/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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 07:18:57,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 07:18:57,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 07:18:57,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 07:18:57,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 07:18:57,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 07:18:57,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 07:18:57,704 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 07:18:57,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 07:18:57,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 07:18:57,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 07:18:57,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 07:18:57,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 07:18:57,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 07:18:57,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 07:18:57,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 07:18:57,723 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 07:18:57,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 07:18:57,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 07:18:57,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 07:18:57,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 07:18:57,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 07:18:57,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 07:18:57,724 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 07:18:57,724 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 07:18:57,725 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 07:18:57,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 07:18:57,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 07:18:57,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 07:18:57,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 07:18:57,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 07:18:57,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:18:57,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 07:18:57,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 07:18:57,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 07:18:57,726 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 07:18:57,726 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 07:18:57,726 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 07:18:57,726 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 07:18:57,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 07:18:57,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 07:18:57,726 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 07:18:57,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 07:18:57,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 07:18:57,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 07:18:57,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 07:18:57,919 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 07:18:57,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 07:18:57,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439bd6030/720b704b7de949d29a62fb2a3d5f5581/FLAG2a229a8e1 [2022-01-10 07:18:58,437 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 07:18:58,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 07:18:58,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439bd6030/720b704b7de949d29a62fb2a3d5f5581/FLAG2a229a8e1 [2022-01-10 07:18:58,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439bd6030/720b704b7de949d29a62fb2a3d5f5581 [2022-01-10 07:18:58,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 07:18:58,719 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 07:18:58,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 07:18:58,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 07:18:58,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 07:18:58,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:18:58" (1/1) ... [2022-01-10 07:18:58,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618b2f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:18:58, skipping insertion in model container [2022-01-10 07:18:58,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:18:58" (1/1) ... [2022-01-10 07:18:58,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 07:18:58,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 07:18:59,186 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13531,13544] [2022-01-10 07:18:59,202 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18011,18024] [2022-01-10 07:18:59,214 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19303,19316] [2022-01-10 07:18:59,218 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20061,20074] [2022-01-10 07:18:59,224 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21681,21694] [2022-01-10 07:18:59,229 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22439,22452] [2022-01-10 07:18:59,234 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23525,23538] [2022-01-10 07:18:59,247 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26064,26077] [2022-01-10 07:18:59,251 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26825,26838] [2022-01-10 07:18:59,264 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27914,27927] [2022-01-10 07:18:59,271 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29919,29932] [2022-01-10 07:18:59,292 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33842,33855] [2022-01-10 07:18:59,295 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34603,34616] [2022-01-10 07:18:59,299 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35696,35709] [2022-01-10 07:18:59,310 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37705,37718] [2022-01-10 07:18:59,323 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41308,41321] [2022-01-10 07:18:59,346 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48185,48198] [2022-01-10 07:18:59,349 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48946,48959] [2022-01-10 07:18:59,353 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[50035,50048] [2022-01-10 07:18:59,359 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52040,52053] [2022-01-10 07:18:59,368 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55429,55442] [2022-01-10 07:18:59,383 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61126,61139] [2022-01-10 07:18:59,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:18:59,683 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 07:18:59,764 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13531,13544] [2022-01-10 07:18:59,782 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18011,18024] [2022-01-10 07:18:59,788 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19303,19316] [2022-01-10 07:18:59,791 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20061,20074] [2022-01-10 07:18:59,795 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21681,21694] [2022-01-10 07:18:59,798 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22439,22452] [2022-01-10 07:18:59,801 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23525,23538] [2022-01-10 07:18:59,809 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26064,26077] [2022-01-10 07:18:59,812 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26825,26838] [2022-01-10 07:18:59,816 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27914,27927] [2022-01-10 07:18:59,827 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29919,29932] [2022-01-10 07:18:59,841 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33842,33855] [2022-01-10 07:18:59,845 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34603,34616] [2022-01-10 07:18:59,848 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35696,35709] [2022-01-10 07:18:59,854 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37705,37718] [2022-01-10 07:18:59,864 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41308,41321] [2022-01-10 07:18:59,882 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48185,48198] [2022-01-10 07:18:59,885 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48946,48959] [2022-01-10 07:18:59,888 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[50035,50048] [2022-01-10 07:18:59,894 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52040,52053] [2022-01-10 07:18:59,911 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55429,55442] [2022-01-10 07:18:59,923 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61126,61139] [2022-01-10 07:19:00,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:19:00,138 INFO L208 MainTranslator]: Completed translation [2022-01-10 07:19:00,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00 WrapperNode [2022-01-10 07:19:00,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 07:19:00,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 07:19:00,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 07:19:00,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 07:19:00,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (1/1) ... [2022-01-10 07:19:00,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (1/1) ... [2022-01-10 07:19:00,270 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6304 [2022-01-10 07:19:00,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 07:19:00,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 07:19:00,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 07:19:00,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 07:19:00,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (1/1) ... [2022-01-10 07:19:00,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (1/1) ... [2022-01-10 07:19:00,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (1/1) ... [2022-01-10 07:19:00,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (1/1) ... [2022-01-10 07:19:00,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (1/1) ... [2022-01-10 07:19:00,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (1/1) ... [2022-01-10 07:19:00,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (1/1) ... [2022-01-10 07:19:00,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 07:19:00,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 07:19:00,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 07:19:00,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 07:19:00,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (1/1) ... [2022-01-10 07:19:00,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:19:00,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 07:19:00,463 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 07:19:00,476 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 07:19:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 07:19:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 07:19:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 07:19:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 07:19:00,766 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 07:19:00,767 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 07:19:04,177 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 07:19:04,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 07:19:04,188 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 07:19:04,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:19:04 BoogieIcfgContainer [2022-01-10 07:19:04,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 07:19:04,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 07:19:04,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 07:19:04,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 07:19:04,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:18:58" (1/3) ... [2022-01-10 07:19:04,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb515ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:19:04, skipping insertion in model container [2022-01-10 07:19:04,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:19:00" (2/3) ... [2022-01-10 07:19:04,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb515ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:19:04, skipping insertion in model container [2022-01-10 07:19:04,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:19:04" (3/3) ... [2022-01-10 07:19:04,197 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 07:19:04,200 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 07:19:04,200 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-01-10 07:19:04,235 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 07:19:04,239 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 07:19:04,239 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-01-10 07:19:04,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 1124 states, 1101 states have (on average 1.8601271571298819) internal successors, (2048), 1123 states have internal predecessors, (2048), 0 states have call successors, (0), 0 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 07:19:04,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-10 07:19:04,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:04,273 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] [2022-01-10 07:19:04,273 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:04,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:04,277 INFO L85 PathProgramCache]: Analyzing trace with hash -845723877, now seen corresponding path program 1 times [2022-01-10 07:19:04,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:04,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100709836] [2022-01-10 07:19:04,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:04,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:04,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:04,289 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 07:19:04,290 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 07:19:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:04,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:19:04,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:05,201 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 07:19:05,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:05,202 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:05,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100709836] [2022-01-10 07:19:05,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100709836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:05,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:05,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:19:05,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089403435] [2022-01-10 07:19:05,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:05,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:19:05,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:05,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:19:05,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:19:05,239 INFO L87 Difference]: Start difference. First operand has 1124 states, 1101 states have (on average 1.8601271571298819) internal successors, (2048), 1123 states have internal predecessors, (2048), 0 states have call successors, (0), 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 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:19:05,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:05,903 INFO L93 Difference]: Finished difference Result 1708 states and 3002 transitions. [2022-01-10 07:19:05,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:19:05,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-10 07:19:05,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:05,917 INFO L225 Difference]: With dead ends: 1708 [2022-01-10 07:19:05,917 INFO L226 Difference]: Without dead ends: 868 [2022-01-10 07:19:05,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:19:05,934 INFO L933 BasicCegarLoop]: 1517 mSDtfsCounter, 109 mSDsluCounter, 2895 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 4412 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 492 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:05,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 4412 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 486 Invalid, 0 Unknown, 492 Unchecked, 0.5s Time] [2022-01-10 07:19:05,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2022-01-10 07:19:06,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2022-01-10 07:19:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 846 states have (on average 1.322695035460993) internal successors, (1119), 867 states have internal predecessors, (1119), 0 states have call successors, (0), 0 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 07:19:06,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1119 transitions. [2022-01-10 07:19:06,039 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1119 transitions. Word has length 85 [2022-01-10 07:19:06,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:06,040 INFO L470 AbstractCegarLoop]: Abstraction has 868 states and 1119 transitions. [2022-01-10 07:19:06,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:19:06,040 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1119 transitions. [2022-01-10 07:19:06,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-10 07:19:06,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:06,044 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] [2022-01-10 07:19:06,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 07:19:06,254 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 07:19:06,255 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:06,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:06,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1932230466, now seen corresponding path program 1 times [2022-01-10 07:19:06,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:06,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522088961] [2022-01-10 07:19:06,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:06,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:06,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:06,258 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 07:19:06,260 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 07:19:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:06,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:19:06,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:06,840 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 07:19:06,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:06,841 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:06,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522088961] [2022-01-10 07:19:06,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522088961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:06,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:06,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:19:06,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359918982] [2022-01-10 07:19:06,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:06,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:19:06,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:06,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:19:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:19:06,843 INFO L87 Difference]: Start difference. First operand 868 states and 1119 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:19:07,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:07,397 INFO L93 Difference]: Finished difference Result 1437 states and 1908 transitions. [2022-01-10 07:19:07,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:19:07,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-10 07:19:07,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:07,401 INFO L225 Difference]: With dead ends: 1437 [2022-01-10 07:19:07,401 INFO L226 Difference]: Without dead ends: 743 [2022-01-10 07:19:07,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 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 07:19:07,404 INFO L933 BasicCegarLoop]: 972 mSDtfsCounter, 32 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 409 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:07,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 2588 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 802 Invalid, 0 Unknown, 409 Unchecked, 0.5s Time] [2022-01-10 07:19:07,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-01-10 07:19:07,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 743. [2022-01-10 07:19:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 721 states have (on average 1.3564493758668517) internal successors, (978), 742 states have internal predecessors, (978), 0 states have call successors, (0), 0 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 07:19:07,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 978 transitions. [2022-01-10 07:19:07,439 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 978 transitions. Word has length 86 [2022-01-10 07:19:07,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:07,439 INFO L470 AbstractCegarLoop]: Abstraction has 743 states and 978 transitions. [2022-01-10 07:19:07,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:19:07,439 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 978 transitions. [2022-01-10 07:19:07,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-10 07:19:07,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:07,441 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] [2022-01-10 07:19:07,456 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 07:19:07,655 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 07:19:07,656 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:07,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:07,656 INFO L85 PathProgramCache]: Analyzing trace with hash -848687014, now seen corresponding path program 1 times [2022-01-10 07:19:07,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:07,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094237777] [2022-01-10 