/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 07:19:51,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 07:19:51,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 07:19:51,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 07:19:51,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 07:19:51,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 07:19:51,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 07:19:51,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 07:19:51,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 07:19:51,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 07:19:51,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 07:19:51,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 07:19:51,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 07:19:51,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 07:19:51,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 07:19:51,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 07:19:51,604 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 07:19:51,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 07:19:51,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 07:19:51,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 07:19:51,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 07:19:51,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 07:19:51,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 07:19:51,605 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 07:19:51,605 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 07:19:51,605 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 07:19:51,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 07:19:51,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 07:19:51,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 07:19:51,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 07:19:51,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 07:19:51,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:19:51,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 07:19:51,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 07:19:51,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 07:19:51,606 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 07:19:51,606 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 07:19:51,606 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 07:19:51,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 07:19:51,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 07:19:51,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 07:19:51,608 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 07:19:51,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 07:19:51,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 07:19:51,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 07:19:51,838 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 07:19:51,839 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 07:19:51,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-01-10 07:19:51,896 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/590c26944/bb6f82a1933c4adb97c7927b5cd6a83d/FLAGe6469a522 [2022-01-10 07:19:52,531 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 07:19:52,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-01-10 07:19:52,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/590c26944/bb6f82a1933c4adb97c7927b5cd6a83d/FLAGe6469a522 [2022-01-10 07:19:52,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/590c26944/bb6f82a1933c4adb97c7927b5cd6a83d [2022-01-10 07:19:52,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 07:19:52,913 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 07:19:52,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 07:19:52,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 07:19:52,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 07:19:52,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:19:52" (1/1) ... [2022-01-10 07:19:52,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32163bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:52, skipping insertion in model container [2022-01-10 07:19:52,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:19:52" (1/1) ... [2022-01-10 07:19:52,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 07:19:53,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 07:19:53,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[147376,147389] [2022-01-10 07:19:53,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[216640,216653] [2022-01-10 07:19:54,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251269,251282] [2022-01-10 07:19:54,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[268618,268631] [2022-01-10 07:19:54,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[277293,277306] [2022-01-10 07:19:54,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[281602,281615] [2022-01-10 07:19:54,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[285742,285755] [2022-01-10 07:19:54,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[353833,353846] [2022-01-10 07:19:54,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[387694,387707] [2022-01-10 07:19:54,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[404802,404815] [2022-01-10 07:19:54,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[413481,413494] [2022-01-10 07:19:54,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[417791,417804] [2022-01-10 07:19:54,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[421932,421945] [2022-01-10 07:19:54,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[456014,456027] [2022-01-10 07:19:54,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[473125,473138] [2022-01-10 07:19:54,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[481792,481805] [2022-01-10 07:19:54,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[486086,486099] [2022-01-10 07:19:54,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[490211,490224] [2022-01-10 07:19:54,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[508509,508522] [2022-01-10 07:19:54,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[517152,517165] [2022-01-10 07:19:54,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[521446,521459] [2022-01-10 07:19:54,575 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[525571,525584] [2022-01-10 07:19:54,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[530444,530457] [2022-01-10 07:19:54,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[534605,534618] [2022-01-10 07:19:54,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[538899,538912] [2022-01-10 07:19:54,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[543024,543037] [2022-01-10 07:19:54,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[547518,547531] [2022-01-10 07:19:54,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[551659,551672] [2022-01-10 07:19:54,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[555964,555977] [2022-01-10 07:19:54,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:19:54,695 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 07:19:54,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[147376,147389] [2022-01-10 07:19:55,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[216640,216653] [2022-01-10 07:19:55,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251269,251282] [2022-01-10 07:19:55,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[268618,268631] [2022-01-10 07:19:55,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[277293,277306] [2022-01-10 07:19:55,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[281602,281615] [2022-01-10 07:19:55,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[285742,285755] [2022-01-10 07:19:55,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[353833,353846] [2022-01-10 07:19:55,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[387694,387707] [2022-01-10 07:19:55,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[404802,404815] [2022-01-10 07:19:55,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[413481,413494] [2022-01-10 07:19:55,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[417791,417804] [2022-01-10 07:19:55,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[421932,421945] [2022-01-10 07:19:55,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[456014,456027] [2022-01-10 07:19:55,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[473125,473138] [2022-01-10 07:19:55,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[481792,481805] [2022-01-10 07:19:55,575 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[486086,486099] [2022-01-10 07:19:55,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[490211,490224] [2022-01-10 07:19:55,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[508509,508522] [2022-01-10 07:19:55,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[517152,517165] [2022-01-10 07:19:55,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[521446,521459] [2022-01-10 07:19:55,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[525571,525584] [2022-01-10 07:19:55,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[530444,530457] [2022-01-10 07:19:55,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[534605,534618] [2022-01-10 07:19:55,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[538899,538912] [2022-01-10 07:19:55,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[543024,543037] [2022-01-10 07:19:55,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[547518,547531] [2022-01-10 07:19:55,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[551659,551672] [2022-01-10 07:19:55,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[555964,555977] [2022-01-10 07:19:55,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:19:55,752 INFO L208 MainTranslator]: Completed translation [2022-01-10 07:19:55,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55 WrapperNode [2022-01-10 07:19:55,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 07:19:55,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 07:19:55,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 07:19:55,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 07:19:55,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (1/1) ... [2022-01-10 07:19:55,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (1/1) ... [2022-01-10 07:19:56,010 INFO L137 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24415 [2022-01-10 07:19:56,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 07:19:56,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 07:19:56,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 07:19:56,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 07:19:56,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (1/1) ... [2022-01-10 07:19:56,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (1/1) ... [2022-01-10 07:19:56,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (1/1) ... [2022-01-10 07:19:56,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (1/1) ... [2022-01-10 07:19:56,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (1/1) ... [2022-01-10 07:19:56,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (1/1) ... [2022-01-10 07:19:56,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (1/1) ... [2022-01-10 07:19:56,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 07:19:56,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 07:19:56,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 07:19:56,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 