends: 686 [2022-07-13 19:03:54,215 INFO L226 Difference]: Without dead ends: 423 [2022-07-13 19:03:54,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:03:54,216 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 1530 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:54,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 334 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:03:54,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-07-13 19:03:54,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2022-07-13 19:03:54,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3194103194103195) internal successors, (537), 422 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:54,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 537 transitions. [2022-07-13 19:03:54,241 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 537 transitions. Word has length 77 [2022-07-13 19:03:54,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:54,241 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 537 transitions. [2022-07-13 19:03:54,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:54,241 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 537 transitions. [2022-07-13 19:03:54,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-13 19:03:54,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:54,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:54,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 19:03:54,245 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:54,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:54,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1748744325, now seen corresponding path program 1 times [2022-07-13 19:03:54,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:54,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078099302] [2022-07-13 19:03:54,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:54,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:54,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:54,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078099302] [2022-07-13 19:03:54,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078099302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:54,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:54,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 19:03:54,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27656266] [2022-07-13 19:03:54,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:54,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 19:03:54,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:54,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 19:03:54,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:03:54,391 INFO L87 Difference]: Start difference. First operand 423 states and 537 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:55,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:55,031 INFO L93 Difference]: Finished difference Result 935 states and 1225 transitions. [2022-07-13 19:03:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 19:03:55,032 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-13 19:03:55,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:55,035 INFO L225 Difference]: With dead ends: 935 [2022-07-13 19:03:55,035 INFO L226 Difference]: Without dead ends: 783 [2022-07-13 19:03:55,036 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:03:55,037 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 2111 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:55,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2111 Valid, 1791 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:03:55,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2022-07-13 19:03:55,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 423. [2022-07-13 19:03:55,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.316953316953317) internal successors, (536), 422 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 536 transitions. [2022-07-13 19:03:55,062 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 536 transitions. Word has length 79 [2022-07-13 19:03:55,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:55,063 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 536 transitions. [2022-07-13 19:03:55,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:55,064 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 536 transitions. [2022-07-13 19:03:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-13 19:03:55,066 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:55,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:55,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 19:03:55,066 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:55,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:55,067 INFO L85 PathProgramCache]: Analyzing trace with hash -945208837, now seen corresponding path program 1 times [2022-07-13 19:03:55,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:55,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043021065] [2022-07-13 19:03:55,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:55,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:55,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:55,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:55,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043021065] [2022-07-13 19:03:55,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043021065] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:55,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:55,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:03:55,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492518561] [2022-07-13 19:03:55,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:55,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 19:03:55,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:55,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 19:03:55,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 19:03:55,210 INFO L87 Difference]: Start difference. First operand 423 states and 536 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:55,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:55,757 INFO L93 Difference]: Finished difference Result 821 states and 1024 transitions. [2022-07-13 19:03:55,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 19:03:55,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-13 19:03:55,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:55,759 INFO L225 Difference]: With dead ends: 821 [2022-07-13 19:03:55,760 INFO L226 Difference]: Without dead ends: 592 [2022-07-13 19:03:55,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-13 19:03:55,761 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 2818 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:55,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2818 Valid, 1030 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:03:55,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-07-13 19:03:55,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 423. [2022-07-13 19:03:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3144963144963144) internal successors, (535), 422 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:55,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 535 transitions. [2022-07-13 19:03:55,786 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 535 transitions. Word has length 79 [2022-07-13 19:03:55,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:55,786 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 535 transitions. [2022-07-13 19:03:55,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:55,787 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 535 transitions. [2022-07-13 19:03:55,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-13 19:03:55,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:55,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:55,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 19:03:55,788 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:55,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash -883245509, now seen corresponding path program 1 times [2022-07-13 19:03:55,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:55,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010401792] [2022-07-13 19:03:55,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:55,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:55,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:55,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:55,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010401792] [2022-07-13 19:03:55,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010401792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:55,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:55,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:03:55,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915696987] [2022-07-13 19:03:55,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:55,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:03:55,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:55,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:03:55,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:03:55,888 INFO L87 Difference]: Start difference. First operand 423 states and 535 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:56,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:56,626 INFO L93 Difference]: Finished difference Result 877 states and 1155 transitions. [2022-07-13 19:03:56,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:03:56,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-13 19:03:56,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:56,628 INFO L225 Difference]: With dead ends: 877 [2022-07-13 19:03:56,628 INFO L226 Difference]: Without dead ends: 783 [2022-07-13 19:03:56,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 19:03:56,629 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 3015 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3015 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:56,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3015 Valid, 1795 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:03:56,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2022-07-13 19:03:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 423. [2022-07-13 19:03:56,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3120393120393121) internal successors, (534), 422 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:56,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 534 transitions. [2022-07-13 19:03:56,657 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 534 transitions. Word has length 79 [2022-07-13 19:03:56,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:56,657 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 534 transitions. [2022-07-13 19:03:56,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:56,657 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 534 transitions. [2022-07-13 19:03:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-13 19:03:56,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:56,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:56,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 19:03:56,659 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:56,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:56,659 INFO L85 PathProgramCache]: Analyzing trace with hash -876086789, now seen corresponding path program 1 times [2022-07-13 19:03:56,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:56,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736100688] [2022-07-13 19:03:56,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:56,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:56,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:56,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736100688] [2022-07-13 19:03:56,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736100688] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:56,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:56,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:03:56,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345251135] [2022-07-13 19:03:56,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:56,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:03:56,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:56,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:03:56,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:03:56,736 INFO L87 Difference]: Start difference. First operand 423 states and 534 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:57,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:57,373 INFO L93 Difference]: Finished difference Result 924 states and 1212 transitions. [2022-07-13 19:03:57,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:03:57,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-13 19:03:57,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:57,376 INFO L225 Difference]: With dead ends: 924 [2022-07-13 19:03:57,377 INFO L226 Difference]: Without dead ends: 787 [2022-07-13 19:03:57,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:03:57,378 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 3063 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3063 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:57,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3063 Valid, 1874 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:03:57,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-07-13 19:03:57,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 423. [2022-07-13 19:03:57,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3095823095823096) internal successors, (533), 422 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 533 transitions. [2022-07-13 19:03:57,411 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 533 transitions. Word has length 79 [2022-07-13 19:03:57,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:57,412 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 533 transitions. [2022-07-13 19:03:57,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:57,412 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 533 transitions. [2022-07-13 19:03:57,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-13 19:03:57,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:57,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:57,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 19:03:57,414 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:57,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:57,415 INFO L85 PathProgramCache]: Analyzing trace with hash -178984548, now seen corresponding path program 1 times [2022-07-13 19:03:57,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:57,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771297607] [2022-07-13 19:03:57,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:57,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:57,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:57,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:57,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771297607] [2022-07-13 19:03:57,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771297607] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:57,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:57,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:03:57,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820779589] [2022-07-13 19:03:57,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:57,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:03:57,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:57,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:03:57,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:03:57,552 INFO L87 Difference]: Start difference. First operand 423 states and 533 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:58,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:58,167 INFO L93 Difference]: Finished difference Result 827 states and 1074 transitions. [2022-07-13 19:03:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:03:58,167 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-13 19:03:58,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:58,169 INFO L225 Difference]: With dead ends: 827 [2022-07-13 19:03:58,169 INFO L226 Difference]: Without dead ends: 759 [2022-07-13 19:03:58,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:03:58,170 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 3083 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3083 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:58,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3083 Valid, 1489 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:03:58,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2022-07-13 19:03:58,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 423. [2022-07-13 19:03:58,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.307125307125307) internal successors, (532), 422 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:58,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 532 transitions. [2022-07-13 19:03:58,203 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 532 transitions. Word has length 80 [2022-07-13 19:03:58,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:58,203 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 532 transitions. [2022-07-13 19:03:58,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:58,203 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 532 transitions. [2022-07-13 19:03:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-13 19:03:58,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:58,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:58,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 19:03:58,205 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:58,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:58,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1996016320, now seen corresponding path program 1 times [2022-07-13 19:03:58,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:58,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398088921] [2022-07-13 19:03:58,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:58,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:58,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:58,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:58,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398088921] [2022-07-13 19:03:58,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398088921] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:58,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:58,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:03:58,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727558385] [2022-07-13 19:03:58,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:58,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:03:58,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:58,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:03:58,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:03:58,302 INFO L87 Difference]: Start difference. First operand 423 states and 532 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:58,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:58,902 INFO L93 Difference]: Finished difference Result 765 states and 979 transitions. [2022-07-13 19:03:58,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:03:58,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-13 19:03:58,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:58,905 INFO L225 Difference]: With dead ends: 765 [2022-07-13 19:03:58,905 INFO L226 Difference]: Without dead ends: 759 [2022-07-13 19:03:58,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:03:58,906 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 1597 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:58,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 1501 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:03:58,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2022-07-13 19:03:58,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 423. [2022-07-13 19:03:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3046683046683047) internal successors, (531), 422 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:58,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 531 transitions. [2022-07-13 19:03:58,943 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 531 transitions. Word has length 81 [2022-07-13 19:03:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:58,943 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 531 transitions. [2022-07-13 19:03:58,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:58,943 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 531 transitions. [2022-07-13 19:03:58,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-13 19:03:58,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:58,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:58,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 19:03:58,944 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:58,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:58,945 INFO L85 PathProgramCache]: Analyzing trace with hash -468566400, now seen corresponding path program 1 times [2022-07-13 19:03:58,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:58,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865895822] [2022-07-13 19:03:58,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:58,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:03:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:03:59,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:03:59,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865895822] [2022-07-13 19:03:59,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865895822] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:03:59,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:03:59,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:03:59,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440374108] [2022-07-13 19:03:59,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:03:59,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:03:59,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:03:59,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:03:59,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:03:59,053 INFO L87 Difference]: Start difference. First operand 423 states and 531 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:59,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:03:59,868 INFO L93 Difference]: Finished difference Result 886 states and 1157 transitions. [2022-07-13 19:03:59,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:03:59,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-13 19:03:59,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:03:59,871 INFO L225 Difference]: With dead ends: 886 [2022-07-13 19:03:59,871 INFO L226 Difference]: Without dead ends: 783 [2022-07-13 19:03:59,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 19:03:59,872 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 2435 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2435 