07:19:07,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:07,657 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:07,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:07,658 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 07:19:07,659 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 07:19:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:07,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:19:07,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:08,259 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 07:19:08,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:08,260 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:08,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094237777] [2022-01-10 07:19:08,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094237777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:08,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:08,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:19:08,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435103983] [2022-01-10 07:19:08,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:08,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:19:08,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:08,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:19:08,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:19:08,261 INFO L87 Difference]: Start difference. First operand 743 states and 978 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:19:08,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:08,602 INFO L93 Difference]: Finished difference Result 1312 states and 1767 transitions. [2022-01-10 07:19:08,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:19:08,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-10 07:19:08,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:08,605 INFO L225 Difference]: With dead ends: 1312 [2022-01-10 07:19:08,605 INFO L226 Difference]: Without dead ends: 682 [2022-01-10 07:19:08,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 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 07:19:08,607 INFO L933 BasicCegarLoop]: 901 mSDtfsCounter, 48 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:08,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 1420 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 373 Invalid, 0 Unknown, 13 Unchecked, 0.3s Time] [2022-01-10 07:19:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-01-10 07:19:08,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 682. [2022-01-10 07:19:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 660 states have (on average 1.3772727272727272) internal successors, (909), 681 states have internal predecessors, (909), 0 states have call successors, (0), 0 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 07:19:08,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 909 transitions. [2022-01-10 07:19:08,633 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 909 transitions. Word has length 87 [2022-01-10 07:19:08,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:08,633 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 909 transitions. [2022-01-10 07:19:08,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:19:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 909 transitions. [2022-01-10 07:19:08,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 07:19:08,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:08,635 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] [2022-01-10 07:19:08,645 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 07:19:08,843 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 07:19:08,843 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:08,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:08,844 INFO L85 PathProgramCache]: Analyzing trace with hash -957672547, now seen corresponding path program 1 times [2022-01-10 07:19:08,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:08,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186774736] [2022-01-10 07:19:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:08,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:08,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:08,846 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 07:19:08,847 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 07:19:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:09,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:19:09,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:09,443 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 07:19:09,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:09,444 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:09,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186774736] [2022-01-10 07:19:09,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186774736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:09,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:09,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:19:09,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928853652] [2022-01-10 07:19:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:09,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:19:09,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:09,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:19:09,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:19:09,446 INFO L87 Difference]: Start difference. First operand 682 states and 909 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 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 07:19:09,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:09,479 INFO L93 Difference]: Finished difference Result 1251 states and 1698 transitions. [2022-01-10 07:19:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:19:09,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-10 07:19:09,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:09,481 INFO L225 Difference]: With dead ends: 1251 [2022-01-10 07:19:09,481 INFO L226 Difference]: Without dead ends: 653 [2022-01-10 07:19:09,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 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 07:19:09,483 INFO L933 BasicCegarLoop]: 866 mSDtfsCounter, 42 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 383 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:09,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 1814 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 383 Unchecked, 0.0s Time] [2022-01-10 07:19:09,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-01-10 07:19:09,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 653. [2022-01-10 07:19:09,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.388272583201268) internal successors, (876), 652 states have internal predecessors, (876), 0 states have call successors, (0), 0 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 07:19:09,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 876 transitions. [2022-01-10 07:19:09,493 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 876 transitions. Word has length 88 [2022-01-10 07:19:09,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:09,493 INFO L470 AbstractCegarLoop]: Abstraction has 653 states and 876 transitions. [2022-01-10 07:19:09,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 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 07:19:09,494 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 876 transitions. [2022-01-10 07:19:09,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 07:19:09,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:09,495 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] [2022-01-10 07:19:09,513 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 07:19:09,711 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 07:19:09,712 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:09,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:09,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1756330343, now seen corresponding path program 1 times [2022-01-10 07:19:09,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:09,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047048894] [2022-01-10 07:19:09,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:09,713 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:09,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:09,714 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 07:19:09,715 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 07:19:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:09,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:19:09,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:10,295 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 07:19:10,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:10,296 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:10,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047048894] [2022-01-10 07:19:10,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047048894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:10,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:10,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:19:10,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347949516] [2022-01-10 07:19:10,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:10,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:19:10,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:10,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:19:10,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:19:10,297 INFO L87 Difference]: Start difference. First operand 653 states and 876 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:19:10,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:10,644 INFO L93 Difference]: Finished difference Result 1222 states and 1665 transitions. [2022-01-10 07:19:10,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:19:10,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-01-10 07:19:10,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:10,650 INFO L225 Difference]: With dead ends: 1222 [2022-01-10 07:19:10,650 INFO L226 Difference]: Without dead ends: 640 [2022-01-10 07:19:10,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 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 07:19:10,652 INFO L933 BasicCegarLoop]: 849 mSDtfsCounter, 36 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 387 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:10,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 1782 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 355 Invalid, 0 Unknown, 387 Unchecked, 0.3s Time] [2022-01-10 07:19:10,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-01-10 07:19:10,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2022-01-10 07:19:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 618 states have (on average 1.3932038834951457) internal successors, (861), 639 states have internal predecessors, (861), 0 states have call successors, (0), 0 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 07:19:10,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 861 transitions. [2022-01-10 07:19:10,661 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 861 transitions. Word has length 89 [2022-01-10 07:19:10,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:10,662 INFO L470 AbstractCegarLoop]: Abstraction has 640 states and 861 transitions. [2022-01-10 07:19:10,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:19:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 861 transitions. [2022-01-10 07:19:10,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 07:19:10,663 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:10,663 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] [2022-01-10 07:19:10,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-01-10 07:19:10,871 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 07:19:10,873 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:10,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:10,873 INFO L85 PathProgramCache]: Analyzing trace with hash -593456260, now seen corresponding path program 1 times [2022-01-10 07:19:10,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:10,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407946761] [2022-01-10 07:19:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:10,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:10,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:10,875 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 07:19:10,877 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 07:19:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:11,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:19:11,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:11,413 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 07:19:11,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:11,413 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:11,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407946761] [2022-01-10 07:19:11,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407946761] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:11,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:11,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:19:11,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928701495] [2022-01-10 07:19:11,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:11,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:19:11,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:11,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:19:11,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:19:11,415 INFO L87 Difference]: Start difference. First operand 640 states and 861 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:19:11,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:11,852 INFO L93 Difference]: Finished difference Result 1209 states and 1650 transitions. [2022-01-10 07:19:11,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:19:11,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-01-10 07:19:11,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:11,855 INFO L225 Difference]: With dead ends: 1209 [2022-01-10 07:19:11,855 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:11,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 86 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 07:19:11,857 INFO L933 BasicCegarLoop]: 841 mSDtfsCounter, 20 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 402 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:11,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 2056 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 462 Invalid, 0 Unknown, 402 Unchecked, 0.4s Time] [2022-01-10 07:19:11,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:11,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.394779771615008) internal successors, (855), 634 states have internal predecessors, (855), 0 states have call successors, (0), 0 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 07:19:11,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 855 transitions. [2022-01-10 07:19:11,866 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 855 transitions. Word has length 90 [2022-01-10 07:19:11,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:11,867 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 855 transitions. [2022-01-10 07:19:11,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:19:11,867 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 855 transitions. [2022-01-10 07:19:11,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 07:19:11,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:11,868 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] [2022-01-10 07:19:11,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:12,078 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 07:19:12,078 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:12,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:12,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1183984296, now seen corresponding path program 1 times [2022-01-10 07:19:12,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:12,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900392467] [2022-01-10 07:19:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:12,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:12,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:12,081 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 07:19:12,082 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 07:19:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:12,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 07:19:12,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:12,754 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 07:19:12,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:12,754 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:12,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900392467] [2022-01-10 07:19:12,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900392467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:12,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:12,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 07:19:12,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495803528] [2022-01-10 07:19:12,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:12,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 07:19:12,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:12,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 07:19:12,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-10 07:19:12,756 INFO L87 Difference]: Start difference. First operand 635 states and 855 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 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 07:19:13,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:13,044 INFO L93 Difference]: Finished difference Result 980 states and 1326 transitions. [2022-01-10 07:19:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 07:19:13,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-10 07:19:13,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:13,046 INFO L225 Difference]: With dead ends: 980 [2022-01-10 07:19:13,046 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:13,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 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 07:19:13,047 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 36 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:13,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 1438 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 347 Invalid, 0 Unknown, 28 Unchecked, 0.3s Time] [2022-01-10 07:19:13,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:13,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:13,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3931484502446982) internal successors, (854), 634 states have internal predecessors, (854), 0 states have call successors, (0), 0 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 07:19:13,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 854 transitions. [2022-01-10 07:19:13,057 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 854 transitions. Word has length 91 [2022-01-10 07:19:13,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:13,057 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 854 transitions. [2022-01-10 07:19:13,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 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 07:19:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 854 transitions. [2022-01-10 07:19:13,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 07:19:13,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:13,058 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] [2022-01-10 07:19:13,069 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 07:19:13,269 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 07:19:13,271 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:13,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:13,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1428942257, now seen corresponding path program 1 times [2022-01-10 07:19:13,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:13,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634522492] [2022-01-10 07:19:13,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:13,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:13,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:13,273 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 07:19:13,274 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 07:19:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:13,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:13,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:14,334 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 07:19:14,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:14,334 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:14,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634522492] [2022-01-10 07:19:14,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634522492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:14,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:14,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:14,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719907445] [2022-01-10 07:19:14,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:14,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:14,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:14,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:14,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:14,336 INFO L87 Difference]: Start difference. First operand 635 states and 854 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 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 07:19:14,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:14,666 