07:19:56,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (1/1) ... [2022-01-10 07:19:56,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:19:56,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 07:19:56,505 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) [2022-01-10 07:19:56,522 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 [2022-01-10 07:19:56,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 07:19:56,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 07:19:56,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 07:19:56,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 07:19:56,961 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 07:19:56,963 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 07:20:06,803 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 07:20:06,831 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 07:20:06,831 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 07:20:06,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:20:06 BoogieIcfgContainer [2022-01-10 07:20:06,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 07:20:06,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 07:20:06,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 07:20:06,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 07:20:06,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:19:52" (1/3) ... [2022-01-10 07:20:06,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532d89a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:20:06, skipping insertion in model container [2022-01-10 07:20:06,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:55" (2/3) ... [2022-01-10 07:20:06,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532d89a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:20:06, skipping insertion in model container [2022-01-10 07:20:06,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:20:06" (3/3) ... [2022-01-10 07:20:06,846 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-01-10 07:20:06,850 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 07:20:06,850 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-01-10 07:20:06,998 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 07:20:07,002 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 07:20:07,003 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-01-10 07:20:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 5023 states, 4993 states have (on average 1.8155417584618465) internal successors, (9065), 5022 states have internal predecessors, (9065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:07,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 07:20:07,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:07,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:07,118 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:07,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:07,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1176206024, now seen corresponding path program 1 times [2022-01-10 07:20:07,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:07,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041536531] [2022-01-10 07:20:07,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:07,136 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:07,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:07,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:07,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 07:20:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:07,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:20:07,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:08,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:08,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:08,303 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:08,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041536531] [2022-01-10 07:20:08,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041536531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:08,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:08,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:20:08,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101169569] [2022-01-10 07:20:08,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:08,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:20:08,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:08,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:20:08,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:20:08,345 INFO L87 Difference]: Start difference. First operand has 5023 states, 4993 states have (on average 1.8155417584618465) internal successors, (9065), 5022 states have internal predecessors, (9065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:13,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:13,022 INFO L93 Difference]: Finished difference Result 6425 states and 11422 transitions. [2022-01-10 07:20:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:20:13,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-10 07:20:13,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:13,063 INFO L225 Difference]: With dead ends: 6425 [2022-01-10 07:20:13,064 INFO L226 Difference]: Without dead ends: 4383 [2022-01-10 07:20:13,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:20:13,076 INFO L933 BasicCegarLoop]: 7819 mSDtfsCounter, 135 mSDsluCounter, 7967 mSDsCounter, 0 mSdLazyCounter, 7526 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 15786 SdHoareTripleChecker+Invalid, 7548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:13,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 15786 Invalid, 7548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7526 Invalid, 0 Unknown, 21 Unchecked, 4.4s Time] [2022-01-10 07:20:13,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4383 states. [2022-01-10 07:20:13,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4383 to 4383. [2022-01-10 07:20:13,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 4354 states have (on average 1.3121267799724392) internal successors, (5713), 4382 states have internal predecessors, (5713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:13,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 5713 transitions. [2022-01-10 07:20:13,307 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 5713 transitions. Word has length 101 [2022-01-10 07:20:13,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:13,307 INFO L470 AbstractCegarLoop]: Abstraction has 4383 states and 5713 transitions. [2022-01-10 07:20:13,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:13,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 5713 transitions. [2022-01-10 07:20:13,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 07:20:13,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:13,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:13,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:13,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:13,524 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:13,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash 234205091, now seen corresponding path program 1 times [2022-01-10 07:20:13,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:13,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395619398] [2022-01-10 07:20:13,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:13,529 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:13,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:13,530 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:13,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 07:20:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:14,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:20:14,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:14,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:14,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:14,521 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:14,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395619398] [2022-01-10 07:20:14,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395619398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:14,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:14,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:20:14,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91627565] [2022-01-10 07:20:14,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:14,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:20:14,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:14,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:20:14,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:20:14,525 INFO L87 Difference]: Start difference. First operand 4383 states and 5713 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:16,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:16,865 INFO L93 Difference]: Finished difference Result 5594 states and 7297 transitions. [2022-01-10 07:20:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:20:16,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-10 07:20:16,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:16,878 INFO L225 Difference]: With dead ends: 5594 [2022-01-10 07:20:16,878 INFO L226 Difference]: Without dead ends: 3938 [2022-01-10 07:20:16,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:20:16,883 INFO L933 BasicCegarLoop]: 5123 mSDtfsCounter, 62 mSDsluCounter, 4348 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 9471 SdHoareTripleChecker+Invalid, 5847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2954 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:16,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 9471 Invalid, 5847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2892 Invalid, 0 Unknown, 2954 Unchecked, 2.2s Time] [2022-01-10 07:20:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-01-10 07:20:16,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3938. [2022-01-10 07:20:16,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3909 states have (on average 1.3128677411102583) internal successors, (5132), 3937 states have internal predecessors, (5132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5132 transitions. [2022-01-10 07:20:16,944 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5132 transitions. Word has length 101 [2022-01-10 07:20:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:16,946 INFO L470 AbstractCegarLoop]: Abstraction has 3938 states and 5132 transitions. [2022-01-10 07:20:16,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:16,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5132 transitions. [2022-01-10 07:20:16,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 07:20:16,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:16,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:16,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:17,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:17,165 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:17,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:17,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1796459550, now seen corresponding path program 1 times [2022-01-10 07:20:17,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:17,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300599246] [2022-01-10 07:20:17,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:17,167 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:17,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:17,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:17,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 