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:03:59,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2435 Valid, 2214 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:03:59,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2022-07-13 19:03:59,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 423. [2022-07-13 19:03:59,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3022113022113022) internal successors, (530), 422 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:59,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 530 transitions. [2022-07-13 19:03:59,955 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 530 transitions. Word has length 81 [2022-07-13 19:03:59,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:03:59,955 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 530 transitions. [2022-07-13 19:03:59,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:03:59,956 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 530 transitions. [2022-07-13 19:03:59,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-13 19:03:59,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:03:59,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:03:59,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 19:03:59,957 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:03:59,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:03:59,957 INFO L85 PathProgramCache]: Analyzing trace with hash -583258688, now seen corresponding path program 1 times [2022-07-13 19:03:59,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:03:59,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664959472] [2022-07-13 19:03:59,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:03:59,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:03:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:00,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:00,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:00,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664959472] [2022-07-13 19:04:00,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664959472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:00,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:00,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:00,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227566304] [2022-07-13 19:04:00,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:00,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:00,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:00,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:00,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:00,071 INFO L87 Difference]: Start difference. First operand 423 states and 530 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:00,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:00,520 INFO L93 Difference]: Finished difference Result 765 states and 977 transitions. [2022-07-13 19:04:00,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:00,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-13 19:04:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:00,522 INFO L225 Difference]: With dead ends: 765 [2022-07-13 19:04:00,533 INFO L226 Difference]: Without dead ends: 759 [2022-07-13 19:04:00,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:00,535 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 1878 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:00,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 1494 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 19:04:00,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2022-07-13 19:04:00,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 423. [2022-07-13 19:04:00,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.2997542997542997) internal successors, (529), 422 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:00,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 529 transitions. [2022-07-13 19:04:00,607 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 529 transitions. Word has length 81 [2022-07-13 19:04:00,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:00,607 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 529 transitions. [2022-07-13 19:04:00,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:00,608 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 529 transitions. [2022-07-13 19:04:00,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-13 19:04:00,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:00,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:00,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 19:04:00,609 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:00,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:00,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1694349184, now seen corresponding path program 1 times [2022-07-13 19:04:00,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:00,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211410085] [2022-07-13 19:04:00,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:00,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:00,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:00,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:00,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211410085] [2022-07-13 19:04:00,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211410085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:00,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:00,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:00,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438595438] [2022-07-13 19:04:00,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:00,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:00,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:00,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:00,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:00,707 INFO L87 Difference]: Start difference. First operand 423 states and 529 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:01,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:01,357 INFO L93 Difference]: Finished difference Result 830 states and 1071 transitions. [2022-07-13 19:04:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:01,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-13 19:04:01,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:01,360 INFO L225 Difference]: With dead ends: 830 [2022-07-13 19:04:01,360 INFO L226 Difference]: Without dead ends: 759 [2022-07-13 19:04:01,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:01,361 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 2314 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2314 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:01,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2314 Valid, 1497 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:04:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2022-07-13 19:04:01,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 423. [2022-07-13 19:04:01,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.2972972972972974) internal successors, (528), 422 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:01,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 528 transitions. [2022-07-13 19:04:01,397 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 528 transitions. Word has length 81 [2022-07-13 19:04:01,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:01,398 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 528 transitions. [2022-07-13 19:04:01,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:01,398 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 528 transitions. [2022-07-13 19:04:01,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-13 19:04:01,399 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:01,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:01,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 19:04:01,399 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:01,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:01,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1372385248, now seen corresponding path program 1 times [2022-07-13 19:04:01,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:01,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290450380] [2022-07-13 19:04:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:01,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:01,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:01,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290450380] [2022-07-13 19:04:01,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290450380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:01,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:01,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:01,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707187190] [2022-07-13 19:04:01,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:01,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:01,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:01,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:01,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:01,476 INFO L87 Difference]: Start difference. First operand 423 states and 528 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:02,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:02,289 INFO L93 Difference]: Finished difference Result 886 states and 1156 transitions. [2022-07-13 19:04:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:02,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-13 19:04:02,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:02,292 INFO L225 Difference]: With dead ends: 886 [2022-07-13 19:04:02,292 INFO L226 Difference]: Without dead ends: 783 [2022-07-13 19:04:02,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:02,295 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 1451 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:02,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 2096 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:04:02,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2022-07-13 19:04:02,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 423. [2022-07-13 19:04:02,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.2948402948402948) internal successors, (527), 422 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 527 transitions. [2022-07-13 19:04:02,338 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 527 transitions. Word has length 81 [2022-07-13 19:04:02,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:02,340 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 527 transitions. [2022-07-13 19:04:02,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:02,340 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 527 transitions. [2022-07-13 19:04:02,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-13 19:04:02,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:02,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:02,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 19:04:02,342 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:02,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:02,342 INFO L85 PathProgramCache]: Analyzing trace with hash 845637120, now seen corresponding path program 1 times [2022-07-13 19:04:02,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:02,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641934591] [2022-07-13 19:04:02,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:02,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:02,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:02,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641934591] [2022-07-13 19:04:02,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641934591] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:02,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:02,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:02,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366870174] [2022-07-13 19:04:02,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:02,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:02,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:02,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:02,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:02,454 INFO L87 Difference]: Start difference. First operand 423 states and 527 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:03,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:03,179 INFO L93 Difference]: Finished difference Result 765 states and 972 transitions. [2022-07-13 19:04:03,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:03,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-13 19:04:03,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:03,182 INFO L225 Difference]: With dead ends: 765 [2022-07-13 19:04:03,182 INFO L226 Difference]: Without dead ends: 759 [2022-07-13 19:04:03,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:03,184 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 1594 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:03,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 1498 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:04:03,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2022-07-13 19:04:03,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 423. [2022-07-13 19:04:03,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.2923832923832923) internal successors, (526), 422 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:03,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 526 transitions. [2022-07-13 19:04:03,224 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 526 transitions. Word has length 81 [2022-07-13 19:04:03,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:03,225 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 526 transitions. [2022-07-13 19:04:03,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:03,225 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 526 transitions. [2022-07-13 19:04:03,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-13 19:04:03,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:03,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:03,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 19:04:03,226 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:03,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:03,227 INFO L85 PathProgramCache]: Analyzing trace with hash 962867702, now seen corresponding path program 1 times [2022-07-13 19:04:03,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:03,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579033462] [2022-07-13 19:04:03,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:03,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:03,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:03,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579033462] [2022-07-13 19:04:03,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579033462] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:03,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:03,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:03,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662302409] [2022-07-13 19:04:03,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:03,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:03,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:03,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:03,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:03,344 INFO L87 Difference]: Start difference. First operand 423 states and 526 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:04,210 INFO L93 Difference]: Finished difference Result 824 states and 1060 transitions. [2022-07-13 19:04:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:04,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-13 19:04:04,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:04,216 INFO L225 Difference]: With dead ends: 824 [2022-07-13 19:04:04,216 INFO L226 Difference]: Without dead ends: 758 [2022-07-13 19:04:04,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:04,217 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 2541 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2541 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:04,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2541 Valid, 1939 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:04:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-07-13 19:04:04,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 422. [2022-07-13 19:04:04,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.29064039408867) internal successors, (524), 421 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:04,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 524 transitions. [2022-07-13 19:04:04,258 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 524 transitions. Word has length 81 [2022-07-13 19:04:04,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:04,259 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 524 transitions. [2022-07-13 19:04:04,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:04,259 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 524 transitions. [2022-07-13 19:04:04,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 19:04:04,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:04,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:04,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 19:04:04,260 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:04,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:04,261 INFO L85 PathProgramCache]: Analyzing trace with hash 547042711, now seen corresponding path program 1 times [2022-07-13 19:04:04,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:04,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300016481] [2022-07-13 19:04:04,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:04,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:04,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:04,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300016481] [2022-07-13 19:04:04,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300016481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:04,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:04,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:04,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336709233] [2022-07-13 19:04:04,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:04,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:04,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:04,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:04,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:04,333 INFO L87 Difference]: Start difference. First operand 422 states and 524 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:04,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:04,874 INFO L93 Difference]: Finished difference Result 826 states and 1061 transitions. [2022-07-13 19:04:04,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:04,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-13 19:04:04,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:04,877 INFO L225 Difference]: With dead ends: 826 [2022-07-13 19:04:04,877 INFO L226 Difference]: Without dead ends: 758 [2022-07-13 19:04:04,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:04,878 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 2281 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:04,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2281 Valid, 1504 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 19:04:04,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-07-13 19:04:04,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 422. [2022-07-13 19:04:04,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2881773399014778) internal successors, (523), 421 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 523 transitions. [2022-07-13 19:04:04,953 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 523 transitions. Word has length 82 [2022-07-13 19:04:04,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:04,954 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 523 transitions. [2022-07-13 19:04:04,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:04,954 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 523 transitions. [2022-07-13 19:04:04,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 19:04:04,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:04,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:04,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 19:04:04,955 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1303505865, now seen corresponding path program 1 times [2022-07-13 19:04:04,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:04,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089121745] [2022-07-13 19:04:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:04,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:05,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:05,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:05,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089121745] [2022-07-13 19:04:05,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089121745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:05,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:05,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:05,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120825334] [2022-07-13 19:04:05,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:05,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:05,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:05,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:05,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:05,055 INFO L87 Difference]: Start difference. First operand 422 states and 523 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:05,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:05,832 INFO L93 Difference]: Finished difference Result 853 states and 1102 transitions. [2022-07-13 19:04:05,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:05,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-13 19:04:05,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:05,835 INFO L225 Difference]: With dead ends: 853 [2022-07-13 19:04:05,835 INFO L226 Difference]: Without dead ends: 774 [2022-07-13 19:04:05,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:05,836 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1946 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:05,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 2107 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:04:05,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-07-13 19:04:05,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 422. [2022-07-13 19:04:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2857142857142858) internal successors, (522), 421 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:05,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 522 transitions. [2022-07-13 19:04:05,884 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 522 transitions. Word has length 82 [2022-07-13 19:04:05,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:05,885 