INFO L93 Difference]: Finished difference Result 827 states and 1132 transitions. [2022-01-10 07:19:14,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:14,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-10 07:19:14,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:14,668 INFO L225 Difference]: With dead ends: 827 [2022-01-10 07:19:14,669 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:14,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 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 07:19:14,670 INFO L933 BasicCegarLoop]: 831 mSDtfsCounter, 76 mSDsluCounter, 2359 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1404 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:14,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 3190 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 342 Invalid, 0 Unknown, 1404 Unchecked, 0.3s Time] [2022-01-10 07:19:14,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:14,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:14,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3915171288743882) internal successors, (853), 634 states have internal predecessors, (853), 0 states have call successors, (0), 0 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 07:19:14,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 853 transitions. [2022-01-10 07:19:14,681 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 853 transitions. Word has length 91 [2022-01-10 07:19:14,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:14,682 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 853 transitions. [2022-01-10 07:19:14,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 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 07:19:14,682 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 853 transitions. [2022-01-10 07:19:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 07:19:14,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:14,686 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] [2022-01-10 07:19:14,695 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 07:19:14,894 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 07:19:14,895 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:14,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:14,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1459275419, now seen corresponding path program 1 times [2022-01-10 07:19:14,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:14,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768008646] [2022-01-10 07:19:14,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:14,896 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:14,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:14,897 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 07:19:14,897 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 07:19:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:15,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:15,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:15,954 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 07:19:15,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:15,955 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:15,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768008646] [2022-01-10 07:19:15,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768008646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:15,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:15,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:15,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808394455] [2022-01-10 07:19:15,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:15,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:15,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:15,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:15,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:15,956 INFO L87 Difference]: Start difference. First operand 635 states and 853 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 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 07:19:16,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:16,408 INFO L93 Difference]: Finished difference Result 758 states and 1038 transitions. [2022-01-10 07:19:16,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:16,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-10 07:19:16,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:16,411 INFO L225 Difference]: With dead ends: 758 [2022-01-10 07:19:16,411 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:16,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 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 07:19:16,412 INFO L933 BasicCegarLoop]: 826 mSDtfsCounter, 60 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:16,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 1895 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 679 Invalid, 0 Unknown, 42 Unchecked, 0.4s Time] [2022-01-10 07:19:16,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:16,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:16,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3898858075040783) internal successors, (852), 634 states have internal predecessors, (852), 0 states have call successors, (0), 0 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 07:19:16,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 852 transitions. [2022-01-10 07:19:16,420 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 852 transitions. Word has length 91 [2022-01-10 07:19:16,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:16,420 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 852 transitions. [2022-01-10 07:19:16,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 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 07:19:16,420 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 852 transitions. [2022-01-10 07:19:16,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 07:19:16,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:16,422 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] [2022-01-10 07:19:16,447 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 07:19:16,627 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 07:19:16,628 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:16,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:16,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2136143015, now seen corresponding path program 1 times [2022-01-10 07:19:16,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:16,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502594519] [2022-01-10 07:19:16,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:16,629 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:16,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:16,630 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 07:19:16,637 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 07:19:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:16,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:16,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:17,627 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 07:19:17,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:17,628 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:17,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502594519] [2022-01-10 07:19:17,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502594519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:17,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:17,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:17,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164994731] [2022-01-10 07:19:17,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:17,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:17,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:17,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:17,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:17,629 INFO L87 Difference]: Start difference. First operand 635 states and 852 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:18,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:18,075 INFO L93 Difference]: Finished difference Result 857 states and 1157 transitions. [2022-01-10 07:19:18,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:18,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2022-01-10 07:19:18,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:18,078 INFO L225 Difference]: With dead ends: 857 [2022-01-10 07:19:18,078 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:18,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 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 07:19:18,078 INFO L933 BasicCegarLoop]: 829 mSDtfsCounter, 54 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 717 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:18,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 2752 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 682 Invalid, 0 Unknown, 717 Unchecked, 0.4s Time] [2022-01-10 07:19:18,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:18,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:18,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3882544861337685) internal successors, (851), 634 states have internal predecessors, (851), 0 states have call successors, (0), 0 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 07:19:18,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 851 transitions. [2022-01-10 07:19:18,086 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 851 transitions. Word has length 93 [2022-01-10 07:19:18,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:18,087 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 851 transitions. [2022-01-10 07:19:18,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:18,087 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 851 transitions. [2022-01-10 07:19:18,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 07:19:18,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:18,088 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] [2022-01-10 07:19:18,115 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 07:19:18,296 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 07:19:18,296 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:18,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:18,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2068984294, now seen corresponding path program 1 times [2022-01-10 07:19:18,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:18,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036866439] [2022-01-10 07:19:18,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:18,298 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:18,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:18,303 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 07:19:18,304 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 07:19:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:18,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:18,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:19,264 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 07:19:19,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:19,264 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:19,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036866439] [2022-01-10 07:19:19,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036866439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:19,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:19,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:19,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501886031] [2022-01-10 07:19:19,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:19,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:19,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:19,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:19,265 INFO L87 Difference]: Start difference. First operand 635 states and 851 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:19,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:19,580 INFO L93 Difference]: Finished difference Result 735 states and 1001 transitions. [2022-01-10 07:19:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:19,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2022-01-10 07:19:19,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:19,582 INFO L225 Difference]: With dead ends: 735 [2022-01-10 07:19:19,582 INFO L226 Difference]: Without dead ends: 636 [2022-01-10 07:19:19,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 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 07:19:19,583 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 54 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3594 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1373 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:19,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 3594 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 344 Invalid, 0 Unknown, 1373 Unchecked, 0.3s Time] [2022-01-10 07:19:19,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-01-10 07:19:19,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 635. [2022-01-10 07:19:19,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3866231647634584) internal successors, (850), 634 states have internal predecessors, (850), 0 states have call successors, (0), 0 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 07:19:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 850 transitions. [2022-01-10 07:19:19,591 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 850 transitions. Word has length 93 [2022-01-10 07:19:19,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:19,592 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 850 transitions. [2022-01-10 07:19:19,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:19,592 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 850 transitions. [2022-01-10 07:19:19,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 07:19:19,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:19,593 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] [2022-01-10 07:19:19,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:19,802 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 07:19:19,803 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:19,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:19,803 INFO L85 PathProgramCache]: Analyzing trace with hash 928092964, now seen corresponding path program 1 times [2022-01-10 07:19:19,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:19,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391760837] [2022-01-10 07:19:19,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:19,804 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:19,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:19,805 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 07:19:19,806 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 07:19:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:20,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:20,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:20,809 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 07:19:20,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:20,809 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:20,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391760837] [2022-01-10 07:19:20,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391760837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:20,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:20,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:20,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211946573] [2022-01-10 07:19:20,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:20,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:20,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:20,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:20,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:20,810 INFO L87 Difference]: Start difference. First operand 635 states and 850 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:21,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:21,108 INFO L93 Difference]: Finished difference Result 773 states and 1047 transitions. [2022-01-10 07:19:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:21,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2022-01-10 07:19:21,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:21,110 INFO L225 Difference]: With dead ends: 773 [2022-01-10 07:19:21,111 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:21,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 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 07:19:21,112 INFO L933 BasicCegarLoop]: 823 mSDtfsCounter, 77 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:21,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 1468 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 334 Invalid, 0 Unknown, 42 Unchecked, 0.3s Time] [2022-01-10 07:19:21,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:21,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3849918433931485) internal successors, (849), 634 states have internal predecessors, (849), 0 states have call successors, (0), 0 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 07:19:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 849 transitions. [2022-01-10 07:19:21,120 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 849 transitions. Word has length 93 [2022-01-10 07:19:21,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:21,121 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 849 transitions. [2022-01-10 07:19:21,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:21,121 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 849 transitions. [2022-01-10 07:19:21,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 07:19:21,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:21,122 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] [2022-01-10 07:19:21,137 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 07:19:21,330 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 07:19:21,330 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:21,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash 538302253, now seen corresponding path program 1 times [2022-01-10 07:19:21,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:21,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987917424] [2022-01-10 07:19:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:21,331 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:21,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:21,332 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 07:19:21,333 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 07:19:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:21,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:21,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:22,334 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 07:19:22,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:22,335 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:22,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987917424] [2022-01-10 07:19:22,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987917424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:22,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:22,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:22,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163038959] [2022-01-10 07:19:22,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:22,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:22,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:22,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:22,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:22,336 INFO L87 Difference]: Start difference. First operand 635 states and 849 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:22,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:22,770 INFO L93 Difference]: Finished difference Result 734 states and 999 transitions. [2022-01-10 07:19:22,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:22,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2022-01-10 07:19:22,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:22,773 INFO L225 Difference]: With dead ends: 734 [2022-01-10 07:19:22,773 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:22,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 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 07:19:22,776 INFO L933 BasicCegarLoop]: 818 mSDtfsCounter, 51 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 374 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:22,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 2307 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 669 Invalid, 0 Unknown, 374 Unchecked, 0.4s Time] [2022-01-10 07:19:22,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:22,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:22,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3833605220228384) internal successors, (848), 634 states have internal predecessors, (848), 0 states have call successors, (0), 0 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 07:19:22,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 848 transitions. [2022-01-10 07:19:22,795 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 848 transitions. Word has length 93 [2022-01-10 07:19:22,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:22,795 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 848 transitions. [2022-01-10 07:19:22,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:22,796 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 848 transitions. [2022-01-10 07:19:22,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 07:19:22,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:22,802 