07:20:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:17,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:20:17,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:17,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:17,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:17,993 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:17,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300599246] [2022-01-10 07:20:17,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300599246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:17,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:17,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:20:17,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818733642] [2022-01-10 07:20:17,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:17,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:20:17,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:17,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:20:17,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:20:17,996 INFO L87 Difference]: Start difference. First operand 3938 states and 5132 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:19,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:19,522 INFO L93 Difference]: Finished difference Result 5212 states and 6883 transitions. [2022-01-10 07:20:19,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:20:19,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-10 07:20:19,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:19,530 INFO L225 Difference]: With dead ends: 5212 [2022-01-10 07:20:19,530 INFO L226 Difference]: Without dead ends: 2709 [2022-01-10 07:20:19,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:20:19,540 INFO L933 BasicCegarLoop]: 3691 mSDtfsCounter, 75 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 5318 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:19,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 5318 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2035 Invalid, 0 Unknown, 10 Unchecked, 1.5s Time] [2022-01-10 07:20:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2022-01-10 07:20:19,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2709. [2022-01-10 07:20:19,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2709 states, 2680 states have (on average 1.3787313432835822) internal successors, (3695), 2708 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:19,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 3695 transitions. [2022-01-10 07:20:19,572 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 3695 transitions. Word has length 101 [2022-01-10 07:20:19,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:19,573 INFO L470 AbstractCegarLoop]: Abstraction has 2709 states and 3695 transitions. [2022-01-10 07:20:19,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:19,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 3695 transitions. [2022-01-10 07:20:19,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 07:20:19,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:19,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:19,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:19,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:19,788 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:19,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1952954755, now seen corresponding path program 1 times [2022-01-10 07:20:19,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:19,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629090457] [2022-01-10 07:20:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:19,789 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:19,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:19,795 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:19,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 07:20:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:20,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:20:20,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:20,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:20,648 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:20,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629090457] [2022-01-10 07:20:20,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629090457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:20,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:20,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:20:20,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148400979] [2022-01-10 07:20:20,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:20,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:20:20,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:20,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:20:20,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:20:20,651 INFO L87 Difference]: Start difference. First operand 2709 states and 3695 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:21,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:21,755 INFO L93 Difference]: Finished difference Result 3488 states and 4703 transitions. [2022-01-10 07:20:21,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:20:21,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-01-10 07:20:21,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:21,766 INFO L225 Difference]: With dead ends: 3488 [2022-01-10 07:20:21,766 INFO L226 Difference]: Without dead ends: 2144 [2022-01-10 07:20:21,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:20:21,777 INFO L933 BasicCegarLoop]: 2932 mSDtfsCounter, 56 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4294 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:21,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 4294 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1563 Invalid, 0 Unknown, 16 Unchecked, 1.1s Time] [2022-01-10 07:20:21,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2022-01-10 07:20:21,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2144. [2022-01-10 07:20:21,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2144 states, 2115 states have (on average 1.391016548463357) internal successors, (2942), 2143 states have internal predecessors, (2942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:21,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2144 states to 2144 states and 2942 transitions. [2022-01-10 07:20:21,799 INFO L78 Accepts]: Start accepts. Automaton has 2144 states and 2942 transitions. Word has length 102 [2022-01-10 07:20:21,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:21,799 INFO L470 AbstractCegarLoop]: Abstraction has 2144 states and 2942 transitions. [2022-01-10 07:20:21,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2144 states and 2942 transitions. [2022-01-10 07:20:21,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 07:20:21,803 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:21,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:21,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:22,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:22,011 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:22,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:22,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1549955692, now seen corresponding path program 1 times [2022-01-10 07:20:22,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:22,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478213030] [2022-01-10 07:20:22,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:22,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:22,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:22,013 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:22,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 07:20:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:22,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:20:22,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:22,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:22,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:22,774 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:22,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478213030] [2022-01-10 07:20:22,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478213030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:22,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:22,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:20:22,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415280263] [2022-01-10 07:20:22,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:22,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:20:22,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:22,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:20:22,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:20:22,775 INFO L87 Difference]: Start difference. First operand 2144 states and 2942 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:23,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:23,588 INFO L93 Difference]: Finished difference Result 2667 states and 3598 transitions. [2022-01-10 07:20:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:20:23,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-10 07:20:23,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:23,593 INFO L225 Difference]: With dead ends: 2667 [2022-01-10 07:20:23,593 INFO L226 Difference]: Without dead ends: 1607 [2022-01-10 07:20:23,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:20:23,595 INFO L933 BasicCegarLoop]: 2203 mSDtfsCounter, 50 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3301 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:23,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 3301 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1105 Invalid, 0 Unknown, 18 Unchecked, 0.8s Time] [2022-01-10 07:20:23,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2022-01-10 07:20:23,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1607. [2022-01-10 07:20:23,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1578 states have (on average 1.4036755386565272) internal successors, (2215), 1606 states have internal predecessors, (2215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:23,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2215 transitions. [2022-01-10 07:20:23,626 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2215 transitions. Word has length 103 [2022-01-10 07:20:23,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:23,627 INFO L470 AbstractCegarLoop]: Abstraction has 1607 states and 2215 transitions. [2022-01-10 07:20:23,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:23,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2215 transitions. [2022-01-10 07:20:23,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 07:20:23,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:23,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:23,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:23,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:23,848 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:23,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:23,848 INFO L85 PathProgramCache]: Analyzing trace with hash 326718522, now seen corresponding path program 1 times [2022-01-10 07:20:23,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:23,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898913172] [2022-01-10 07:20:23,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:23,849 