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 522 transitions. [2022-07-13 19:04:05,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:05,885 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 522 transitions. [2022-07-13 19:04:05,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 19:04:05,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:05,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:05,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 19:04:05,887 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:05,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:05,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1592889193, now seen corresponding path program 1 times [2022-07-13 19:04:05,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:05,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301564323] [2022-07-13 19:04:05,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:05,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:05,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:05,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301564323] [2022-07-13 19:04:05,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301564323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:05,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:05,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:05,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296115725] [2022-07-13 19:04:05,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:05,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:05,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:05,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:05,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:06,000 INFO L87 Difference]: Start difference. First operand 422 states and 522 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:06,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:06,752 INFO L93 Difference]: Finished difference Result 826 states and 1059 transitions. [2022-07-13 19:04:06,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:06,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-13 19:04:06,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:06,754 INFO L225 Difference]: With dead ends: 826 [2022-07-13 19:04:06,755 INFO L226 Difference]: Without dead ends: 758 [2022-07-13 19:04:06,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:06,755 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 2508 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2508 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:06,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2508 Valid, 1977 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:04:06,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-07-13 19:04:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 422. [2022-07-13 19:04:06,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2832512315270936) internal successors, (521), 421 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:06,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 521 transitions. [2022-07-13 19:04:06,803 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 521 transitions. Word has length 82 [2022-07-13 19:04:06,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:06,803 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 521 transitions. [2022-07-13 19:04:06,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 521 transitions. [2022-07-13 19:04:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 19:04:06,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:06,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:06,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 19:04:06,805 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:06,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:06,805 INFO L85 PathProgramCache]: Analyzing trace with hash 585444599, now seen corresponding path program 1 times [2022-07-13 19:04:06,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:06,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293507958] [2022-07-13 19:04:06,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:06,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:06,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:06,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:06,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293507958] [2022-07-13 19:04:06,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293507958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:06,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:06,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:06,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953600510] [2022-07-13 19:04:06,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:06,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:06,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:06,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:06,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:06,897 INFO L87 Difference]: Start difference. First operand 422 states and 521 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:07,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:07,615 INFO L93 Difference]: Finished difference Result 853 states and 1101 transitions. [2022-07-13 19:04:07,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:07,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-13 19:04:07,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:07,618 INFO L225 Difference]: With dead ends: 853 [2022-07-13 19:04:07,618 INFO L226 Difference]: Without dead ends: 774 [2022-07-13 19:04:07,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:07,619 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 2351 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:07,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 2063 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:04:07,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-07-13 19:04:07,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 422. [2022-07-13 19:04:07,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2807881773399015) internal successors, (520), 421 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:07,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 520 transitions. [2022-07-13 19:04:07,668 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 520 transitions. Word has length 82 [2022-07-13 19:04:07,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:07,669 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 520 transitions. [2022-07-13 19:04:07,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:07,669 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 520 transitions. [2022-07-13 19:04:07,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 19:04:07,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:07,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:07,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 19:04:07,670 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:07,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:07,671 INFO L85 PathProgramCache]: Analyzing trace with hash 906756407, now seen corresponding path program 1 times [2022-07-13 19:04:07,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:07,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211928101] [2022-07-13 19:04:07,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:07,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:07,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:07,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211928101] [2022-07-13 19:04:07,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211928101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:07,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:07,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:07,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37468663] [2022-07-13 19:04:07,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:07,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:07,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:07,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:07,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:07,751 INFO L87 Difference]: Start difference. First operand 422 states and 520 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:08,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:08,443 INFO L93 Difference]: Finished difference Result 826 states and 1057 transitions. [2022-07-13 19:04:08,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:08,445 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-13 19:04:08,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:08,447 INFO L225 Difference]: With dead ends: 826 [2022-07-13 19:04:08,447 INFO L226 Difference]: Without dead ends: 758 [2022-07-13 19:04:08,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:08,461 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 2482 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2482 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:08,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2482 Valid, 2024 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:04:08,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-07-13 19:04:08,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 422. [2022-07-13 19:04:08,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2783251231527093) internal successors, (519), 421 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:08,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 519 transitions. [2022-07-13 19:04:08,512 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 519 transitions. Word has length 82 [2022-07-13 19:04:08,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:08,512 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 519 transitions. [2022-07-13 19:04:08,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:08,512 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 519 transitions. [2022-07-13 19:04:08,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 19:04:08,513 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:08,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:08,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 19:04:08,513 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:08,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:08,514 INFO L85 PathProgramCache]: Analyzing trace with hash 46351895, now seen corresponding path program 1 times [2022-07-13 19:04:08,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:08,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695657703] [2022-07-13 19:04:08,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:08,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:08,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:08,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695657703] [2022-07-13 19:04:08,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695657703] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:08,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:08,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:08,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918123627] [2022-07-13 19:04:08,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:08,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:08,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:08,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:08,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:08,597 INFO L87 Difference]: Start difference. First operand 422 states and 519 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:09,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:09,247 INFO L93 Difference]: Finished difference Result 853 states and 1097 transitions. [2022-07-13 19:04:09,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:09,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-13 19:04:09,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:09,250 INFO L225 Difference]: With dead ends: 853 [2022-07-13 19:04:09,250 INFO L226 Difference]: Without dead ends: 774 [2022-07-13 19:04:09,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:09,251 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1882 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:09,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1882 Valid, 2229 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:04:09,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-07-13 19:04:09,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 422. [2022-07-13 19:04:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2758620689655173) internal successors, (518), 421 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:09,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 518 transitions. [2022-07-13 19:04:09,308 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 518 transitions. Word has length 82 [2022-07-13 19:04:09,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:09,308 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 518 transitions. [2022-07-13 19:04:09,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:09,308 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 518 transitions. [2022-07-13 19:04:09,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 19:04:09,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:09,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:09,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-13 19:04:09,310 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:09,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:09,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1083737591, now seen corresponding path program 1 times [2022-07-13 19:04:09,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:09,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217458386] [2022-07-13 19:04:09,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:09,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:09,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:09,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:09,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217458386] [2022-07-13 19:04:09,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217458386] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:09,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:09,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:09,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22249315] [2022-07-13 19:04:09,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:09,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:09,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:09,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:09,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:09,423 INFO L87 Difference]: Start difference. First operand 422 states and 518 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:10,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:10,262 INFO L93 Difference]: Finished difference Result 849 states and 1092 transitions. [2022-07-13 19:04:10,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:10,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-13 19:04:10,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:10,265 INFO L225 Difference]: With dead ends: 849 [2022-07-13 19:04:10,265 INFO L226 Difference]: Without dead ends: 774 [2022-07-13 19:04:10,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:10,266 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 1927 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1927 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:10,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1927 Valid, 2360 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:04:10,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-07-13 19:04:10,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 422. [2022-07-13 19:04:10,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2733990147783252) internal successors, (517), 421 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:10,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 517 transitions. [2022-07-13 19:04:10,321 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 517 transitions. Word has length 82 [2022-07-13 19:04:10,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:10,321 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 517 transitions. [2022-07-13 19:04:10,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:10,321 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 517 transitions. [2022-07-13 19:04:10,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 19:04:10,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:10,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:10,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-13 19:04:10,322 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:10,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:10,323 INFO L85 PathProgramCache]: Analyzing trace with hash -647233403, now seen corresponding path program 1 times [2022-07-13 19:04:10,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:10,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877047729] [2022-07-13 19:04:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:10,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:10,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:10,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877047729] [2022-07-13 19:04:10,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877047729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:10,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:10,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:10,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681857451] [2022-07-13 19:04:10,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:10,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:10,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:10,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:10,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:10,404 INFO L87 Difference]: Start difference. First operand 422 states and 517 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:11,282 INFO L93 Difference]: Finished difference Result 793 states and 1004 transitions. [2022-07-13 19:04:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:11,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-13 19:04:11,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:11,285 INFO L225 Difference]: With dead ends: 793 [2022-07-13 19:04:11,285 INFO L226 Difference]: Without dead ends: 774 [2022-07-13 19:04:11,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:11,286 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1845 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 1633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:11,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 2452 Invalid, 1633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:04:11,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-07-13 19:04:11,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 422. [2022-07-13 19:04:11,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.270935960591133) internal successors, (516), 421 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:11,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 516 transitions. [2022-07-13 19:04:11,341 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 516 transitions. Word has length 83 [2022-07-13 19:04:11,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:11,341 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 516 transitions. [2022-07-13 19:04:11,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:11,342 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 516 transitions. [2022-07-13 19:04:11,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 19:04:11,342 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:11,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:11,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-13 19:04:11,343 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:11,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:11,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2136665467, now seen corresponding path program 1 times [2022-07-13 19:04:11,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:11,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530599495] [2022-07-13 19:04:11,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:11,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:11,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:11,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:11,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530599495] [2022-07-13 19:04:11,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530599495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:11,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:11,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:11,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643936796] [2022-07-13 19:04:11,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:11,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:11,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:11,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:11,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:11,414 INFO L87 Difference]: Start difference. First operand 422 states and 516 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:12,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:12,005 INFO L93 Difference]: Finished difference Result 829 states and 1056 transitions. [2022-07-13 19:04:12,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:12,006 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-13 19:04:12,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:12,008 INFO L225 Difference]: With dead ends: 829 [2022-07-13 19:04:12,008 INFO L226 Difference]: Without dead ends: 758 [2022-07-13 19:04:12,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:12,009 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 1473 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:12,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 1703 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:04:12,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-07-13 19:04:12,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 422. [2022-07-13 19:04:12,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2684729064039408) internal successors, (515), 421 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:12,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 515 transitions. [2022-07-13 19:04:12,083 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 515 transitions. Word has length 83 [2022-07-13 19:04:12,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:12,083 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 515 transitions. [2022-07-13 19:04:12,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 515 transitions. [2022-07-13 19:04:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 19:04:12,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:12,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:12,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-13 19:04:12,085 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:12,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:12,085 