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] [2022-01-10 07:19:22,821 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 07:19:23,010 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 07:19:23,010 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:23,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:23,011 INFO L85 PathProgramCache]: Analyzing trace with hash -350742557, now seen corresponding path program 1 times [2022-01-10 07:19:23,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:23,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870715900] [2022-01-10 07:19:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:23,011 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:23,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:23,012 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 07:19:23,013 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 07:19:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:23,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:23,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:23,982 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 07:19:23,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:23,982 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:23,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870715900] [2022-01-10 07:19:23,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870715900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:23,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:23,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:23,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734949417] [2022-01-10 07:19:23,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:23,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:23,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:23,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:23,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:23,983 INFO L87 Difference]: Start difference. First operand 635 states and 848 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:24,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:24,251 INFO L93 Difference]: Finished difference Result 773 states and 1048 transitions. [2022-01-10 07:19:24,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:24,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2022-01-10 07:19:24,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:24,254 INFO L225 Difference]: With dead ends: 773 [2022-01-10 07:19:24,254 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:24,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 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 07:19:24,254 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 77 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 706 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:24,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 2324 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 332 Invalid, 0 Unknown, 706 Unchecked, 0.2s Time] [2022-01-10 07:19:24,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:24,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:24,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3817292006525286) internal successors, (847), 634 states have internal predecessors, (847), 0 states have call successors, (0), 0 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 07:19:24,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 847 transitions. [2022-01-10 07:19:24,263 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 847 transitions. Word has length 93 [2022-01-10 07:19:24,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:24,263 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 847 transitions. [2022-01-10 07:19:24,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:24,263 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 847 transitions. [2022-01-10 07:19:24,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 07:19:24,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:24,265 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] [2022-01-10 07:19:24,281 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 07:19:24,473 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 07:19:24,474 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:24,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1779757049, now seen corresponding path program 1 times [2022-01-10 07:19:24,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:24,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272910965] [2022-01-10 07:19:24,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:24,475 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:24,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:24,476 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 07:19:24,477 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 07:19:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:24,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:24,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:25,445 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 07:19:25,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:25,445 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:25,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272910965] [2022-01-10 07:19:25,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272910965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:25,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:25,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:25,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520858530] [2022-01-10 07:19:25,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:25,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:25,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:25,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:25,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:25,447 INFO L87 Difference]: Start difference. First operand 635 states and 847 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:25,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:25,895 INFO L93 Difference]: Finished difference Result 728 states and 991 transitions. [2022-01-10 07:19:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:25,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2022-01-10 07:19:25,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:25,899 INFO L225 Difference]: With dead ends: 728 [2022-01-10 07:19:25,899 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:25,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 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 07:19:25,900 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 63 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1030 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:25,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 3166 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 665 Invalid, 0 Unknown, 1030 Unchecked, 0.4s Time] [2022-01-10 07:19:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:25,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:25,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3800978792822185) internal successors, (846), 634 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 07:19:25,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 846 transitions. [2022-01-10 07:19:25,909 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 846 transitions. Word has length 93 [2022-01-10 07:19:25,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:25,909 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 846 transitions. [2022-01-10 07:19:25,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:25,910 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 846 transitions. [2022-01-10 07:19:25,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 07:19:25,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:25,911 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] [2022-01-10 07:19:25,922 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 07:19:26,118 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 07:19:26,119 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:26,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:26,119 INFO L85 PathProgramCache]: Analyzing trace with hash 162924990, now seen corresponding path program 1 times [2022-01-10 07:19:26,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:26,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833712678] [2022-01-10 07:19:26,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:26,120 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:26,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:26,121 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 07:19:26,122 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 07:19:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:26,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:26,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:27,080 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 07:19:27,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:27,081 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:27,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833712678] [2022-01-10 07:19:27,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833712678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:27,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:27,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:27,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181292029] [2022-01-10 07:19:27,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:27,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:27,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:27,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:27,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:27,083 INFO L87 Difference]: Start difference. First operand 635 states and 846 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:27,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:27,445 INFO L93 Difference]: Finished difference Result 734 states and 995 transitions. [2022-01-10 07:19:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:27,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2022-01-10 07:19:27,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:27,450 INFO L225 Difference]: With dead ends: 734 [2022-01-10 07:19:27,451 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:27,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 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 07:19:27,452 INFO L933 BasicCegarLoop]: 815 mSDtfsCounter, 61 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 374 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:27,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 2310 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 374 Unchecked, 0.3s Time] [2022-01-10 07:19:27,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:27,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:27,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3784665579119086) internal successors, (845), 634 states have internal predecessors, (845), 0 states have call successors, (0), 0 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 07:19:27,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 845 transitions. [2022-01-10 07:19:27,462 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 845 transitions. Word has length 93 [2022-01-10 07:19:27,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:27,462 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 845 transitions. [2022-01-10 07:19:27,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 07:19:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 845 transitions. [2022-01-10 07:19:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:27,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:27,464 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] [2022-01-10 07:19:27,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:27,675 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 07:19:27,676 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:27,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:27,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1878690134, now seen corresponding path program 1 times [2022-01-10 07:19:27,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:27,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170795432] [2022-01-10 07:19:27,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:27,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:27,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:27,677 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 07:19:27,678 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 07:19:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:27,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:27,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:28,572 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 07:19:28,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:28,572 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:28,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170795432] [2022-01-10 07:19:28,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170795432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:28,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:28,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:28,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120877843] [2022-01-10 07:19:28,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:28,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:28,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:28,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:28,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:28,574 INFO L87 Difference]: Start difference. First operand 635 states and 845 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:28,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:28,954 INFO L93 Difference]: Finished difference Result 744 states and 1004 transitions. [2022-01-10 07:19:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:28,955 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:28,957 INFO L225 Difference]: With dead ends: 744 [2022-01-10 07:19:28,957 INFO L226 Difference]: Without dead ends: 636 [2022-01-10 07:19:28,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:28,958 INFO L933 BasicCegarLoop]: 814 mSDtfsCounter, 49 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1021 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:28,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 3167 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 661 Invalid, 0 Unknown, 1021 Unchecked, 0.3s Time] [2022-01-10 07:19:28,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-01-10 07:19:28,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 635. [2022-01-10 07:19:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3768352365415988) internal successors, (844), 634 states have internal predecessors, (844), 0 states have call successors, (0), 0 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 07:19:28,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 844 transitions. [2022-01-10 07:19:28,966 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 844 transitions. Word has length 95 [2022-01-10 07:19:28,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:28,966 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 844 transitions. [2022-01-10 07:19:28,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 844 transitions. [2022-01-10 07:19:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:28,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:28,967 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] [2022-01-10 07:19:28,980 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 07:19:29,174 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 07:19:29,175 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:29,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:29,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1469844906, now seen corresponding path program 1 times [2022-01-10 07:19:29,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:29,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743854814] [2022-01-10 07:19:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:29,176 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:29,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:29,177 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 07:19:29,179 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 07:19:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:29,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:29,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:30,204 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 07:19:30,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:30,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:30,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743854814] [2022-01-10 07:19:30,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743854814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:30,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:30,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:30,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318115198] [2022-01-10 07:19:30,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:30,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:30,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:30,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:30,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:30,206 INFO L87 Difference]: Start difference. First operand 635 states and 844 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:30,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:30,599 INFO L93 Difference]: Finished difference Result 722 states and 976 transitions. [2022-01-10 07:19:30,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:30,600 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:30,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:30,602 INFO L225 Difference]: With dead ends: 722 [2022-01-10 07:19:30,602 INFO L226 Difference]: Without dead ends: 636 [2022-01-10 07:19:30,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:30,602 INFO L933 BasicCegarLoop]: 809 mSDtfsCounter, 64 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1018 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:30,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 3146 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 663 Invalid, 0 Unknown, 1018 Unchecked, 0.4s Time] [2022-01-10 07:19:30,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-01-10 07:19:30,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 635. [2022-01-10 07:19:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3752039151712887) internal successors, (843), 634 states have internal predecessors, (843), 0 states have call successors, (0), 0 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 07:19:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 843 transitions. [2022-01-10 07:19:30,610 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 843 transitions. Word has length 95 [2022-01-10 07:19:30,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:30,610 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 843 transitions. [2022-01-10 07:19:30,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 843 transitions. [2022-01-10 07:19:30,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:30,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:30,611 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] [2022-01-10 07:19:30,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:30,819 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 07:19:30,819 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:30,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:30,819 INFO L85 PathProgramCache]: Analyzing trace with hash -2020844490, now seen corresponding path program 1 times [2022-01-10 07:19:30,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:30,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834134313] [2022-01-10 07:19:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:30,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:30,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:30,821 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 07:19:30,822 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 07:19:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:31,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:31,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:31,827 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 07:19:31,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:31,827 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:31,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834134313] [2022-01-10 07:19:31,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [834134313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:31,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:31,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:31,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297763004] [2022-01-10 07:19:31,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:31,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:31,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:31,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:31,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:31,829 INFO L87 Difference]: Start difference. First operand 635 states and 843 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:32,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:32,217 INFO L93 Difference]: Finished difference Result 788 states and 1056 transitions. [2022-01-10 07:19:32,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:32,218 