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:23,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:23,850 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:23,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 07:20:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:24,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:20:24,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:24,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:24,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:24,675 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:24,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898913172] [2022-01-10 07:20:24,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898913172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:24,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:24,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:20:24,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712407833] [2022-01-10 07:20:24,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:24,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:20:24,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:24,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:20:24,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:20:24,676 INFO L87 Difference]: Start difference. First operand 1607 states and 2215 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:25,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:25,519 INFO L93 Difference]: Finished difference Result 1864 states and 2509 transitions. [2022-01-10 07:20:25,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:20:25,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-10 07:20:25,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:25,523 INFO L225 Difference]: With dead ends: 1864 [2022-01-10 07:20:25,523 INFO L226 Difference]: Without dead ends: 1083 [2022-01-10 07:20:25,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:20:25,525 INFO L933 BasicCegarLoop]: 1483 mSDtfsCounter, 34 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:25,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 2993 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1407 Invalid, 0 Unknown, 20 Unchecked, 0.8s Time] [2022-01-10 07:20:25,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2022-01-10 07:20:25,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1083. [2022-01-10 07:20:25,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1054 states have (on average 1.420303605313093) internal successors, (1497), 1082 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:25,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1497 transitions. [2022-01-10 07:20:25,539 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1497 transitions. Word has length 104 [2022-01-10 07:20:25,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:25,539 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1497 transitions. [2022-01-10 07:20:25,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:25,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1497 transitions. [2022-01-10 07:20:25,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 07:20:25,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:25,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:25,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-01-10 07:20:25,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:25,750 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:25,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:25,751 INFO L85 PathProgramCache]: Analyzing trace with hash -809590967, now seen corresponding path program 1 times [2022-01-10 07:20:25,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:25,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822594665] [2022-01-10 07:20:25,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:25,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:25,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:25,753 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:25,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 07:20:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:26,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:20:26,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:26,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:26,548 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:26,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822594665] [2022-01-10 07:20:26,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822594665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:26,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:26,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:20:26,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906222525] [2022-01-10 07:20:26,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:26,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:20:26,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:26,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:20:26,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:20:26,549 INFO L87 Difference]: Start difference. First operand 1083 states and 1497 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:27,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:27,530 INFO L93 Difference]: Finished difference Result 1665 states and 2305 transitions. [2022-01-10 07:20:27,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:20:27,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-01-10 07:20:27,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:27,542 INFO L225 Difference]: With dead ends: 1665 [2022-01-10 07:20:27,542 INFO L226 Difference]: Without dead ends: 1075 [2022-01-10 07:20:27,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:20:27,544 INFO L933 BasicCegarLoop]: 1472 mSDtfsCounter, 31 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 2251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 732 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:27,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 3560 Invalid, 2251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1518 Invalid, 0 Unknown, 732 Unchecked, 0.9s Time] [2022-01-10 07:20:27,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2022-01-10 07:20:27,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1075. [2022-01-10 07:20:27,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1046 states have (on average 1.4225621414913958) internal successors, (1488), 1074 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:27,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1488 transitions. [2022-01-10 07:20:27,560 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1488 transitions. Word has length 105 [2022-01-10 07:20:27,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:27,561 INFO L470 AbstractCegarLoop]: Abstraction has 1075 states and 1488 transitions. [2022-01-10 07:20:27,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:27,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1488 transitions. [2022-01-10 07:20:27,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 07:20:27,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:27,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:27,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:27,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:27,773 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:27,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:27,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1784080565, now seen corresponding path program 1 times [2022-01-10 07:20:27,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:27,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712242530] [2022-01-10 07:20:27,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:27,774 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:27,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:27,775 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:27,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 07:20:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:28,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:28,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:29,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:29,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:29,135 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:29,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712242530] [2022-01-10 07:20:29,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712242530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:29,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:29,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:29,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523995493] [2022-01-10 07:20:29,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:29,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:29,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:29,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:29,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:29,136 INFO L87 Difference]: Start difference. First operand 1075 states and 1488 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:29,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:29,671 INFO L93 Difference]: Finished difference Result 1268 states and 1776 transitions. [2022-01-10 07:20:29,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:29,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-10 07:20:29,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:29,675 INFO L225 Difference]: With dead ends: 1268 [2022-01-10 07:20:29,675 INFO L226 Difference]: Without dead ends: 1086 [2022-01-10 07:20:29,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:20:29,677 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 114 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:29,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2480 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 635 Invalid, 0 Unknown, 90 Unchecked, 0.5s Time] [2022-01-10 07:20:29,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2022-01-10 07:20:29,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1075. [2022-01-10 07:20:29,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1046 states have (on average 1.4216061185468452) internal successors, (1487), 1074 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1487 transitions. [2022-01-10 07:20:29,693 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1487 transitions. Word has length 106 [2022-01-10 07:20:29,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:29,694 INFO L470 AbstractCegarLoop]: Abstraction has 1075 states and 1487 transitions. [2022-01-10 07:20:29,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1487 transitions. [2022-01-10 07:20:29,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 07:20:29,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:29,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:29,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:29,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:29,907 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:29,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:29,908 INFO L85 PathProgramCache]: Analyzing trace with hash -93884374, now seen corresponding path program 1 times [2022-01-10 07:20:29,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:29,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772356692] [2022-01-10 