INFO L85 PathProgramCache]: Analyzing trace with hash -609215547, now seen corresponding path program 1 times [2022-07-13 19:04:12,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:12,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519344829] [2022-07-13 19:04:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:12,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:12,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:12,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:12,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519344829] [2022-07-13 19:04:12,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519344829] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:12,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:12,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:12,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374660141] [2022-07-13 19:04:12,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:12,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:12,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:12,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:12,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:12,168 INFO L87 Difference]: Start difference. First operand 422 states and 515 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:12,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:12,782 INFO L93 Difference]: Finished difference Result 858 states and 1097 transitions. [2022-07-13 19:04:12,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:12,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-13 19:04:12,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:12,785 INFO L225 Difference]: With dead ends: 858 [2022-07-13 19:04:12,785 INFO L226 Difference]: Without dead ends: 774 [2022-07-13 19:04:12,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:12,786 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 1926 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1926 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:12,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1926 Valid, 2348 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:04:12,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-07-13 19:04:12,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 422. [2022-07-13 19:04:12,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2660098522167487) internal successors, (514), 421 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:12,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 514 transitions. [2022-07-13 19:04:12,844 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 514 transitions. Word has length 83 [2022-07-13 19:04:12,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:12,845 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 514 transitions. [2022-07-13 19:04:12,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:12,845 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 514 transitions. [2022-07-13 19:04:12,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 19:04:12,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:12,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:12,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-13 19:04:12,846 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:12,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:12,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2078948027, now seen corresponding path program 1 times [2022-07-13 19:04:12,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:12,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590171931] [2022-07-13 19:04:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:12,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:12,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:12,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590171931] [2022-07-13 19:04:12,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590171931] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:12,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:12,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566705599] [2022-07-13 19:04:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:12,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:12,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:12,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:12,924 INFO L87 Difference]: Start difference. First operand 422 states and 514 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:13,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:13,774 INFO L93 Difference]: Finished difference Result 891 states and 1142 transitions. [2022-07-13 19:04:13,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:13,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-13 19:04:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:13,790 INFO L225 Difference]: With dead ends: 891 [2022-07-13 19:04:13,790 INFO L226 Difference]: Without dead ends: 782 [2022-07-13 19:04:13,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:13,791 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 1265 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:13,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 2277 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:04:13,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2022-07-13 19:04:13,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 422. [2022-07-13 19:04:13,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2635467980295567) internal successors, (513), 421 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:13,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 513 transitions. [2022-07-13 19:04:13,898 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 513 transitions. Word has length 83 [2022-07-13 19:04:13,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:13,898 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 513 transitions. [2022-07-13 19:04:13,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:13,898 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 513 transitions. [2022-07-13 19:04:13,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 19:04:13,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:13,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:13,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-13 19:04:13,899 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:13,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:13,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1135938619, now seen corresponding path program 1 times [2022-07-13 19:04:13,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:13,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843140704] [2022-07-13 19:04:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:13,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:13,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:13,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843140704] [2022-07-13 19:04:13,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843140704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:13,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:13,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:13,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411375161] [2022-07-13 19:04:13,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:13,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:13,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:13,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:13,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:13,997 INFO L87 Difference]: Start difference. First operand 422 states and 513 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:14,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:14,913 INFO L93 Difference]: Finished difference Result 829 states and 1053 transitions. [2022-07-13 19:04:14,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:14,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-13 19:04:14,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:14,915 INFO L225 Difference]: With dead ends: 829 [2022-07-13 19:04:14,916 INFO L226 Difference]: Without dead ends: 758 [2022-07-13 19:04:14,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:14,916 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 2379 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2379 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:14,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2379 Valid, 2200 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:04:14,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-07-13 19:04:15,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 422. [2022-07-13 19:04:15,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2610837438423645) internal successors, (512), 421 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:15,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 512 transitions. [2022-07-13 19:04:15,026 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 512 transitions. Word has length 83 [2022-07-13 19:04:15,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:15,026 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 512 transitions. [2022-07-13 19:04:15,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:15,027 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 512 transitions. [2022-07-13 19:04:15,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 19:04:15,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:15,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:15,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-13 19:04:15,028 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:15,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:15,032 INFO L85 PathProgramCache]: Analyzing trace with hash -120186235, now seen corresponding path program 1 times [2022-07-13 19:04:15,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:15,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823656375] [2022-07-13 19:04:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:15,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:15,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:15,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823656375] [2022-07-13 19:04:15,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823656375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:15,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:15,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:15,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160967197] [2022-07-13 19:04:15,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:15,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:15,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:15,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:15,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:15,130 INFO L87 Difference]: Start difference. First operand 422 states and 512 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:15,991 INFO L93 Difference]: Finished difference Result 858 states and 1093 transitions. [2022-07-13 19:04:15,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:15,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-07-13 19:04:15,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:15,995 INFO L225 Difference]: With dead ends: 858 [2022-07-13 19:04:15,995 INFO L226 Difference]: Without dead ends: 774 [2022-07-13 19:04:15,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:04:15,997 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 1693 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:15,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 2785 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:04:15,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-07-13 19:04:16,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 422. [2022-07-13 19:04:16,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2586206896551724) internal successors, (511), 421 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 511 transitions. [2022-07-13 19:04:16,065 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 511 transitions. Word has length 83 [2022-07-13 19:04:16,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:16,065 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 511 transitions. [2022-07-13 19:04:16,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:16,066 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 511 transitions. [2022-07-13 19:04:16,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-13 19:04:16,066 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:16,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:16,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-13 19:04:16,068 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:16,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:16,069 INFO L85 PathProgramCache]: Analyzing trace with hash 901356690, now seen corresponding path program 1 times [2022-07-13 19:04:16,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:16,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883412659] [2022-07-13 19:04:16,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:16,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:16,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:16,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:16,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883412659] [2022-07-13 19:04:16,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883412659] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:16,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:16,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-07-13 19:04:16,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137253121] [2022-07-13 19:04:16,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:16,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-13 19:04:16,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:16,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-13 19:04:16,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=696, Unknown=0, NotChecked=0, Total=756 [2022-07-13 19:04:16,750 INFO L87 Difference]: Start difference. First operand 422 states and 511 transitions. Second operand has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:22,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:22,263 INFO L93 Difference]: Finished difference Result 1570 states and 1926 transitions. [2022-07-13 19:04:22,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-13 19:04:22,263 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-13 19:04:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:22,267 INFO L225 Difference]: With dead ends: 1570 [2022-07-13 19:04:22,267 INFO L226 Difference]: Without dead ends: 1497 [2022-07-13 19:04:22,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=444, Invalid=2418, Unknown=0, NotChecked=0, Total=2862 [2022-07-13 19:04:22,268 INFO L413 NwaCegarLoop]: 1428 mSDtfsCounter, 4519 mSDsluCounter, 19705 mSDsCounter, 0 mSdLazyCounter, 10247 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4519 SdHoareTripleChecker+Valid, 21133 SdHoareTripleChecker+Invalid, 10414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 10247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:22,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4519 Valid, 21133 Invalid, 10414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 10247 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-13 19:04:22,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-07-13 19:04:22,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 443. [2022-07-13 19:04:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 427 states have (on average 1.2576112412177987) internal successors, (537), 442 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:22,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 537 transitions. [2022-07-13 19:04:22,358 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 537 transitions. Word has length 84 [2022-07-13 19:04:22,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:22,358 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 537 transitions. [2022-07-13 19:04:22,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:22,359 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 537 transitions. [2022-07-13 19:04:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-13 19:04:22,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:22,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:22,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-13 19:04:22,360 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:22,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:22,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1803038574, now seen corresponding path program 1 times [2022-07-13 19:04:22,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:22,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516430743] [2022-07-13 19:04:22,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:22,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:23,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:23,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:23,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516430743] [2022-07-13 19:04:23,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516430743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:23,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:23,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-07-13 19:04:23,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084606452] [2022-07-13 19:04:23,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:23,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-13 19:04:23,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:23,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-13 19:04:23,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=696, Unknown=0, NotChecked=0, Total=756 [2022-07-13 19:04:23,061 INFO L87 Difference]: Start difference. First operand 443 states and 537 transitions. Second operand has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:29,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:29,091 INFO L93 Difference]: Finished difference Result 1569 states and 1925 transitions. [2022-07-13 19:04:29,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-13 19:04:29,091 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-13 19:04:29,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:29,104 INFO L225 Difference]: With dead ends: 1569 [2022-07-13 19:04:29,104 INFO L226 Difference]: Without dead ends: 1496 [2022-07-13 19:04:29,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=404, Invalid=2352, Unknown=0, NotChecked=0, Total=2756 [2022-07-13 19:04:29,117 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 4003 mSDsluCounter, 21200 mSDsCounter, 0 mSdLazyCounter, 11063 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4003 SdHoareTripleChecker+Valid, 22612 SdHoareTripleChecker+Invalid, 11207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 11063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:29,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4003 Valid, 22612 Invalid, 11207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 11063 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-13 19:04:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-07-13 19:04:29,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 454. [2022-07-13 19:04:29,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 438 states have (on average 1.2557077625570776) internal successors, (550), 453 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:29,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 550 transitions. [2022-07-13 19:04:29,220 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 550 transitions. Word has length 84 [2022-07-13 19:04:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:29,220 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 550 transitions. [2022-07-13 19:04:29,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:29,220 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 550 transitions. [2022-07-13 19:04:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-13 19:04:29,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:29,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:29,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-13 19:04:29,222 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:29,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:29,222 INFO L85 PathProgramCache]: Analyzing trace with hash 469045170, now seen corresponding path program 1 times [2022-07-13 19:04:29,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:29,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299925278] [2022-07-13 19:04:29,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:29,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:29,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:29,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:29,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299925278] [2022-07-13 19:04:29,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299925278] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:29,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:29,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-07-13 19:04:29,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302726806] [2022-07-13 19:04:29,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:29,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-13 19:04:29,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:29,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-13 19:04:29,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=692, Unknown=0, NotChecked=0, Total=756 [2022-07-13 19:04:29,800 INFO L87 Difference]: Start difference. First operand 454 states and 550 transitions. Second operand has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:35,540 INFO L93 Difference]: Finished difference Result 1688 states and 2104 transitions. [2022-07-13 19:04:35,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-13 19:04:35,541 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-13 19:04:35,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:35,545 INFO L225 Difference]: With dead ends: 1688 [2022-07-13 19:04:35,545 INFO L226 Difference]: Without dead ends: 1619 [2022-07-13 19:04:35,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=379, Invalid=2171, Unknown=0, NotChecked=0, Total=2550 [2022-07-13 19:04:35,546 INFO L413 NwaCegarLoop]: 1394 mSDtfsCounter, 4388 mSDsluCounter, 22318 mSDsCounter, 0 mSdLazyCounter, 11295 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4388 SdHoareTripleChecker+Valid, 23712 SdHoareTripleChecker+Invalid, 11436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 11295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:35,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4388 Valid, 23712 Invalid, 11436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 11295 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-13 19:04:35,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-07-13 19:04:35,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 459. [2022-07-13 19:04:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 443 states have (on average 