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:32,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:32,241 INFO L225 Difference]: With dead ends: 788 [2022-01-10 07:19:32,241 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:32,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:32,248 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 54 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1349 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:32,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 3602 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 659 Invalid, 0 Unknown, 1349 Unchecked, 0.4s Time] [2022-01-10 07:19:32,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:32,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:32,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3735725938009788) internal successors, (842), 634 states have internal predecessors, (842), 0 states have call successors, (0), 0 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 07:19:32,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 842 transitions. [2022-01-10 07:19:32,256 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 842 transitions. Word has length 95 [2022-01-10 07:19:32,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:32,256 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 842 transitions. [2022-01-10 07:19:32,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:32,256 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 842 transitions. [2022-01-10 07:19:32,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:32,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:32,257 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] [2022-01-10 07:19:32,267 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 07:19:32,465 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 07:19:32,465 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:32,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:32,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1920722797, now seen corresponding path program 1 times [2022-01-10 07:19:32,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:32,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906305334] [2022-01-10 07:19:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:32,466 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:32,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:32,467 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 07:19:32,468 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 07:19:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:32,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:32,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:33,378 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 07:19:33,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:33,379 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:33,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906305334] [2022-01-10 07:19:33,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906305334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:33,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:33,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:33,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103341642] [2022-01-10 07:19:33,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:33,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:33,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:33,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:33,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:33,380 INFO L87 Difference]: Start difference. First operand 635 states and 842 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:33,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:33,671 INFO L93 Difference]: Finished difference Result 717 states and 969 transitions. [2022-01-10 07:19:33,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:33,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:33,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:33,673 INFO L225 Difference]: With dead ends: 717 [2022-01-10 07:19:33,673 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:33,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:33,674 INFO L933 BasicCegarLoop]: 807 mSDtfsCounter, 53 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3567 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1327 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:33,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 3567 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 1327 Unchecked, 0.3s Time] [2022-01-10 07:19:33,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:33,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3719412724306688) internal successors, (841), 634 states have internal predecessors, (841), 0 states have call successors, (0), 0 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 07:19:33,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 841 transitions. [2022-01-10 07:19:33,681 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 841 transitions. Word has length 95 [2022-01-10 07:19:33,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:33,681 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 841 transitions. [2022-01-10 07:19:33,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:33,682 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 841 transitions. [2022-01-10 07:19:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:33,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:33,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:19:33,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:33,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:33,891 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:33,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:33,892 INFO L85 PathProgramCache]: Analyzing trace with hash -523524958, now seen corresponding path program 1 times [2022-01-10 07:19:33,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:33,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912175155] [2022-01-10 07:19:33,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:33,893 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:33,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:33,894 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:33,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-01-10 07:19:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:34,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:34,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:34,933 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 07:19:34,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:34,933 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:34,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912175155] [2022-01-10 07:19:34,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912175155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:34,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:34,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:34,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804883491] [2022-01-10 07:19:34,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:34,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:34,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:34,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:34,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:34,935 INFO L87 Difference]: Start difference. First operand 635 states and 841 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:35,324 INFO L93 Difference]: Finished difference Result 721 states and 971 transitions. [2022-01-10 07:19:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:35,324 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:35,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:35,326 INFO L225 Difference]: With dead ends: 721 [2022-01-10 07:19:35,326 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:35,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:35,327 INFO L933 BasicCegarLoop]: 806 mSDtfsCounter, 64 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 373 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:35,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 2302 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 657 Invalid, 0 Unknown, 373 Unchecked, 0.4s Time] [2022-01-10 07:19:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:35,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.370309951060359) internal successors, (840), 634 states have internal predecessors, (840), 0 states have call successors, (0), 0 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 07:19:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 840 transitions. [2022-01-10 07:19:35,339 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 840 transitions. Word has length 95 [2022-01-10 07:19:35,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:35,339 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 840 transitions. [2022-01-10 07:19:35,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:35,340 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 840 transitions. [2022-01-10 07:19:35,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:35,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:35,341 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] [2022-01-10 07:19:35,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:35,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:35,549 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:35,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:35,549 INFO L85 PathProgramCache]: Analyzing trace with hash -891627133, now seen corresponding path program 1 times [2022-01-10 07:19:35,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:35,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928218962] [2022-01-10 07:19:35,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:35,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:35,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:35,551 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:35,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-01-10 07:19:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:35,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:35,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:36,559 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 07:19:36,560 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:36,560 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:36,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928218962] [2022-01-10 07:19:36,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928218962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:36,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:36,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:36,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464683819] [2022-01-10 07:19:36,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:36,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:36,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:36,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:36,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:36,561 INFO L87 Difference]: Start difference. First operand 635 states and 840 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:36,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:36,811 INFO L93 Difference]: Finished difference Result 722 states and 971 transitions. [2022-01-10 07:19:36,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:36,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:36,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:36,815 INFO L225 Difference]: With dead ends: 722 [2022-01-10 07:19:36,815 INFO L226 Difference]: Without dead ends: 636 [2022-01-10 07:19:36,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:36,815 INFO L933 BasicCegarLoop]: 805 mSDtfsCounter, 76 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:36,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 1488 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 51 Unchecked, 0.2s Time] [2022-01-10 07:19:36,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-01-10 07:19:36,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 635. [2022-01-10 07:19:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3686786296900488) internal successors, (839), 634 states have internal predecessors, (839), 0 states have call successors, (0), 0 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 07:19:36,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 839 transitions. [2022-01-10 07:19:36,824 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 839 transitions. Word has length 95 [2022-01-10 07:19:36,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:36,824 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 839 transitions. [2022-01-10 07:19:36,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:36,824 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 839 transitions. [2022-01-10 07:19:36,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:36,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:36,825 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] [2022-01-10 07:19:36,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:37,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:37,033 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:37,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:37,033 INFO L85 PathProgramCache]: Analyzing trace with hash -482781905, now seen corresponding path program 1 times [2022-01-10 07:19:37,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:37,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152996699] [2022-01-10 07:19:37,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:37,034 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:37,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:37,035 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:37,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-01-10 07:19:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:37,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:37,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:38,002 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 07:19:38,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:38,002 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:38,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152996699] [2022-01-10 07:19:38,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152996699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:38,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:38,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:38,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366637810] [2022-01-10 07:19:38,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:38,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:38,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:38,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:38,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:38,004 INFO L87 Difference]: Start difference. First operand 635 states and 839 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:38,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:38,258 INFO L93 Difference]: Finished difference Result 743 states and 995 transitions. [2022-01-10 07:19:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:38,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:38,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:38,260 INFO L225 Difference]: With dead ends: 743 [2022-01-10 07:19:38,260 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:38,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:38,261 INFO L933 BasicCegarLoop]: 808 mSDtfsCounter, 76 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 367 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:38,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 1895 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 319 Invalid, 0 Unknown, 367 Unchecked, 0.2s Time] [2022-01-10 07:19:38,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:38,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:38,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.367047308319739) internal successors, (838), 634 states have internal predecessors, (838), 0 states have call successors, (0), 0 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 07:19:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 838 transitions. [2022-01-10 07:19:38,269 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 838 transitions. Word has length 95 [2022-01-10 07:19:38,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:38,269 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 838 transitions. [2022-01-10 07:19:38,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:38,270 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 838 transitions. [2022-01-10 07:19:38,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:38,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:38,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:19:38,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:38,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:38,478 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:38,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:38,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1112928597, now seen corresponding path program 1 times [2022-01-10 07:19:38,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:38,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684563804] [2022-01-10 07:19:38,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:38,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:38,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:38,480 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:38,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-01-10 07:19:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:38,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:38,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:39,481 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 07:19:39,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:39,481 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:39,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684563804] [2022-01-10 07:19:39,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684563804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:39,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:39,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:39,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072045395] [2022-01-10 07:19:39,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:39,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:39,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:39,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:39,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:39,482 INFO L87 Difference]: Start difference. First operand 635 states and 838 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:39,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:39,719 INFO L93 Difference]: Finished difference Result 721 states and 969 transitions. [2022-01-10 07:19:39,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:39,720 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:39,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:39,721 INFO L225 Difference]: With dead ends: 721 [2022-01-10 07:19:39,721 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:39,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:39,722 INFO L933 BasicCegarLoop]: 803 mSDtfsCounter, 76 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:39,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 1486 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 50 Unchecked, 0.2s Time] [2022-01-10 07:19:39,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:39,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:39,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3654159869494291) internal successors, (837), 634 states have internal predecessors, (837), 0 states have call successors, (0), 0 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 07:19:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 837 transitions. [2022-01-10 07:19:39,729 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 837 transitions. Word has length 95 [2022-01-10 07:19:39,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:39,729 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 837 transitions. [2022-01-10 07:19:39,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 837 transitions. [2022-01-10 07:19:39,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:39,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:39,730 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] [2022-01-10 07:19:39,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:39,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:39,938 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:39,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash -738270563, now seen corresponding path program 1 times [2022-01-10 07:19:39,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:39,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066188965] [2022-01-10 07:19:39,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:39,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:39,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:39,940 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:39,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-01-10 07:19:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:40,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:40,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:40,881 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 07:19:40,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:40,882 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:40,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066188965] [2022-01-10 