07:20:29,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:29,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:29,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:29,910 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:29,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 07:20:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:30,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:30,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:31,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:31,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:31,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:31,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772356692] [2022-01-10 07:20:31,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772356692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:31,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:31,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:31,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464069678] [2022-01-10 07:20:31,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:31,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:31,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:31,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:31,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:31,207 INFO L87 Difference]: Start difference. First operand 1075 states and 1487 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:31,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:31,740 INFO L93 Difference]: Finished difference Result 1379 states and 1931 transitions. [2022-01-10 07:20:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:31,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-10 07:20:31,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:31,744 INFO L225 Difference]: With dead ends: 1379 [2022-01-10 07:20:31,744 INFO L226 Difference]: Without dead ends: 1077 [2022-01-10 07:20:31,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:20:31,745 INFO L933 BasicCegarLoop]: 1462 mSDtfsCounter, 91 mSDsluCounter, 2502 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 3964 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1325 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:31,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 3964 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 638 Invalid, 0 Unknown, 1325 Unchecked, 0.5s Time] [2022-01-10 07:20:31,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-01-10 07:20:31,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1075. [2022-01-10 07:20:31,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1046 states have (on average 1.4206500956022945) internal successors, (1486), 1074 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:31,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1486 transitions. [2022-01-10 07:20:31,758 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1486 transitions. Word has length 106 [2022-01-10 07:20:31,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:31,758 INFO L470 AbstractCegarLoop]: Abstraction has 1075 states and 1486 transitions. [2022-01-10 07:20:31,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:31,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1486 transitions. [2022-01-10 07:20:31,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 07:20:31,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:31,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:31,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:31,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:31,970 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:31,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:31,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1447789183, now seen corresponding path program 1 times [2022-01-10 07:20:31,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:31,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559589012] [2022-01-10 07:20:31,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:31,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:31,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:31,996 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:32,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 07:20:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:32,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 07:20:32,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:32,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:32,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:32,852 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:32,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [559589012] [2022-01-10 07:20:32,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [559589012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:32,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:32,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 07:20:32,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415565405] [2022-01-10 07:20:32,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:32,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 07:20:32,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:32,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 07:20:32,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-10 07:20:32,854 INFO L87 Difference]: Start difference. First operand 1075 states and 1486 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:33,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:33,334 INFO L93 Difference]: Finished difference Result 1657 states and 2294 transitions. [2022-01-10 07:20:33,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 07:20:33,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-10 07:20:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:33,338 INFO L225 Difference]: With dead ends: 1657 [2022-01-10 07:20:33,338 INFO L226 Difference]: Without dead ends: 1075 [2022-01-10 07:20:33,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:33,339 INFO L933 BasicCegarLoop]: 1465 mSDtfsCounter, 43 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:33,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 2424 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 641 Invalid, 0 Unknown, 31 Unchecked, 0.4s Time] [2022-01-10 07:20:33,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2022-01-10 07:20:33,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1075. [2022-01-10 07:20:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1046 states have (on average 1.4196940726577438) internal successors, (1485), 1074 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1485 transitions. [2022-01-10 07:20:33,351 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1485 transitions. Word has length 106 [2022-01-10 07:20:33,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:33,351 INFO L470 AbstractCegarLoop]: Abstraction has 1075 states and 1485 transitions. [2022-01-10 07:20:33,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:33,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1485 transitions. [2022-01-10 07:20:33,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 07:20:33,353 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:33,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:33,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:33,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:33,561 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:33,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:33,562 INFO L85 PathProgramCache]: Analyzing trace with hash 166479194, now seen corresponding path program 1 times [2022-01-10 07:20:33,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:33,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826138097] [2022-01-10 07:20:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:33,562 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:33,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:33,563 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:33,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 07:20:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:33,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:33,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:34,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:34,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:34,814 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:34,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826138097] [2022-01-10 07:20:34,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826138097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:34,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:34,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:34,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569133017] [2022-01-10 07:20:34,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:34,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:34,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:34,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:34,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:34,815 INFO L87 Difference]: Start difference. First operand 1075 states and 1485 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:34,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:34,843 INFO L93 Difference]: Finished difference Result 1279 states and 1777 transitions. [2022-01-10 07:20:34,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 07:20:34,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 07:20:34,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:34,846 INFO L225 Difference]: With dead ends: 1279 [2022-01-10 07:20:34,846 INFO L226 Difference]: Without dead ends: 1076 [2022-01-10 07:20:34,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:34,847 INFO L933 BasicCegarLoop]: 1457 mSDtfsCounter, 64 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1941 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:34,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 4747 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 1941 Unchecked, 0.0s Time] [2022-01-10 07:20:34,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-01-10 07:20:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1075. [2022-01-10 07:20:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1046 states have (on average 1.4187380497131932) internal successors, (1484), 1074 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:34,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1484 transitions. [2022-01-10 07:20:34,858 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1484 transitions. Word has length 108 [2022-01-10 07:20:34,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:34,858 INFO L470 AbstractCegarLoop]: Abstraction has 1075 states and 1484 transitions. [2022-01-10 07:20:34,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:34,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1484 transitions. [2022-01-10 07:20:34,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 07:20:34,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:34,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:34,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-01-10 07:20:35,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:35,068 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:35,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:35,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1568327130, now seen corresponding path program 1 times [2022-01-10 07:20:35,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:35,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077015422] [2022-01-10 