1.255079006772009) internal successors, (556), 458 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 556 transitions. [2022-07-13 19:04:35,656 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 556 transitions. Word has length 84 [2022-07-13 19:04:35,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:35,656 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 556 transitions. [2022-07-13 19:04:35,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:35,657 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 556 transitions. [2022-07-13 19:04:35,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-13 19:04:35,657 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:35,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:35,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-13 19:04:35,658 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:35,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:35,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2078732722, now seen corresponding path program 1 times [2022-07-13 19:04:35,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:35,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511180280] [2022-07-13 19:04:35,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:35,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:35,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:35,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:35,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511180280] [2022-07-13 19:04:35,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511180280] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:35,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:35,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 19:04:35,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985340729] [2022-07-13 19:04:35,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:35,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 19:04:35,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:35,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 19:04:35,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:04:35,898 INFO L87 Difference]: Start difference. First operand 459 states and 556 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:37,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:37,490 INFO L93 Difference]: Finished difference Result 1410 states and 1808 transitions. [2022-07-13 19:04:37,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-13 19:04:37,490 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-13 19:04:37,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:37,493 INFO L225 Difference]: With dead ends: 1410 [2022-07-13 19:04:37,493 INFO L226 Difference]: Without dead ends: 1344 [2022-07-13 19:04:37,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-07-13 19:04:37,498 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 2869 mSDsluCounter, 5220 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2869 SdHoareTripleChecker+Valid, 5949 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:37,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2869 Valid, 5949 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:04:37,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-07-13 19:04:37,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 458. [2022-07-13 19:04:37,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 442 states have (on average 1.253393665158371) internal successors, (554), 457 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:37,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 554 transitions. [2022-07-13 19:04:37,713 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 554 transitions. Word has length 84 [2022-07-13 19:04:37,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:37,713 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 554 transitions. [2022-07-13 19:04:37,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:37,713 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 554 transitions. [2022-07-13 19:04:37,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-13 19:04:37,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:37,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:37,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-13 19:04:37,714 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:37,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:37,715 INFO L85 PathProgramCache]: Analyzing trace with hash -918543470, now seen corresponding path program 1 times [2022-07-13 19:04:37,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:37,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125925507] [2022-07-13 19:04:37,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:37,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:37,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:37,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:37,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125925507] [2022-07-13 19:04:37,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125925507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:37,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:37,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:04:37,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547166864] [2022-07-13 19:04:37,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:37,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 19:04:37,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:37,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 19:04:37,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:04:37,894 INFO L87 Difference]: Start difference. First operand 458 states and 554 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:38,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:38,797 INFO L93 Difference]: Finished difference Result 1109 states and 1394 transitions. [2022-07-13 19:04:38,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 19:04:38,797 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-13 19:04:38,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:38,799 INFO L225 Difference]: With dead ends: 1109 [2022-07-13 19:04:38,799 INFO L226 Difference]: Without dead ends: 912 [2022-07-13 19:04:38,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-07-13 19:04:38,800 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 3192 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3192 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:38,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3192 Valid, 2269 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:04:38,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2022-07-13 19:04:38,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 326. [2022-07-13 19:04:38,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 315 states have (on average 1.2444444444444445) internal successors, (392), 325 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 392 transitions. [2022-07-13 19:04:38,899 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 392 transitions. Word has length 84 [2022-07-13 19:04:38,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:38,899 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 392 transitions. [2022-07-13 19:04:38,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 392 transitions. [2022-07-13 19:04:38,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 19:04:38,900 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:38,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:38,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-13 19:04:38,901 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:38,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:38,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1485088950, now seen corresponding path program 1 times [2022-07-13 19:04:38,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:38,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946852224] [2022-07-13 19:04:38,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:38,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:39,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:39,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946852224] [2022-07-13 19:04:39,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946852224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:39,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:39,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 19:04:39,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277199432] [2022-07-13 19:04:39,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:39,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:04:39,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:39,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:04:39,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:04:39,086 INFO L87 Difference]: Start difference. First operand 326 states and 392 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:39,854 INFO L93 Difference]: Finished difference Result 847 states and 1075 transitions. [2022-07-13 19:04:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:04:39,854 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-07-13 19:04:39,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:39,855 INFO L225 Difference]: With dead ends: 847 [2022-07-13 19:04:39,856 INFO L226 Difference]: Without dead ends: 682 [2022-07-13 19:04:39,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-13 19:04:39,856 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 1640 mSDsluCounter, 3464 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 4262 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:39,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 4262 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:04:39,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-07-13 19:04:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 219. [2022-07-13 19:04:39,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 212 states have (on average 1.25) internal successors, (265), 218 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 265 transitions. [2022-07-13 19:04:39,942 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 265 transitions. Word has length 85 [2022-07-13 19:04:39,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:39,942 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 265 transitions. [2022-07-13 19:04:39,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 265 transitions. [2022-07-13 19:04:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 19:04:39,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:39,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:39,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-13 19:04:39,943 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:39,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:39,944 INFO L85 PathProgramCache]: Analyzing trace with hash -249178582, now seen corresponding path program 1 times [2022-07-13 19:04:39,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:39,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170703717] [2022-07-13 19:04:39,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:39,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:40,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:40,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:40,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170703717] [2022-07-13 19:04:40,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170703717] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:40,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:40,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 19:04:40,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143702864] [2022-07-13 19:04:40,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:40,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 19:04:40,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:40,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 19:04:40,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:04:40,180 INFO L87 Difference]: Start difference. First operand 219 states and 265 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:40,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:40,862 INFO L93 Difference]: Finished difference Result 578 states and 744 transitions. [2022-07-13 19:04:40,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:04:40,862 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-07-13 19:04:40,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:40,863 INFO L225 Difference]: With dead ends: 578 [2022-07-13 19:04:40,863 INFO L226 Difference]: Without dead ends: 509 [2022-07-13 19:04:40,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-07-13 19:04:40,864 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 1516 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:40,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 2594 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:04:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-07-13 19:04:40,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 215. [2022-07-13 19:04:40,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.244019138755981) internal successors, (260), 214 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 260 transitions. [2022-07-13 19:04:40,942 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 260 transitions. Word has length 85 [2022-07-13 19:04:40,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:40,942 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 260 transitions. [2022-07-13 19:04:40,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:40,943 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 260 transitions. [2022-07-13 19:04:40,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 19:04:40,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:40,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:40,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-13 19:04:40,943 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:40,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:40,945 INFO L85 PathProgramCache]: Analyzing trace with hash 690370282, now seen corresponding path program 1 times [2022-07-13 19:04:40,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:40,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752316255] [2022-07-13 19:04:40,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:40,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:41,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:41,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:41,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752316255] [2022-07-13 19:04:41,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752316255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:41,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:41,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 19:04:41,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397385800] [2022-07-13 19:04:41,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:41,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 19:04:41,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:41,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 19:04:41,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:04:41,181 INFO L87 Difference]: Start difference. First operand 215 states and 260 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:42,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:42,059 INFO L93 Difference]: Finished difference Result 578 states and 742 transitions. [2022-07-13 19:04:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 19:04:42,059 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-07-13 19:04:42,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:42,060 INFO L225 Difference]: With dead ends: 578 [2022-07-13 19:04:42,060 INFO L226 Difference]: Without dead ends: 509 [2022-07-13 19:04:42,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-07-13 19:04:42,061 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1429 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:42,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 2666 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 19:04:42,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-07-13 19:04:42,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 211. [2022-07-13 19:04:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.2378640776699028) internal successors, (255), 210 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 255 transitions. [2022-07-13 19:04:42,140 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 255 transitions. Word has length 85 [2022-07-13 19:04:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:42,141 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 255 transitions. [2022-07-13 19:04:42,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:42,141 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 255 transitions. [2022-07-13 19:04:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 19:04:42,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:42,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:42,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-13 19:04:42,142 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:42,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:42,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1516218390, now seen corresponding path program 1 times [2022-07-13 19:04:42,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:42,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572877962] [2022-07-13 19:04:42,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:42,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:42,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:42,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:42,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572877962] [2022-07-13 19:04:42,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572877962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:42,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:42,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-07-13 19:04:42,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51530147] [2022-07-13 19:04:42,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:42,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-13 19:04:42,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:42,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-13 19:04:42,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-07-13 19:04:42,867 INFO L87 Difference]: Start difference. First operand 211 states and 255 transitions. Second operand has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:47,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:47,179 INFO L93 Difference]: Finished difference Result 1318 states and 1759 transitions. [2022-07-13 19:04:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-13 19:04:47,180 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-07-13 19:04:47,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:47,182 INFO L225 Difference]: With dead ends: 1318 [2022-07-13 19:04:47,182 INFO L226 Difference]: Without dead ends: 1246 [2022-07-13 19:04:47,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=549, Invalid=2757, Unknown=0, NotChecked=0, Total=3306 [2022-07-13 19:04:47,184 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 2602 mSDsluCounter, 11058 mSDsCounter, 0 mSdLazyCounter, 5091 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2602 SdHoareTripleChecker+Valid, 11884 SdHoareTripleChecker+Invalid, 5182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 5091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:47,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2602 Valid, 11884 Invalid, 5182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 5091 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 19:04:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2022-07-13 19:04:47,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 231. [2022-07-13 19:04:47,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.238938053097345) internal successors, (280), 230 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:47,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 280 transitions. [2022-07-13 19:04:47,279 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 280 transitions. Word has length 85 [2022-07-13 19:04:47,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:47,280 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 280 transitions. [2022-07-13 19:04:47,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:47,280 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 280 transitions. [2022-07-13 19:04:47,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-13 19:04:47,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:47,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:47,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-13 19:04:47,281 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:47,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:47,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1855795338, now seen corresponding path program 1 times [2022-07-13 19:04:47,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:47,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432280285] [2022-07-13 19:04:47,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:47,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:47,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:47,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:47,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432280285] [2022-07-13 19:04:47,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432280285] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:47,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:47,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:04:47,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367688741] [2022-07-13 19:04:47,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:47,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 19:04:47,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:47,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 19:04:47,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:04:47,435 INFO L87 Difference]: Start difference. First operand 231 states and 280 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:48,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:48,102 INFO L93 Difference]: Finished difference Result 621 states and 810 transitions. [2022-07-13 19:04:48,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 19:04:48,103 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-07-13 19:04:48,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:48,104 INFO L225 Difference]: With dead ends: 621 [2022-07-13 19:04:48,104 INFO L226 Difference]: Without dead ends: 518 [2022-07-13 19:04:48,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-13 19:04:48,105 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 880 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:48,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 2894 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:04:48,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-07-13 