07:19:40,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066188965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:40,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:40,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:40,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390673523] [2022-01-10 07:19:40,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:40,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:40,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:40,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:40,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:40,883 INFO L87 Difference]: Start difference. First operand 635 states and 837 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:41,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:41,137 INFO L93 Difference]: Finished difference Result 717 states and 964 transitions. [2022-01-10 07:19:41,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:41,137 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:41,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:41,139 INFO L225 Difference]: With dead ends: 717 [2022-01-10 07:19:41,139 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:41,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:41,140 INFO L933 BasicCegarLoop]: 802 mSDtfsCounter, 66 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 361 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:41,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 1908 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 313 Invalid, 0 Unknown, 361 Unchecked, 0.2s Time] [2022-01-10 07:19:41,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:41,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.363784665579119) internal successors, (836), 634 states have internal predecessors, (836), 0 states have call successors, (0), 0 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 07:19:41,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 836 transitions. [2022-01-10 07:19:41,147 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 836 transitions. Word has length 95 [2022-01-10 07:19:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:41,147 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 836 transitions. [2022-01-10 07:19:41,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:41,147 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 836 transitions. [2022-01-10 07:19:41,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:41,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:41,148 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] [2022-01-10 07:19:41,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:41,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:41,356 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:41,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:41,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1153671650, now seen corresponding path program 1 times [2022-01-10 07:19:41,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:41,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867495762] [2022-01-10 07:19:41,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:41,357 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:41,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:41,358 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:41,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-01-10 07:19:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:41,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:41,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:42,312 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 07:19:42,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:42,312 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:42,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867495762] [2022-01-10 07:19:42,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867495762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:42,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:42,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:42,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681497900] [2022-01-10 07:19:42,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:42,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:42,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:42,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:42,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:42,314 INFO L87 Difference]: Start difference. First operand 635 states and 836 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:42,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:42,567 INFO L93 Difference]: Finished difference Result 743 states and 994 transitions. [2022-01-10 07:19:42,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:42,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:42,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:42,569 INFO L225 Difference]: With dead ends: 743 [2022-01-10 07:19:42,569 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:42,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:42,570 INFO L933 BasicCegarLoop]: 805 mSDtfsCounter, 76 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 997 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:42,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 2741 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 997 Unchecked, 0.2s Time] [2022-01-10 07:19:42,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:42,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3621533442088092) internal successors, (835), 634 states have internal predecessors, (835), 0 states have call successors, (0), 0 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 07:19:42,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 835 transitions. [2022-01-10 07:19:42,576 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 835 transitions. Word has length 95 [2022-01-10 07:19:42,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:42,577 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 835 transitions. [2022-01-10 07:19:42,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 835 transitions. [2022-01-10 07:19:42,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:42,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:42,578 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] [2022-01-10 07:19:42,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-01-10 07:19:42,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:42,778 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:42,779 INFO L85 PathProgramCache]: Analyzing trace with hash 744826422, now seen corresponding path program 1 times [2022-01-10 07:19:42,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:42,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557966584] [2022-01-10 07:19:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:42,779 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:42,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:42,780 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:42,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-01-10 07:19:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:42,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:42,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:43,695 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 07:19:43,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:43,696 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:43,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557966584] [2022-01-10 07:19:43,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557966584] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:43,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:43,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:43,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393882144] [2022-01-10 07:19:43,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:43,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:43,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:43,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:43,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:43,697 INFO L87 Difference]: Start difference. First operand 635 states and 835 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:43,944 INFO L93 Difference]: Finished difference Result 721 states and 966 transitions. [2022-01-10 07:19:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:43,944 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:43,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:43,946 INFO L225 Difference]: With dead ends: 721 [2022-01-10 07:19:43,946 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:43,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:43,947 INFO L933 BasicCegarLoop]: 800 mSDtfsCounter, 76 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:43,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 1483 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 311 Invalid, 0 Unknown, 50 Unchecked, 0.2s Time] [2022-01-10 07:19:43,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:43,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:43,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.360522022838499) internal successors, (834), 634 states have internal predecessors, (834), 0 states have call successors, (0), 0 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 07:19:43,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 834 transitions. [2022-01-10 07:19:43,954 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 834 transitions. Word has length 95 [2022-01-10 07:19:43,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:43,954 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 834 transitions. [2022-01-10 07:19:43,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:43,954 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 834 transitions. [2022-01-10 07:19:43,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:43,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:43,955 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] [2022-01-10 07:19:43,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:44,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:44,162 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:44,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:44,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1037319048, now seen corresponding path program 1 times [2022-01-10 07:19:44,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:44,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806182252] [2022-01-10 07:19:44,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:44,163 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:44,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:44,164 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:44,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-01-10 07:19:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:44,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:44,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:45,073 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 07:19:45,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:45,073 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:45,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806182252] [2022-01-10 07:19:45,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806182252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:45,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:45,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:45,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588820594] [2022-01-10 07:19:45,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:45,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:45,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:45,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:45,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:45,074 INFO L87 Difference]: Start difference. First operand 635 states and 834 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:45,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:45,347 INFO L93 Difference]: Finished difference Result 717 states and 961 transitions. [2022-01-10 07:19:45,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:45,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:45,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:45,349 INFO L225 Difference]: With dead ends: 717 [2022-01-10 07:19:45,349 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:45,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:45,350 INFO L933 BasicCegarLoop]: 799 mSDtfsCounter, 65 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 360 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:45,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 2299 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 360 Unchecked, 0.2s Time] [2022-01-10 07:19:45,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:45,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3588907014681892) internal successors, (833), 634 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 07:19:45,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 833 transitions. [2022-01-10 07:19:45,357 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 833 transitions. Word has length 95 [2022-01-10 07:19:45,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:45,357 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 833 transitions. [2022-01-10 07:19:45,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:45,357 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 833 transitions. [2022-01-10 07:19:45,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:45,358 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:45,358 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] [2022-01-10 07:19:45,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2022-01-10 07:19:45,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:45,559 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:45,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:45,559 INFO L85 PathProgramCache]: Analyzing trace with hash -359034935, now seen corresponding path program 1 times [2022-01-10 07:19:45,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:45,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839578233] [2022-01-10 07:19:45,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:45,560 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:45,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:45,561 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:45,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-01-10 07:19:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:45,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:45,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:46,478 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 07:19:46,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:46,478 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:46,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839578233] [2022-01-10 07:19:46,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839578233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:46,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:46,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:46,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145067158] [2022-01-10 07:19:46,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:46,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:46,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:46,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:46,481 INFO L87 Difference]: Start difference. First operand 635 states and 833 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:46,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:46,498 INFO L93 Difference]: Finished difference Result 715 states and 958 transitions. [2022-01-10 07:19:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 07:19:46,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:46,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:46,500 INFO L225 Difference]: With dead ends: 715 [2022-01-10 07:19:46,500 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:46,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 88 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 07:19:46,500 INFO L933 BasicCegarLoop]: 799 mSDtfsCounter, 54 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 355 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:46,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 1919 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 355 Unchecked, 0.0s Time] [2022-01-10 07:19:46,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:46,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:46,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3572593800978794) internal successors, (832), 634 states have internal predecessors, (832), 0 states have call successors, (0), 0 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 07:19:46,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 832 transitions. [2022-01-10 07:19:46,508 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 832 transitions. Word has length 95 [2022-01-10 07:19:46,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:46,508 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 832 transitions. [2022-01-10 07:19:46,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:46,508 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 832 transitions. [2022-01-10 07:19:46,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:46,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:46,509 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] [2022-01-10 07:19:46,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-01-10 07:19:46,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:46,717 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:46,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:46,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1152638694, now seen corresponding path program 1 times [2022-01-10 07:19:46,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:46,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104797162] [2022-01-10 07:19:46,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:46,718 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:46,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:46,719 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:46,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-01-10 07:19:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:46,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:46,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:47,692 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 07:19:47,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:47,693 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:47,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104797162] [2022-01-10 07:19:47,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104797162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:47,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:47,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:47,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849573913] [2022-01-10 07:19:47,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:47,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:47,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:47,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:47,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:47,694 INFO L87 Difference]: Start difference. First operand 635 states and 832 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:48,123 INFO L93 Difference]: Finished difference Result 721 states and 962 transitions. [2022-01-10 07:19:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:48,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:48,125 INFO L225 Difference]: With dead ends: 721 [2022-01-10 07:19:48,125 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:48,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:48,126 INFO L933 BasicCegarLoop]: 797 mSDtfsCounter, 54 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1287 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:48,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 3557 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 639 Invalid, 0 Unknown, 1287 Unchecked, 0.4s Time] [2022-01-10 07:19:48,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:48,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:48,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3556280587275693) internal successors, (831), 634 states have internal predecessors, (831), 0 states have call successors, (0), 0 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 07:19:48,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 831 transitions. [2022-01-10 07:19:48,133 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 831 transitions. Word has length 95 [2022-01-10 07:19:48,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:48,133 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 831 transitions. [2022-01-10 07:19:48,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:48,133 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 831 transitions. [2022-01-10 07:19:48,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 07:19:48,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:48,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:19:48,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:48,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:48,342 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:48,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:48,342 INFO L85 PathProgramCache]: Analyzing trace with hash -698776940, now seen corresponding