07:20:35,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:35,069 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:35,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:35,070 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:35,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 07:20:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:35,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:35,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:36,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:36,350 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:36,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077015422] [2022-01-10 07:20:36,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077015422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:36,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:36,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:36,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560608735] [2022-01-10 07:20:36,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:36,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:36,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:36,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:36,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:36,351 INFO L87 Difference]: Start difference. First operand 1075 states and 1484 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:36,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:36,838 INFO L93 Difference]: Finished difference Result 1210 states and 1687 transitions. [2022-01-10 07:20:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:36,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 07:20:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:36,841 INFO L225 Difference]: With dead ends: 1210 [2022-01-10 07:20:36,841 INFO L226 Difference]: Without dead ends: 1076 [2022-01-10 07:20:36,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:20:36,842 INFO L933 BasicCegarLoop]: 1451 mSDtfsCounter, 91 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:36,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 2475 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 627 Invalid, 0 Unknown, 50 Unchecked, 0.5s Time] [2022-01-10 07:20:36,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-01-10 07:20:36,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1075. [2022-01-10 07:20:36,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1046 states have (on average 1.4177820267686425) internal successors, (1483), 1074 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:36,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1483 transitions. [2022-01-10 07:20:36,853 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1483 transitions. Word has length 108 [2022-01-10 07:20:36,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:36,855 INFO L470 AbstractCegarLoop]: Abstraction has 1075 states and 1483 transitions. [2022-01-10 07:20:36,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:36,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1483 transitions. [2022-01-10 07:20:36,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 07:20:36,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:36,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:36,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:37,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:37,065 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:37,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:37,065 INFO L85 PathProgramCache]: Analyzing trace with hash 2048480592, now seen corresponding path program 1 times [2022-01-10 07:20:37,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:37,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885548961] [2022-01-10 07:20:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:37,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:37,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:37,067 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:37,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 07:20:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:37,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:37,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:38,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:38,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:38,237 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:38,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885548961] [2022-01-10 07:20:38,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885548961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:38,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:38,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:38,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139777017] [2022-01-10 07:20:38,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:38,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:38,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:38,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:38,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:38,239 INFO L87 Difference]: Start difference. First operand 1075 states and 1483 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:38,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:38,970 INFO L93 Difference]: Finished difference Result 1434 states and 1979 transitions. [2022-01-10 07:20:38,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:38,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 07:20:38,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:38,973 INFO L225 Difference]: With dead ends: 1434 [2022-01-10 07:20:38,973 INFO L226 Difference]: Without dead ends: 1079 [2022-01-10 07:20:38,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:20:38,974 INFO L933 BasicCegarLoop]: 1460 mSDtfsCounter, 56 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3939 SdHoareTripleChecker+Invalid, 1952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 676 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:38,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 3939 Invalid, 1952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1275 Invalid, 0 Unknown, 676 Unchecked, 0.7s Time] [2022-01-10 07:20:38,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2022-01-10 07:20:38,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2022-01-10 07:20:38,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1050 states have (on average 1.4161904761904762) internal successors, (1487), 1078 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:38,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1487 transitions. [2022-01-10 07:20:38,988 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1487 transitions. Word has length 108 [2022-01-10 07:20:38,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:38,989 INFO L470 AbstractCegarLoop]: Abstraction has 1079 states and 1487 transitions. [2022-01-10 07:20:38,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:38,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1487 transitions. [2022-01-10 07:20:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 07:20:38,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:38,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:38,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:39,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:39,192 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:39,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1899937595, now seen corresponding path program 1 times [2022-01-10 07:20:39,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:39,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671702253] [2022-01-10 07:20:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:39,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:39,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:39,194 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:39,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 07:20:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:39,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:39,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:40,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:40,391 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:40,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671702253] [2022-01-10 07:20:40,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671702253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:40,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:40,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:40,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472760233] [2022-01-10 07:20:40,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:40,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:40,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:40,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:40,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:40,392 INFO L87 Difference]: Start difference. First operand 1079 states and 1487 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:40,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:40,924 INFO L93 Difference]: Finished difference Result 1213 states and 1690 transitions. [2022-01-10 07:20:40,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:40,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 07:20:40,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:40,927 INFO L225 Difference]: With dead ends: 1213 [2022-01-10 07:20:40,927 INFO L226 Difference]: Without dead ends: 1080 [2022-01-10 07:20:40,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:20:40,928 INFO L933 BasicCegarLoop]: 1450 mSDtfsCounter, 72 mSDsluCounter, 4008 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 5458 SdHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1931 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:40,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 5458 Invalid, 2571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 639 Invalid, 0 Unknown, 1931 Unchecked, 0.5s Time] [2022-01-10 07:20:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-01-10 07:20:40,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1079. [2022-01-10 07:20:40,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1050 states have (on average 1.4152380952380952) internal successors, (1486), 1078 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1486 transitions. [2022-01-10 07:20:40,944 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1486 transitions. Word has length 108 [2022-01-10 07:20:40,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:40,944 INFO L470 AbstractCegarLoop]: Abstraction has 1079 states and 1486 transitions. [2022-01-10 07:20:40,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:40,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1486 transitions. [2022-01-10 07:20:40,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 07:20:40,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:40,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:40,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:41,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:41,157 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:41,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:41,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1013800078, now seen corresponding path program 1 times [2022-01-10 