19:04:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 180. [2022-07-13 19:04:48,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 177 states have (on average 1.2372881355932204) internal successors, (219), 179 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:48,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 219 transitions. [2022-07-13 19:04:48,191 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 219 transitions. Word has length 86 [2022-07-13 19:04:48,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:48,191 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 219 transitions. [2022-07-13 19:04:48,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:48,191 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 219 transitions. [2022-07-13 19:04:48,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-13 19:04:48,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:48,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:48,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-13 19:04:48,192 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:48,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:48,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1665825514, now seen corresponding path program 1 times [2022-07-13 19:04:48,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:48,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938865343] [2022-07-13 19:04:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:48,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:48,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:48,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:48,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938865343] [2022-07-13 19:04:48,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938865343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:48,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:48,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:48,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930834377] [2022-07-13 19:04:48,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:48,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:48,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:48,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:48,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:48,257 INFO L87 Difference]: Start difference. First operand 180 states and 219 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:48,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:48,621 INFO L93 Difference]: Finished difference Result 276 states and 346 transitions. [2022-07-13 19:04:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 19:04:48,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-13 19:04:48,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:48,622 INFO L225 Difference]: With dead ends: 276 [2022-07-13 19:04:48,622 INFO L226 Difference]: Without dead ends: 268 [2022-07-13 19:04:48,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-07-13 19:04:48,623 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 896 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:48,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 538 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:04:48,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-07-13 19:04:48,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 180. [2022-07-13 19:04:48,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 177 states have (on average 1.231638418079096) internal successors, (218), 179 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:48,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 218 transitions. [2022-07-13 19:04:48,701 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 218 transitions. Word has length 87 [2022-07-13 19:04:48,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:48,702 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 218 transitions. [2022-07-13 19:04:48,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:48,702 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 218 transitions. [2022-07-13 19:04:48,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-13 19:04:48,702 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:48,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:48,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-13 19:04:48,703 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:48,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:48,703 INFO L85 PathProgramCache]: Analyzing trace with hash -309288342, now seen corresponding path program 1 times [2022-07-13 19:04:48,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:48,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105878613] [2022-07-13 19:04:48,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:48,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:48,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:48,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:48,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105878613] [2022-07-13 19:04:48,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105878613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:48,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:48,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:04:48,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845894588] [2022-07-13 19:04:48,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:48,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:04:48,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:48,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:04:48,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:04:48,808 INFO L87 Difference]: Start difference. First operand 180 states and 218 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:49,244 INFO L93 Difference]: Finished difference Result 373 states and 478 transitions. [2022-07-13 19:04:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 19:04:49,245 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-13 19:04:49,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:49,245 INFO L225 Difference]: With dead ends: 373 [2022-07-13 19:04:49,245 INFO L226 Difference]: Without dead ends: 288 [2022-07-13 19:04:49,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2022-07-13 19:04:49,246 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 989 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:49,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 736 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:04:49,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-07-13 19:04:49,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 180. [2022-07-13 19:04:49,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 177 states have (on average 1.2259887005649717) internal successors, (217), 179 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 217 transitions. [2022-07-13 19:04:49,325 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 217 transitions. Word has length 87 [2022-07-13 19:04:49,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:49,325 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 217 transitions. [2022-07-13 19:04:49,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:49,325 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 217 transitions. [2022-07-13 19:04:49,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-13 19:04:49,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:49,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:49,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-13 19:04:49,326 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1594060367, now seen corresponding path program 1 times [2022-07-13 19:04:49,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:49,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144172761] [2022-07-13 19:04:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:49,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:50,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:50,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144172761] [2022-07-13 19:04:50,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144172761] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:50,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:50,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-07-13 19:04:50,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823569278] [2022-07-13 19:04:50,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:50,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-13 19:04:50,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:50,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-13 19:04:50,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2022-07-13 19:04:50,160 INFO L87 Difference]: Start difference. First operand 180 states and 217 transitions. Second operand has 28 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:54,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:54,660 INFO L93 Difference]: Finished difference Result 1006 states and 1334 transitions. [2022-07-13 19:04:54,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-13 19:04:54,661 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-07-13 19:04:54,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:54,662 INFO L225 Difference]: With dead ends: 1006 [2022-07-13 19:04:54,662 INFO L226 Difference]: Without dead ends: 1000 [2022-07-13 19:04:54,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=378, Invalid=2172, Unknown=0, NotChecked=0, Total=2550 [2022-07-13 19:04:54,663 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 2149 mSDsluCounter, 11739 mSDsCounter, 0 mSdLazyCounter, 5716 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 12454 SdHoareTripleChecker+Invalid, 5768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 5716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:54,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 12454 Invalid, 5768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 5716 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-13 19:04:54,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2022-07-13 19:04:54,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 205. [2022-07-13 19:04:54,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 202 states have (on average 1.2227722772277227) internal successors, (247), 204 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:54,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 247 transitions. [2022-07-13 19:04:54,775 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 247 transitions. Word has length 89 [2022-07-13 19:04:54,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:54,776 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 247 transitions. [2022-07-13 19:04:54,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:54,776 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 247 transitions. [2022-07-13 19:04:54,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-13 19:04:54,776 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:54,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:54,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-13 19:04:54,777 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:54,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:54,777 INFO L85 PathProgramCache]: Analyzing trace with hash -543104753, now seen corresponding path program 1 times [2022-07-13 19:04:54,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:54,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691037959] [2022-07-13 19:04:54,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:54,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:55,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:55,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:55,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691037959] [2022-07-13 19:04:55,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691037959] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:55,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:55,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-07-13 19:04:55,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774907263] [2022-07-13 19:04:55,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:55,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-13 19:04:55,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:55,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-13 19:04:55,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=596, Unknown=0, NotChecked=0, Total=650 [2022-07-13 19:04:55,379 INFO L87 Difference]: Start difference. First operand 205 states and 247 transitions. Second operand has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:58,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:04:58,927 INFO L93 Difference]: Finished difference Result 738 states and 945 transitions. [2022-07-13 19:04:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-13 19:04:58,927 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-07-13 19:04:58,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:04:58,928 INFO L225 Difference]: With dead ends: 738 [2022-07-13 19:04:58,928 INFO L226 Difference]: Without dead ends: 729 [2022-07-13 19:04:58,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=338, Invalid=1918, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 19:04:58,929 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 1541 mSDsluCounter, 10181 mSDsCounter, 0 mSdLazyCounter, 4896 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 10826 SdHoareTripleChecker+Invalid, 4947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 4896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:04:58,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 10826 Invalid, 4947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 4896 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-13 19:04:58,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-07-13 19:04:59,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 209. [2022-07-13 19:04:59,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 206 states have (on average 1.2233009708737863) internal successors, (252), 208 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:59,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 252 transitions. [2022-07-13 19:04:59,031 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 252 transitions. Word has length 89 [2022-07-13 19:04:59,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:04:59,031 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 252 transitions. [2022-07-13 19:04:59,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:04:59,031 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 252 transitions. [2022-07-13 19:04:59,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-13 19:04:59,031 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:04:59,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:04:59,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-13 19:04:59,032 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:04:59,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:04:59,032 INFO L85 PathProgramCache]: Analyzing trace with hash 916649711, now seen corresponding path program 1 times [2022-07-13 19:04:59,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:04:59,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450987073] [2022-07-13 19:04:59,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:04:59,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:04:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:04:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:04:59,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:04:59,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450987073] [2022-07-13 19:04:59,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450987073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:04:59,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:04:59,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 19:04:59,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947632298] [2022-07-13 19:04:59,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:04:59,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 19:04:59,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:04:59,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 19:04:59,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:04:59,239 INFO L87 Difference]: Start difference. First operand 209 states and 252 transitions. Second operand has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:00,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:00,448 INFO L93 Difference]: Finished difference Result 718 states and 973 transitions. [2022-07-13 19:05:00,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 19:05:00,448 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-07-13 19:05:00,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:00,450 INFO L225 Difference]: With dead ends: 718 [2022-07-13 19:05:00,450 INFO L226 Difference]: Without dead ends: 712 [2022-07-13 19:05:00,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-13 19:05:00,451 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 1274 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:00,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 3952 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 19:05:00,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2022-07-13 19:05:00,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 196. [2022-07-13 19:05:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 194 states have (on average 1.2216494845360826) internal successors, (237), 195 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:00,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 237 transitions. [2022-07-13 19:05:00,557 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 237 transitions. Word has length 90 [2022-07-13 19:05:00,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:00,557 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 237 transitions. [2022-07-13 19:05:00,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:00,557 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 237 transitions. [2022-07-13 19:05:00,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-13 19:05:00,557 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:00,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:00,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-13 19:05:00,558 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:00,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:00,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1220515409, now seen corresponding path program 1 times [2022-07-13 19:05:00,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:00,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83858047] [2022-07-13 19:05:00,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:00,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:00,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:00,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:00,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83858047] [2022-07-13 19:05:00,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83858047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:00,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:00,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 19:05:00,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398486135] [2022-07-13 19:05:00,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:00,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 19:05:00,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:00,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 19:05:00,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:05:00,787 INFO L87 Difference]: Start difference. First operand 196 states and 237 transitions. Second operand has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:01,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:01,984 INFO L93 Difference]: Finished difference Result 573 states and 772 transitions. [2022-07-13 19:05:01,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-13 19:05:01,984 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-07-13 19:05:01,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:01,985 INFO L225 Difference]: With dead ends: 573 [2022-07-13 19:05:01,985 INFO L226 Difference]: Without dead ends: 557 [2022-07-13 19:05:01,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-13 19:05:01,986 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 1197 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 3815 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:01,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 3815 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 19:05:01,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-07-13 19:05:02,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 161. [2022-07-13 19:05:02,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.23125) internal successors, (197), 160 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:02,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 197 transitions. [2022-07-13 19:05:02,076 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 197 transitions. Word has length 90 [2022-07-13 19:05:02,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:02,076 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 197 transitions. [2022-07-13 19:05:02,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:02,077 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 197 transitions. [2022-07-13 19:05:02,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-13 19:05:02,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:02,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:02,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-13 19:05:02,077 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:02,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:02,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1829574929, now seen corresponding path program 1 times [2022-07-13 19:05:02,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:02,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23432053] [2022-07-13 19:05:02,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:02,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:02,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:02,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23432053] [2022-07-13 19:05:02,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23432053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:02,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:02,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:05:02,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553681273] [2022-07-13 19:05:02,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:02,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:05:02,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:02,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:05:02,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:05:02,136 INFO L87 Difference]: Start difference. First operand 161 states and 197 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:02,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:02,898 INFO L93 Difference]: Finished difference Result 811 