path program 1 times [2022-01-10 07:19:48,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:48,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703687184] [2022-01-10 07:19:48,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:48,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:48,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:48,344 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:48,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-01-10 07:19:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:48,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:48,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:49,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:19:49,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:49,237 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:49,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703687184] [2022-01-10 07:19:49,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703687184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:49,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:49,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:49,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804075519] [2022-01-10 07:19:49,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:49,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:49,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:49,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:49,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:49,239 INFO L87 Difference]: Start difference. First operand 635 states and 831 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:49,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:49,474 INFO L93 Difference]: Finished difference Result 717 states and 958 transitions. [2022-01-10 07:19:49,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:49,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 07:19:49,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:49,476 INFO L225 Difference]: With dead ends: 717 [2022-01-10 07:19:49,476 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:49,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 07:19:49,476 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 66 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 975 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:49,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 2738 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 307 Invalid, 0 Unknown, 975 Unchecked, 0.2s Time] [2022-01-10 07:19:49,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:49,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:49,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3539967373572595) internal successors, (830), 634 states have internal predecessors, (830), 0 states have call successors, (0), 0 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 07:19:49,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 830 transitions. [2022-01-10 07:19:49,483 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 830 transitions. Word has length 95 [2022-01-10 07:19:49,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:49,483 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 830 transitions. [2022-01-10 07:19:49,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 07:19:49,483 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 830 transitions. [2022-01-10 07:19:49,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:19:49,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:49,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:19:49,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:49,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:49,692 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:49,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:49,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1541256586, now seen corresponding path program 1 times [2022-01-10 07:19:49,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:49,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771435374] [2022-01-10 07:19:49,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:49,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:49,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:49,694 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:49,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-01-10 07:19:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:49,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:49,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:50,632 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 07:19:50,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:50,632 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:50,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771435374] [2022-01-10 07:19:50,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771435374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:50,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:50,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:50,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388420025] [2022-01-10 07:19:50,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:50,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:50,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:50,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:50,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:50,633 INFO L87 Difference]: Start difference. First operand 635 states and 830 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:50,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:50,926 INFO L93 Difference]: Finished difference Result 711 states and 948 transitions. [2022-01-10 07:19:50,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:50,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 07:19:50,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:50,928 INFO L225 Difference]: With dead ends: 711 [2022-01-10 07:19:50,928 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:50,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 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 07:19:50,929 INFO L933 BasicCegarLoop]: 791 mSDtfsCounter, 54 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3501 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1276 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:50,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 3501 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 351 Invalid, 0 Unknown, 1276 Unchecked, 0.3s Time] [2022-01-10 07:19:50,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:50,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:50,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3523654159869494) internal successors, (829), 634 states have internal predecessors, (829), 0 states have call successors, (0), 0 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 07:19:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 829 transitions. [2022-01-10 07:19:50,936 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 829 transitions. Word has length 97 [2022-01-10 07:19:50,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:50,936 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 829 transitions. [2022-01-10 07:19:50,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 829 transitions. [2022-01-10 07:19:50,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:19:50,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:50,937 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] [2022-01-10 07:19:50,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:51,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:51,138 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:51,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1487727486, now seen corresponding path program 1 times [2022-01-10 07:19:51,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:51,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108055944] [2022-01-10 07:19:51,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:51,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:51,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:51,140 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:51,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-01-10 07:19:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:51,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:51,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:19:52,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:52,082 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:52,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108055944] [2022-01-10 07:19:52,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108055944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:52,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:52,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:52,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583655633] [2022-01-10 07:19:52,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:52,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:52,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:52,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:52,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:52,083 INFO L87 Difference]: Start difference. First operand 635 states and 829 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:52,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:52,457 INFO L93 Difference]: Finished difference Result 714 states and 950 transitions. [2022-01-10 07:19:52,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:52,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 07:19:52,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:52,459 INFO L225 Difference]: With dead ends: 714 [2022-01-10 07:19:52,459 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:52,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 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 07:19:52,460 INFO L933 BasicCegarLoop]: 790 mSDtfsCounter, 66 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:52,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 1862 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 649 Invalid, 0 Unknown, 54 Unchecked, 0.3s Time] [2022-01-10 07:19:52,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3507340946166395) internal successors, (828), 634 states have internal predecessors, (828), 0 states have call successors, (0), 0 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 07:19:52,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 828 transitions. [2022-01-10 07:19:52,466 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 828 transitions. Word has length 97 [2022-01-10 07:19:52,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:52,466 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 828 transitions. [2022-01-10 07:19:52,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:52,466 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 828 transitions. [2022-01-10 07:19:52,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:19:52,467 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:52,467 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] [2022-01-10 07:19:52,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:52,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:52,675 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:52,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:52,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2052103235, now seen corresponding path program 1 times [2022-01-10 07:19:52,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:52,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974264051] [2022-01-10 07:19:52,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:52,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:52,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:52,677 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:52,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-01-10 07:19:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:52,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:52,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:53,607 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 07:19:53,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:53,607 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:53,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974264051] [2022-01-10 07:19:53,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974264051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:53,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:53,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:53,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863366160] [2022-01-10 07:19:53,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:53,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:53,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:53,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:53,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:53,608 INFO L87 Difference]: Start difference. First operand 635 states and 828 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:53,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:53,834 INFO L93 Difference]: Finished difference Result 715 states and 950 transitions. [2022-01-10 07:19:53,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:53,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 07:19:53,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:53,836 INFO L225 Difference]: With dead ends: 715 [2022-01-10 07:19:53,836 INFO L226 Difference]: Without dead ends: 636 [2022-01-10 07:19:53,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 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 07:19:53,837 INFO L933 BasicCegarLoop]: 789 mSDtfsCounter, 75 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 369 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:53,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 1894 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 300 Invalid, 0 Unknown, 369 Unchecked, 0.2s Time] [2022-01-10 07:19:53,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-01-10 07:19:53,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 635. [2022-01-10 07:19:53,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3491027732463294) internal successors, (827), 634 states have internal predecessors, (827), 0 states have call successors, (0), 0 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 07:19:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 827 transitions. [2022-01-10 07:19:53,844 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 827 transitions. Word has length 97 [2022-01-10 07:19:53,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:53,844 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 827 transitions. [2022-01-10 07:19:53,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:53,844 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 827 transitions. [2022-01-10 07:19:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:19:53,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:53,845 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] [2022-01-10 07:19:53,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:54,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:54,045 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:54,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:54,046 INFO L85 PathProgramCache]: Analyzing trace with hash -139906133, now seen corresponding path program 1 times [2022-01-10 07:19:54,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:54,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541649360] [2022-01-10 07:19:54,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:54,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:54,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:54,047 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:54,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-01-10 07:19:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:54,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:54,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:54,961 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 07:19:54,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:54,962 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:54,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541649360] [2022-01-10 07:19:54,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541649360] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:54,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:54,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:54,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509160365] [2022-01-10 07:19:54,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:54,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:54,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:54,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:54,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:54,963 INFO L87 Difference]: Start difference. First operand 635 states and 827 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:55,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:55,322 INFO L93 Difference]: Finished difference Result 726 states and 962 transitions. [2022-01-10 07:19:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:55,323 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 07:19:55,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:55,324 INFO L225 Difference]: With dead ends: 726 [2022-01-10 07:19:55,324 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:55,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 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 07:19:55,325 INFO L933 BasicCegarLoop]: 792 mSDtfsCounter, 63 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:55,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 1873 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 629 Invalid, 0 Unknown, 50 Unchecked, 0.3s Time] [2022-01-10 07:19:55,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:55,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:55,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3474714518760196) internal successors, (826), 634 states have internal predecessors, (826), 0 states have call successors, (0), 0 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 07:19:55,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 826 transitions. [2022-01-10 07:19:55,331 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 826 transitions. Word has length 97 [2022-01-10 07:19:55,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:55,331 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 826 transitions. [2022-01-10 07:19:55,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:55,332 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 826 transitions. [2022-01-10 07:19:55,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:19:55,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:55,332 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] [2022-01-10 07:19:55,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:55,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:55,533 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:55,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:55,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1430230902, now seen corresponding path program 1 times [2022-01-10 07:19:55,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:55,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560046979] [2022-01-10 07:19:55,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:55,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:55,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:55,535 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:55,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-01-10 07:19:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:55,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:55,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:56,460 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 07:19:56,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:56,460 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:56,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560046979] [2022-01-10 07:19:56,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560046979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:56,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:56,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:56,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15671866] [2022-01-10 07:19:56,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:56,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:56,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:56,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:56,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:56,461 INFO L87 Difference]: Start difference. First operand 635 states and 826 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:56,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:56,682 INFO L93 Difference]: Finished difference Result 716 states and 949 transitions. [2022-01-10 07:19:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:56,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 07:19:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:56,684 INFO L225 Difference]: With dead ends: 716 [2022-01-10 07:19:56,684 INFO L226 Difference]: Without dead ends: 637 [2022-01-10 07:19:56,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 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 07:19:56,685 INFO L933 BasicCegarLoop]: 787 mSDtfsCounter, 75 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:56,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 1489 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 56 Unchecked, 