07:20:41,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:41,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127286257] [2022-01-10 07:20:41,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:41,158 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:41,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:41,167 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:41,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 07:20:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:41,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:41,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:42,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:42,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:42,483 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:42,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127286257] [2022-01-10 07:20:42,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127286257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:42,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:42,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:42,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947504987] [2022-01-10 07:20:42,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:42,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:42,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:42,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:42,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:42,484 INFO L87 Difference]: Start difference. First operand 1079 states and 1486 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:43,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:43,209 INFO L93 Difference]: Finished difference Result 1281 states and 1780 transitions. [2022-01-10 07:20:43,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:43,209 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 07:20:43,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:43,212 INFO L225 Difference]: With dead ends: 1281 [2022-01-10 07:20:43,213 INFO L226 Difference]: Without dead ends: 1079 [2022-01-10 07:20:43,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:20:43,213 INFO L933 BasicCegarLoop]: 1453 mSDtfsCounter, 64 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 3963 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 672 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:43,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 3963 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1263 Invalid, 0 Unknown, 672 Unchecked, 0.7s Time] [2022-01-10 07:20:43,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2022-01-10 07:20:43,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2022-01-10 07:20:43,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1050 states have (on average 1.4142857142857144) internal successors, (1485), 1078 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1485 transitions. [2022-01-10 07:20:43,226 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1485 transitions. Word has length 108 [2022-01-10 07:20:43,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:43,226 INFO L470 AbstractCegarLoop]: Abstraction has 1079 states and 1485 transitions. [2022-01-10 07:20:43,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:43,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1485 transitions. [2022-01-10 07:20:43,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 07:20:43,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:43,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:43,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:43,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:43,437 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:43,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:43,437 INFO L85 PathProgramCache]: Analyzing trace with hash -286730842, now seen corresponding path program 1 times [2022-01-10 07:20:43,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:43,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775011673] [2022-01-10 07:20:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:43,438 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:43,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:43,438 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:43,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-01-10 07:20:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:43,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:43,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:44,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:44,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:44,754 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:44,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775011673] [2022-01-10 07:20:44,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775011673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:44,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:44,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:44,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895845800] [2022-01-10 07:20:44,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:44,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:44,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:44,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:44,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:44,755 INFO L87 Difference]: Start difference. First operand 1079 states and 1485 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:44,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:44,784 INFO L93 Difference]: Finished difference Result 1213 states and 1687 transitions. [2022-01-10 07:20:44,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 07:20:44,790 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 07:20:44,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:44,803 INFO L225 Difference]: With dead ends: 1213 [2022-01-10 07:20:44,803 INFO L226 Difference]: Without dead ends: 1079 [2022-01-10 07:20:44,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:44,804 INFO L933 BasicCegarLoop]: 1449 mSDtfsCounter, 72 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 3990 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1297 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:44,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 3990 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 1297 Unchecked, 0.0s Time] [2022-01-10 07:20:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2022-01-10 07:20:44,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2022-01-10 07:20:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1050 states have (on average 1.4133333333333333) internal successors, (1484), 1078 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:44,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1484 transitions. [2022-01-10 07:20:44,820 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1484 transitions. Word has length 108 [2022-01-10 07:20:44,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:44,820 INFO L470 AbstractCegarLoop]: Abstraction has 1079 states and 1484 transitions. [2022-01-10 07:20:44,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:44,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1484 transitions. [2022-01-10 07:20:44,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 07:20:44,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:44,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:44,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-01-10 07:20:45,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:45,031 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:45,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:45,031 INFO L85 PathProgramCache]: Analyzing trace with hash 599824408, now seen corresponding path program 1 times [2022-01-10 07:20:45,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:45,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077501655] [2022-01-10 07:20:45,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:45,032 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:45,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:45,032 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:45,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-01-10 07:20:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:45,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:45,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:46,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:46,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:46,293 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:46,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077501655] [2022-01-10 07:20:46,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077501655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:46,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:46,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:46,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611148623] [2022-01-10 07:20:46,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:46,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:46,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:46,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:46,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:46,294 INFO L87 Difference]: Start difference. First operand 1079 states and 1484 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:46,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:46,778 INFO L93 Difference]: Finished difference Result 1206 states and 1680 transitions. [2022-01-10 07:20:46,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:46,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 07:20:46,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:46,780 INFO L225 Difference]: With dead ends: 1206 [2022-01-10 07:20:46,781 INFO L226 Difference]: Without dead ends: 1079 [2022-01-10 07:20:46,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:20:46,781 INFO L933 BasicCegarLoop]: 1447 mSDtfsCounter, 92 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:46,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 2471 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 623 Invalid, 0 Unknown, 49 Unchecked, 0.4s Time] [2022-01-10 07:20:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2022-01-10 07:20:46,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2022-01-10 07:20:46,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1050 states have (on average 1.4123809523809523) internal successors, (1483), 1078 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:46,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1483 transitions. [2022-01-10 07:20:46,793 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1483 transitions. Word has length 108 [2022-01-10 07:20:46,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:46,794 INFO L470 AbstractCegarLoop]: Abstraction has 1079 states and 1483 transitions. [2022-01-10 07:20:46,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:46,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1483 transitions. [2022-01-10 07:20:46,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 07:20:46,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:46,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:46,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:47,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:47,005 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:47,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:47,005 INFO L85 PathProgramCache]: Analyzing trace with