states and 1147 transitions. [2022-07-13 19:05:02,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 19:05:02,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-07-13 19:05:02,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:02,900 INFO L225 Difference]: With dead ends: 811 [2022-07-13 19:05:02,900 INFO L226 Difference]: Without dead ends: 746 [2022-07-13 19:05:02,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-13 19:05:02,900 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1494 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:02,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1375 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:05:02,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-07-13 19:05:03,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 224. [2022-07-13 19:05:03,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 1.295964125560538) internal successors, (289), 223 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:03,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 289 transitions. [2022-07-13 19:05:03,057 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 289 transitions. Word has length 118 [2022-07-13 19:05:03,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:03,058 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 289 transitions. [2022-07-13 19:05:03,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:03,058 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 289 transitions. [2022-07-13 19:05:03,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-13 19:05:03,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:03,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:03,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-13 19:05:03,059 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:03,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:03,059 INFO L85 PathProgramCache]: Analyzing trace with hash -58815912, now seen corresponding path program 1 times [2022-07-13 19:05:03,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:03,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787069981] [2022-07-13 19:05:03,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:03,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:03,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:03,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:03,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787069981] [2022-07-13 19:05:03,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787069981] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:03,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:03,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:05:03,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053040024] [2022-07-13 19:05:03,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:03,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:05:03,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:03,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:05:03,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:05:03,113 INFO L87 Difference]: Start difference. First operand 224 states and 289 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:03,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:03,931 INFO L93 Difference]: Finished difference Result 929 states and 1317 transitions. [2022-07-13 19:05:03,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 19:05:03,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-07-13 19:05:03,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:03,933 INFO L225 Difference]: With dead ends: 929 [2022-07-13 19:05:03,933 INFO L226 Difference]: Without dead ends: 801 [2022-07-13 19:05:03,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:05:03,934 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1174 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:03,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 945 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:05:03,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2022-07-13 19:05:04,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 350. [2022-07-13 19:05:04,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 349 states have (on average 1.3581661891117478) internal successors, (474), 349 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:04,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 474 transitions. [2022-07-13 19:05:04,220 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 474 transitions. Word has length 120 [2022-07-13 19:05:04,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:04,220 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 474 transitions. [2022-07-13 19:05:04,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:04,221 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 474 transitions. [2022-07-13 19:05:04,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-13 19:05:04,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:04,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:04,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-13 19:05:04,222 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:04,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:04,222 INFO L85 PathProgramCache]: Analyzing trace with hash 209861823, now seen corresponding path program 1 times [2022-07-13 19:05:04,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:04,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251973069] [2022-07-13 19:05:04,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:04,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:04,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:04,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:04,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251973069] [2022-07-13 19:05:04,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251973069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:04,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:04,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:05:04,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930353372] [2022-07-13 19:05:04,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:04,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:05:04,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:04,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:05:04,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:05:04,254 INFO L87 Difference]: Start difference. First operand 350 states and 474 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:04,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:04,808 INFO L93 Difference]: Finished difference Result 832 states and 1172 transitions. [2022-07-13 19:05:04,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:05:04,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-07-13 19:05:04,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:04,809 INFO L225 Difference]: With dead ends: 832 [2022-07-13 19:05:04,809 INFO L226 Difference]: Without dead ends: 578 [2022-07-13 19:05:04,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:05:04,813 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 82 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:04,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 457 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:05:04,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-07-13 19:05:05,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 576. [2022-07-13 19:05:05,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.3756521739130434) internal successors, (791), 575 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:05,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 791 transitions. [2022-07-13 19:05:05,356 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 791 transitions. Word has length 120 [2022-07-13 19:05:05,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:05,357 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 791 transitions. [2022-07-13 19:05:05,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:05,357 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 791 transitions. [2022-07-13 19:05:05,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-13 19:05:05,357 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:05,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:05,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-13 19:05:05,358 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:05,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:05,358 INFO L85 PathProgramCache]: Analyzing trace with hash 276355335, now seen corresponding path program 1 times [2022-07-13 19:05:05,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:05,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247557345] [2022-07-13 19:05:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:05,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:05,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:05,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247557345] [2022-07-13 19:05:05,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247557345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:05,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:05,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:05:05,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434037071] [2022-07-13 19:05:05,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:05,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:05:05,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:05,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:05:05,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:05:05,475 INFO L87 Difference]: Start difference. First operand 576 states and 791 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:06,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:06,112 INFO L93 Difference]: Finished difference Result 1058 states and 1481 transitions. [2022-07-13 19:05:06,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 19:05:06,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-07-13 19:05:06,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:06,114 INFO L225 Difference]: With dead ends: 1058 [2022-07-13 19:05:06,114 INFO L226 Difference]: Without dead ends: 578 [2022-07-13 19:05:06,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-07-13 19:05:06,115 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 774 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:06,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 553 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:05:06,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-07-13 19:05:06,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 576. [2022-07-13 19:05:06,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.3721739130434782) internal successors, (789), 575 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 789 transitions. [2022-07-13 19:05:06,660 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 789 transitions. Word has length 120 [2022-07-13 19:05:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:06,660 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 789 transitions. [2022-07-13 19:05:06,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:06,661 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 789 transitions. [2022-07-13 19:05:06,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-13 19:05:06,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:06,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:06,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-13 19:05:06,662 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash -755626408, now seen corresponding path program 1 times [2022-07-13 19:05:06,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:06,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145676328] [2022-07-13 19:05:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:06,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:06,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:06,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145676328] [2022-07-13 19:05:06,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145676328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:06,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:06,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:05:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080205504] [2022-07-13 19:05:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:06,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:05:06,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:06,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:05:06,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:05:06,715 INFO L87 Difference]: Start difference. First operand 576 states and 789 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:08,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:08,504 INFO L93 Difference]: Finished difference Result 1903 states and 2686 transitions. [2022-07-13 19:05:08,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 19:05:08,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-07-13 19:05:08,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:08,508 INFO L225 Difference]: With dead ends: 1903 [2022-07-13 19:05:08,508 INFO L226 Difference]: Without dead ends: 1662 [2022-07-13 19:05:08,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:05:08,510 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1097 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:08,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 976 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:05:08,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-13 19:05:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 935. [2022-07-13 19:05:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 934 states have (on average 1.3940042826552463) internal successors, (1302), 934 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1302 transitions. [2022-07-13 19:05:09,508 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1302 transitions. Word has length 120 [2022-07-13 19:05:09,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:09,509 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 1302 transitions. [2022-07-13 19:05:09,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1302 transitions. [2022-07-13 19:05:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-13 19:05:09,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:09,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:09,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-13 19:05:09,511 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:09,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:09,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1539427416, now seen corresponding path program 1 times [2022-07-13 19:05:09,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:09,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375738062] [2022-07-13 19:05:09,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:09,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:09,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:09,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:09,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375738062] [2022-07-13 19:05:09,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375738062] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:09,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:09,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:05:09,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32706937] [2022-07-13 19:05:09,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:09,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:05:09,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:09,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:05:09,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:05:09,621 INFO L87 Difference]: Start difference. First operand 935 states and 1302 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:11,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:11,693 INFO L93 Difference]: Finished difference Result 2142 states and 3028 transitions. [2022-07-13 19:05:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 19:05:11,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-07-13 19:05:11,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:11,710 INFO L225 Difference]: With dead ends: 2142 [2022-07-13 19:05:11,710 INFO L226 Difference]: Without dead ends: 1901 [2022-07-13 19:05:11,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:05:11,713 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1019 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:11,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 1042 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:05:11,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2022-07-13 19:05:12,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1174. [2022-07-13 19:05:12,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 1173 states have (on average 1.4015345268542199) internal successors, (1644), 1173 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1644 transitions. [2022-07-13 19:05:12,982 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1644 transitions. Word has length 120 [2022-07-13 19:05:12,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:12,982 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 1644 transitions. [2022-07-13 19:05:12,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:12,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1644 transitions. [2022-07-13 19:05:12,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-13 19:05:12,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:12,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:12,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-13 19:05:12,984 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:12,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:12,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1420576856, now seen corresponding path program 1 times [2022-07-13 19:05:12,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:12,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673884752] [2022-07-13 19:05:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:12,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:13,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:13,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673884752] [2022-07-13 19:05:13,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673884752] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:13,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:13,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:05:13,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880075200] [2022-07-13 19:05:13,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:13,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:05:13,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:13,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:05:13,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:05:13,043 INFO L87 Difference]: Start difference. First operand 1174 states and 1644 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:15,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:15,374 INFO L93 Difference]: Finished difference Result 2381 states and 3370 transitions. [2022-07-13 19:05:15,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 19:05:15,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-07-13 19:05:15,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:15,393 INFO L225 Difference]: With dead ends: 2381 [2022-07-13 19:05:15,393 INFO L226 Difference]: Without dead ends: 2140 [2022-07-13 19:05:15,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:05:15,394 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 1049 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:15,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 1180 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:05:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-07-13 19:05:16,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1413. [2022-07-13 19:05:16,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1412 states have (on average 1.406515580736544) internal successors, (1986), 1412 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:16,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1986 transitions. [2022-07-13 19:05:16,936 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1986 transitions. Word has length 120 [2022-07-13 19:05:16,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:16,936 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 1986 transitions. [2022-07-13 19:05:16,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:16,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1986 transitions. [2022-07-13 19:05:16,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-13 19:05:16,937 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:16,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:16,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-13 19:05:16,937 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:16,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:16,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1137378904, now seen corresponding path program 1 times [2022-07-13 19:05:16,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:16,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109513394] [2022-07-13 19:05:16,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:16,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:16,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:16,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109513394] [2022-07-13 19:05:16,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109513394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:16,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:16,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:05:16,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512004742] [2022-07-13 19:05:16,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:16,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:05:16,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:16,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:05:16,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:05:16,996 INFO L87 Difference]: Start difference. First operand 1413 states and 1986 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:19,575 INFO L93 Difference]: Finished difference Result 2620 states and 3712 transitions. [2022-07-13 19:05:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 19:05:19,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-07-13 19:05:19,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:19,578 INFO L225 Difference]: With dead ends: 2620 [2022-07-13 19:05:19,579 INFO L226 Difference]: Without dead ends: 2379 [2022-07-13 19:05:19,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:05:19,580 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1049 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:19,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 1066 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:05:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2022-07-13 