0.2s Time] [2022-01-10 07:19:56,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-01-10 07:19:56,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 635. [2022-01-10 07:19:56,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3458401305057097) internal successors, (825), 634 states have internal predecessors, (825), 0 states have call successors, (0), 0 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 07:19:56,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 825 transitions. [2022-01-10 07:19:56,692 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 825 transitions. Word has length 97 [2022-01-10 07:19:56,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:56,692 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 825 transitions. [2022-01-10 07:19:56,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 825 transitions. [2022-01-10 07:19:56,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:19:56,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:56,693 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] [2022-01-10 07:19:56,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:56,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:56,893 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:56,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:56,894 INFO L85 PathProgramCache]: Analyzing trace with hash -952539292, now seen corresponding path program 1 times [2022-01-10 07:19:56,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:56,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136635115] [2022-01-10 07:19:56,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:56,894 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:56,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:56,895 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:56,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-01-10 07:19:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:57,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:57,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:57,864 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 07:19:57,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:57,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:57,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136635115] [2022-01-10 07:19:57,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136635115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:57,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:57,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:57,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911274432] [2022-01-10 07:19:57,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:57,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:57,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:57,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:57,866 INFO L87 Difference]: Start difference. First operand 635 states and 825 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:57,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:57,884 INFO L93 Difference]: Finished difference Result 727 states and 961 transitions. [2022-01-10 07:19:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 07:19:57,885 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 07:19:57,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:57,886 INFO L225 Difference]: With dead ends: 727 [2022-01-10 07:19:57,886 INFO L226 Difference]: Without dead ends: 636 [2022-01-10 07:19:57,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 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 07:19:57,887 INFO L933 BasicCegarLoop]: 791 mSDtfsCounter, 63 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 654 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:57,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 2326 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 654 Unchecked, 0.0s Time] [2022-01-10 07:19:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-01-10 07:19:57,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 635. [2022-01-10 07:19:57,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3442088091353996) internal successors, (824), 634 states have internal predecessors, (824), 0 states have call successors, (0), 0 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 07:19:57,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 824 transitions. [2022-01-10 07:19:57,894 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 824 transitions. Word has length 97 [2022-01-10 07:19:57,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:57,894 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 824 transitions. [2022-01-10 07:19:57,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:57,894 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 824 transitions. [2022-01-10 07:19:57,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:19:57,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:57,895 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] [2022-01-10 07:19:57,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:58,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:58,103 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:58,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:58,103 INFO L85 PathProgramCache]: Analyzing trace with hash -557790964, now seen corresponding path program 1 times [2022-01-10 07:19:58,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:58,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781616381] [2022-01-10 07:19:58,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:58,104 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:58,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:58,105 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:58,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-01-10 07:19:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:58,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:58,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:19:58,997 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 07:19:58,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:19:58,997 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:19:58,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781616381] [2022-01-10 07:19:58,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781616381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:19:58,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:19:58,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:19:58,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320569361] [2022-01-10 07:19:58,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:19:58,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:19:58,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:19:58,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:19:58,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:19:58,998 INFO L87 Difference]: Start difference. First operand 635 states and 824 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:59,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:19:59,232 INFO L93 Difference]: Finished difference Result 749 states and 987 transitions. [2022-01-10 07:19:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:19:59,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 07:19:59,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:19:59,234 INFO L225 Difference]: With dead ends: 749 [2022-01-10 07:19:59,234 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:19:59,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 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 07:19:59,239 INFO L933 BasicCegarLoop]: 793 mSDtfsCounter, 75 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 351 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:19:59,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 1881 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 304 Invalid, 0 Unknown, 351 Unchecked, 0.2s Time] [2022-01-10 07:19:59,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:19:59,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:19:59,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3425774877650898) internal successors, (823), 634 states have internal predecessors, (823), 0 states have call successors, (0), 0 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 07:19:59,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 823 transitions. [2022-01-10 07:19:59,247 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 823 transitions. Word has length 97 [2022-01-10 07:19:59,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:19:59,247 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 823 transitions. [2022-01-10 07:19:59,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:19:59,248 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 823 transitions. [2022-01-10 07:19:59,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:19:59,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:19:59,248 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] [2022-01-10 07:19:59,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-01-10 07:19:59,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:19:59,449 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:19:59,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:19:59,449 INFO L85 PathProgramCache]: Analyzing trace with hash 934856710, now seen corresponding path program 1 times [2022-01-10 07:19:59,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:19:59,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39355374] [2022-01-10 07:19:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:19:59,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:19:59,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:19:59,450 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:19:59,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-01-10 07:19:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:19:59,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:19:59,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:00,345 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 07:20:00,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:00,345 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:00,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39355374] [2022-01-10 07:20:00,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39355374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:00,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:00,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:00,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531057388] [2022-01-10 07:20:00,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:00,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:00,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:00,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:00,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:00,347 INFO L87 Difference]: Start difference. First operand 635 states and 823 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:20:00,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:00,573 INFO L93 Difference]: Finished difference Result 709 states and 939 transitions. [2022-01-10 07:20:00,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:00,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 07:20:00,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:00,575 INFO L225 Difference]: With dead ends: 709 [2022-01-10 07:20:00,575 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:20:00,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 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 07:20:00,576 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 77 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:00,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 1486 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 54 Unchecked, 0.2s Time] [2022-01-10 07:20:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:20:00,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:20:00,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3409461663947797) internal successors, (822), 634 states have internal predecessors, (822), 0 states have call successors, (0), 0 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 07:20:00,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 822 transitions. [2022-01-10 07:20:00,582 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 822 transitions. Word has length 97 [2022-01-10 07:20:00,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:00,582 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 822 transitions. [2022-01-10 07:20:00,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:20:00,582 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 822 transitions. [2022-01-10 07:20:00,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:20:00,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:00,583 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] [2022-01-10 07:20:00,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-01-10 07:20:00,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:00,784 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:20:00,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:00,784 INFO L85 PathProgramCache]: Analyzing trace with hash -965955861, now seen corresponding path program 1 times [2022-01-10 07:20:00,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:00,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948166937] [2022-01-10 07:20:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:00,785 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:00,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:00,785 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:00,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-01-10 07:20:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:00,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:00,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:01,684 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 07:20:01,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:01,684 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:01,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948166937] [2022-01-10 07:20:01,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948166937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:01,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:01,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:01,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585864704] [2022-01-10 07:20:01,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:01,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:01,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:01,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:01,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:01,685 INFO L87 Difference]: Start difference. First operand 635 states and 822 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:20:01,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:01,704 INFO L93 Difference]: Finished difference Result 711 states and 940 transitions. [2022-01-10 07:20:01,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 07:20:01,705 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 07:20:01,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:01,706 INFO L225 Difference]: With dead ends: 711 [2022-01-10 07:20:01,706 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:20:01,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 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 07:20:01,707 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 53 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1242 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:01,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 3136 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 1242 Unchecked, 0.0s Time] [2022-01-10 07:20:01,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:20:01,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:20:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3393148450244698) internal successors, (821), 634 states have internal predecessors, (821), 0 states have call successors, (0), 0 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 07:20:01,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 821 transitions. [2022-01-10 07:20:01,714 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 821 transitions. Word has length 97 [2022-01-10 07:20:01,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:01,714 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 821 transitions. [2022-01-10 07:20:01,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:20:01,714 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 821 transitions. [2022-01-10 07:20:01,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:20:01,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:01,715 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] [2022-01-10 07:20:01,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2022-01-10 07:20:01,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:01,923 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:20:01,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:01,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1614649937, now seen corresponding path program 1 times [2022-01-10 07:20:01,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:01,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009535758] [2022-01-10 07:20:01,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:01,924 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:01,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:01,925 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:01,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-01-10 07:20:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:20:02,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 07:20:02,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:20:02,826 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 07:20:02,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:20:02,827 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:20:02,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009535758] [2022-01-10 07:20:02,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009535758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:20:02,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:20:02,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:20:02,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330406265] [2022-01-10 07:20:02,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:20:02,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:20:02,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:20:02,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:20:02,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:20:02,828 INFO L87 Difference]: Start difference. First operand 635 states and 821 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:20:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:20:03,184 INFO L93 Difference]: Finished difference Result 711 states and 939 transitions. [2022-01-10 07:20:03,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:20:03,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 07:20:03,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:20:03,186 INFO L225 Difference]: With dead ends: 711 [2022-01-10 07:20:03,186 INFO L226 Difference]: Without dead ends: 635 [2022-01-10 07:20:03,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 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 07:20:03,186 INFO L933 BasicCegarLoop]: 782 mSDtfsCounter, 54 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 932 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:20:03,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 3106 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 633 Invalid, 0 Unknown, 932 Unchecked, 0.3s Time] [2022-01-10 07:20:03,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-01-10 07:20:03,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2022-01-10 07:20:03,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3376835236541598) internal successors, (820), 634 states have internal predecessors, (820), 0 states have call successors, (0), 0 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 07:20:03,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 820 transitions. [2022-01-10 07:20:03,193 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 820 transitions. Word has length 97 [2022-01-10 07:20:03,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:20:03,194 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 820 transitions. [2022-01-10 07:20:03,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 07:20:03,194 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 820 transitions. [2022-01-10 07:20:03,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 07:20:03,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:20:03,194 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] [2022-01-10 07:20:03,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Ended with exit code 0 [2022-01-10 07:20:03,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:20:03,399 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 07:20:03,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:20:03,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1414714454, now seen corresponding path program 1 times [2022-01-10 07:20:03,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:20:03,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955161385] [2022-01-10 07:20:03,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:20:03,400 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:20:03,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:20:03,401 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:20:03,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process