hash 162896375, now seen corresponding path program 1 times [2022-01-10 07:20:47,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:47,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877551558] [2022-01-10 07:20:47,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:47,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:47,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:47,007 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:47,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-01-10 07:20:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:47,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:47,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:48,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:48,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:48,333 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:48,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877551558] [2022-01-10 07:20:48,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877551558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:48,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:48,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:48,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098086478] [2022-01-10 07:20:48,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:48,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:48,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:48,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:48,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:48,334 INFO L87 Difference]: Start difference. First operand 1079 states and 1483 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:48,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:48,853 INFO L93 Difference]: Finished difference Result 1434 states and 1974 transitions. [2022-01-10 07:20:48,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:48,853 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-10 07:20:48,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:48,855 INFO L225 Difference]: With dead ends: 1434 [2022-01-10 07:20:48,855 INFO L226 Difference]: Without dead ends: 1079 [2022-01-10 07:20:48,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:20:48,856 INFO L933 BasicCegarLoop]: 1454 mSDtfsCounter, 63 mSDsluCounter, 4771 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 6225 SdHoareTripleChecker+Invalid, 3196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2561 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:48,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 6225 Invalid, 3196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 634 Invalid, 0 Unknown, 2561 Unchecked, 0.5s Time] [2022-01-10 07:20:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2022-01-10 07:20:48,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1075. [2022-01-10 07:20:48,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1046 states have (on average 1.4130019120458892) internal successors, (1478), 1074 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:48,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1478 transitions. [2022-01-10 07:20:48,866 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1478 transitions. Word has length 109 [2022-01-10 07:20:48,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:48,867 INFO L470 AbstractCegarLoop]: Abstraction has 1075 states and 1478 transitions. [2022-01-10 07:20:48,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:48,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1478 transitions. [2022-01-10 07:20:48,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 07:20:48,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:48,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:48,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-01-10 07:20:49,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:49,077 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:49,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1007860577, now seen corresponding path program 1 times [2022-01-10 07:20:49,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:49,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645167611] [2022-01-10 07:20:49,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:49,078 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:49,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:49,079 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:49,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-01-10 07:20:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:49,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:49,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:50,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:50,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:50,329 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:50,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645167611] [2022-01-10 07:20:50,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645167611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:50,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:50,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:50,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182068435] [2022-01-10 07:20:50,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:50,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:50,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:50,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:50,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:50,330 INFO L87 Difference]: Start difference. First operand 1075 states and 1478 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:50,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:50,822 INFO L93 Difference]: Finished difference Result 1185 states and 1644 transitions. [2022-01-10 07:20:50,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:50,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 07:20:50,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:50,824 INFO L225 Difference]: With dead ends: 1185 [2022-01-10 07:20:50,824 INFO L226 Difference]: Without dead ends: 1076 [2022-01-10 07:20:50,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:20:50,825 INFO L933 BasicCegarLoop]: 1441 mSDtfsCounter, 80 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 5463 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2527 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:50,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 5463 Invalid, 3145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 617 Invalid, 0 Unknown, 2527 Unchecked, 0.4s Time] [2022-01-10 07:20:50,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-01-10 07:20:50,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1075. [2022-01-10 07:20:50,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1046 states have (on average 1.4120458891013383) internal successors, (1477), 1074 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:50,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1477 transitions. [2022-01-10 07:20:50,836 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1477 transitions. Word has length 110 [2022-01-10 07:20:50,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:50,836 INFO L470 AbstractCegarLoop]: Abstraction has 1075 states and 1477 transitions. [2022-01-10 07:20:50,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1477 transitions. [2022-01-10 07:20:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 07:20:50,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:50,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:50,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-01-10 07:20:51,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:51,045 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-01-10 07:20:51,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:51,045 INFO L85 PathProgramCache]: Analyzing trace with hash 440183832, now seen corresponding path program 1 times [2022-01-10 07:20:51,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:51,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632348084] [2022-01-10 07:20:51,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:51,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:51,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:51,048 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:51,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-01-10 07:20:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:51,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:51,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:20:52,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:52,253 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:52,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632348084] [2022-01-10 07:20:52,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632348084] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:52,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:52,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:52,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525734448] [2022-01-10 07:20:52,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:52,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:52,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:52,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:52,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:52,254 INFO L87 Difference]: Start difference. First operand 1075 states and 1477 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:52,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:52,717 INFO L93 Difference]: Finished difference Result 1223 states and 1690 transitions. [2022-01-10 07:20:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:52,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 07:20:52,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:52,719 INFO L225 Difference]: With dead ends: 1223 [2022-01-10 07:20:52,719 INFO L226 Difference]: Without dead ends: 1075 [2022-01-10 07:20:52,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:20:52,720 INFO L933 BasicCegarLoop]: 1444 mSDtfsCounter, 90 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 2468 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:52,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 2468 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 620 Invalid, 0 Unknown, 49 Unchecked, 0.4s Time] [2022-01-10 07:20:52,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2022-01-10 07:20:52,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1075. [2022-01-10 07:20:52,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1046 states have (on average 1.4110898661567877) internal successors, (1476), 1074 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:52,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1476 transitions. [2022-01-10 07:20:52,732 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1476 transitions. Word has length 110 [2022-01-10 07:20:52,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:52,732 INFO L470 AbstractCegarLoop]: Abstraction has 1075 states and 1476 transitions. [2022-01-10 07:20:52,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:20:52,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1476 transitions. [2022-01-10 07:20:52,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 07:20:52,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:52,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:20:52,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0