19:05:21,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 1652. [2022-07-13 19:05:21,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1651 states have (on average 1.4100545124167172) internal successors, (2328), 1651 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:21,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2328 transitions. [2022-07-13 19:05:21,328 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2328 transitions. Word has length 120 [2022-07-13 19:05:21,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:21,329 INFO L495 AbstractCegarLoop]: Abstraction has 1652 states and 2328 transitions. [2022-07-13 19:05:21,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:21,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2328 transitions. [2022-07-13 19:05:21,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-13 19:05:21,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:21,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:21,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-13 19:05:21,330 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:21,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash -2068457782, now seen corresponding path program 1 times [2022-07-13 19:05:21,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:21,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156027489] [2022-07-13 19:05:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:21,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:21,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:21,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156027489] [2022-07-13 19:05:21,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156027489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:21,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:21,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:05:21,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983047199] [2022-07-13 19:05:21,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:21,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:05:21,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:21,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:05:21,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:05:21,365 INFO L87 Difference]: Start difference. First operand 1652 states and 2328 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:24,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:24,164 INFO L93 Difference]: Finished difference Result 4127 states and 5843 transitions. [2022-07-13 19:05:24,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:05:24,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-07-13 19:05:24,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:24,168 INFO L225 Difference]: With dead ends: 4127 [2022-07-13 19:05:24,168 INFO L226 Difference]: Without dead ends: 2571 [2022-07-13 19:05:24,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:05:24,170 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 95 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:24,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 421 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:05:24,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2022-07-13 19:05:26,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2465. [2022-07-13 19:05:26,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2464 states have (on average 1.4042207792207793) internal successors, (3460), 2464 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:26,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3460 transitions. [2022-07-13 19:05:26,864 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3460 transitions. Word has length 121 [2022-07-13 19:05:26,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:26,864 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3460 transitions. [2022-07-13 19:05:26,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:26,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3460 transitions. [2022-07-13 19:05:26,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-13 19:05:26,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:26,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:26,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-13 19:05:26,865 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:26,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:26,866 INFO L85 PathProgramCache]: Analyzing trace with hash -969611133, now seen corresponding path program 1 times [2022-07-13 19:05:26,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:26,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615202876] [2022-07-13 19:05:26,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:26,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:26,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:26,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615202876] [2022-07-13 19:05:26,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615202876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:26,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:26,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:05:26,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177125771] [2022-07-13 19:05:26,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:26,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:05:26,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:26,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:05:26,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:05:26,899 INFO L87 Difference]: Start difference. First operand 2465 states and 3460 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:29,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:29,661 INFO L93 Difference]: Finished difference Result 4899 states and 6908 transitions. [2022-07-13 19:05:29,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:05:29,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-07-13 19:05:29,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:29,665 INFO L225 Difference]: With dead ends: 4899 [2022-07-13 19:05:29,665 INFO L226 Difference]: Without dead ends: 2530 [2022-07-13 19:05:29,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:05:29,667 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 110 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:29,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 319 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:05:29,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2022-07-13 19:05:32,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2528. [2022-07-13 19:05:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2527 states have (on average 1.3937475267115156) internal successors, (3522), 2527 states have internal predecessors, (3522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:32,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 3522 transitions. [2022-07-13 19:05:32,417 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 3522 transitions. Word has length 122 [2022-07-13 19:05:32,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:32,417 INFO L495 AbstractCegarLoop]: Abstraction has 2528 states and 3522 transitions. [2022-07-13 19:05:32,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:32,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 3522 transitions. [2022-07-13 19:05:32,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-13 19:05:32,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:32,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:32,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-13 19:05:32,418 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:32,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:32,419 INFO L85 PathProgramCache]: Analyzing trace with hash 627156676, now seen corresponding path program 1 times [2022-07-13 19:05:32,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:32,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539970472] [2022-07-13 19:05:32,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:32,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:32,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:32,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539970472] [2022-07-13 19:05:32,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539970472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:32,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:32,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:05:32,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758132196] [2022-07-13 19:05:32,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:32,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:05:32,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:32,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:05:32,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:05:32,454 INFO L87 Difference]: Start difference. First operand 2528 states and 3522 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:37,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:37,824 INFO L93 Difference]: Finished difference Result 7232 states and 10082 transitions. [2022-07-13 19:05:37,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:05:37,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-07-13 19:05:37,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:37,829 INFO L225 Difference]: With dead ends: 7232 [2022-07-13 19:05:37,829 INFO L226 Difference]: Without dead ends: 4800 [2022-07-13 19:05:37,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:05:37,832 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 88 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:37,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 418 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:05:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4800 states. [2022-07-13 19:05:43,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4800 to 4638. [2022-07-13 19:05:43,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4638 states, 4637 states have (on average 1.3847315074401552) internal successors, (6421), 4637 states have internal predecessors, (6421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:43,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4638 states to 4638 states and 6421 transitions. [2022-07-13 19:05:43,047 INFO L78 Accepts]: Start accepts. Automaton has 4638 states and 6421 transitions. Word has length 122 [2022-07-13 19:05:43,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:05:43,047 INFO L495 AbstractCegarLoop]: Abstraction has 4638 states and 6421 transitions. [2022-07-13 19:05:43,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:43,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4638 states and 6421 transitions. [2022-07-13 19:05:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-13 19:05:43,048 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:05:43,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:05:43,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-13 19:05:43,049 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:05:43,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:05:43,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1032814975, now seen corresponding path program 1 times [2022-07-13 19:05:43,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:05:43,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594439756] [2022-07-13 19:05:43,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:05:43,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:05:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:05:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:05:43,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:05:43,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594439756] [2022-07-13 19:05:43,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594439756] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:05:43,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:05:43,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:05:43,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765948542] [2022-07-13 19:05:43,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:05:43,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:05:43,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:05:43,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:05:43,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:05:43,084 INFO L87 Difference]: Start difference. First operand 4638 states and 6421 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:05:53,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:05:53,241 INFO L93 Difference]: Finished difference Result 13402 states and 18499 transitions. [2022-07-13 19:05:53,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:05:53,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-07-13 19:05:53,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:05:53,251 INFO L225 Difference]: With dead ends: 13402 [2022-07-13 19:05:53,251 INFO L226 Difference]: Without dead ends: 8860 [2022-07-13 19:05:53,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:05:53,254 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 81 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:05:53,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 419 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:05:53,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8860 states. [2022-07-13 19:06:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8860 to 8538. [2022-07-13 19:06:03,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8538 states, 8537 states have (on average 1.370387724024833) internal successors, (11699), 8537 states have internal predecessors, (11699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:06:03,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8538 states to 8538 states and 11699 transitions. [2022-07-13 19:06:03,263 INFO L78 Accepts]: Start accepts. Automaton has 8538 states and 11699 transitions. Word has length 123 [2022-07-13 19:06:03,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:06:03,263 INFO L495 AbstractCegarLoop]: Abstraction has 8538 states and 11699 transitions. [2022-07-13 19:06:03,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:06:03,263 INFO L276 IsEmpty]: Start isEmpty. Operand 8538 states and 11699 transitions. [2022-07-13 19:06:03,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-13 19:06:03,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:06:03,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:06:03,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-13 19:06:03,264 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:06:03,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:06:03,265 INFO L85 PathProgramCache]: Analyzing trace with hash -144687752, now seen corresponding path program 1 times [2022-07-13 19:06:03,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:06:03,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228923729] [2022-07-13 19:06:03,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:06:03,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:06:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:06:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:06:03,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:06:03,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228923729] [2022-07-13 19:06:03,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228923729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:06:03,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:06:03,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:06:03,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59263114] [2022-07-13 19:06:03,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:06:03,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:06:03,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:06:03,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:06:03,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:06:03,301 INFO L87 Difference]: Start difference. First operand 8538 states and 11699 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:06:22,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:06:22,647 INFO L93 Difference]: Finished difference Result 24782 states and 33773 transitions. [2022-07-13 19:06:22,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:06:22,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-07-13 19:06:22,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:06:22,667 INFO L225 Difference]: With dead ends: 24782 [2022-07-13 19:06:22,667 INFO L226 Difference]: Without dead ends: 16340 [2022-07-13 19:06:22,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:06:22,677 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 74 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:06:22,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 419 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:06:22,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16340 states. [2022-07-13 19:06:41,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16340 to 15698. [2022-07-13 19:06:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15698 states, 15697 states have (on average 1.3515321398993438) internal successors, (21215), 15697 states have internal predecessors, (21215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:06:41,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15698 states to 15698 states and 21215 transitions. [2022-07-13 19:06:41,282 INFO L78 Accepts]: Start accepts. Automaton has 15698 states and 21215 transitions. Word has length 124 [2022-07-13 19:06:41,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:06:41,282 INFO L495 AbstractCegarLoop]: Abstraction has 15698 states and 21215 transitions. [2022-07-13 19:06:41,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:06:41,283 INFO L276 IsEmpty]: Start isEmpty. Operand 15698 states and 21215 transitions. [2022-07-13 19:06:41,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-13 19:06:41,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:06:41,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:06:41,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-13 19:06:41,283 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:06:41,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:06:41,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1164457485, now seen corresponding path program 1 times [2022-07-13 19:06:41,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:06:41,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488741907] [2022-07-13 19:06:41,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:06:41,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:06:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:06:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:06:41,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:06:41,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488741907] [2022-07-13 19:06:41,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488741907] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:06:41,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:06:41,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:06:41,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354933401] [2022-07-13 19:06:41,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:06:41,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:06:41,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:06:41,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:06:41,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:06:41,318 INFO L87 Difference]: Start difference. First operand 15698 states and 21215 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:07:17,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:07:17,462 INFO L93 Difference]: Finished difference Result 45622 states and 61201 transitions. [2022-07-13 19:07:17,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:07:17,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2022-07-13 19:07:17,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:07:17,505 INFO L225 Difference]: With dead ends: 45622 [2022-07-13 19:07:17,506 INFO L226 Difference]: Without dead ends: 30020 [2022-07-13 19:07:17,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:07:17,523 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 64 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:07:17,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 419 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:07:17,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30020 states. [2022-07-13 19:07:52,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30020 to 28738. [2022-07-13 19:07:52,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28738 states, 28737 states have (on average 1.3281483801371055) internal successors, (38167), 28737 states have internal predecessors, (38167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:07:52,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28738 states to 28738 states and 38167 transitions. [2022-07-13 19:07:52,250 INFO L78 Accepts]: Start accepts. Automaton has 28738 states and 38167 transitions. Word has length 125 [2022-07-13 19:07:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:07:52,250 INFO L495 AbstractCegarLoop]: Abstraction has 28738 states and 38167 transitions. [2022-07-13 19:07:52,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:07:52,250 INFO L276 IsEmpty]: Start isEmpty. Operand 28738 states and 38167 transitions. [2022-07-13 19:07:52,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-13 19:07:52,251 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:07:52,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:07:52,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-13 19:07:52,251 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-13 19:07:52,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:07:52,252 INFO L85 PathProgramCache]: Analyzing trace with hash 2124750892, now seen corresponding path program 1 times [2022-07-13 19:07:52,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:07:52,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868336096] [2022-07-13 19:07:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:07:52,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:07:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:07:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:07:52,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:07:52,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868336096] [2022-07-13 19:07:52,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868336096] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:07:52,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:07:52,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 19:07:52,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916758037] [2022-07-13 19:07:52,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:07:52,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 19:07:52,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:07:52,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 19:07:52,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 19:07:52,300 INFO L87 Difference]: Start difference. First operand 28738 states and 38167 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)