/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_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:38:37,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:38:37,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:38:37,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 01:38:37,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:38:37,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:38:37,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:38:37,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 01:38:37,174 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:38:37,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:38:37,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:38:37,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:38:37,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:38:37,176 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:38:37,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:38:37,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:38:37,177 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:38:37,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:38:37,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:38:37,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:38:37,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:38:37,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:38:37,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:38:37,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:38:37,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:38:37,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:38:37,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:38:37,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:38:37,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:38:37,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:38:37,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:38:37,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:38:37,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:38:37,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:38:37,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:38:37,181 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:38:37,181 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:38:37,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:38:37,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:38:37,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:38:37,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:38:37,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:38:37,385 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:38:37,385 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:38:37,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-01-10 01:38:37,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdce352e2/4be47542cca74d0eb3d6f8059c66496d/FLAG4225420f0 [2022-01-10 01:38:37,985 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:38:37,986 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-01-10 01:38:38,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdce352e2/4be47542cca74d0eb3d6f8059c66496d/FLAG4225420f0 [2022-01-10 01:38:38,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdce352e2/4be47542cca74d0eb3d6f8059c66496d [2022-01-10 01:38:38,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:38:38,470 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:38:38,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:38:38,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:38:38,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:38:38,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:38:38" (1/1) ... [2022-01-10 01:38:38,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8754e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:38, skipping insertion in model container [2022-01-10 01:38:38,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:38:38" (1/1) ... [2022-01-10 01:38:38,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:38:38,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:38:38,806 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11563,11576] [2022-01-10 01:38:38,852 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15640,15653] [2022-01-10 01:38:38,864 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16861,16874] [2022-01-10 01:38:38,874 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17567,17580] [2022-01-10 01:38:38,886 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19153,19166] [2022-01-10 01:38:38,890 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19859,19872] [2022-01-10 01:38:38,899 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20930,20943] [2022-01-10 01:38:38,912 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23420,23433] [2022-01-10 01:38:38,916 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24129,24142] [2022-01-10 01:38:38,934 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25166,25179] [2022-01-10 01:38:38,950 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27104,27117] [2022-01-10 01:38:38,965 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31138,31151] [2022-01-10 01:38:38,969 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31847,31860] [2022-01-10 01:38:38,973 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32921,32934] [2022-01-10 01:38:38,980 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34896,34909] [2022-01-10 01:38:38,992 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38277,38290] [2022-01-10 01:38:39,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:38:39,126 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:38:39,190 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11563,11576] [2022-01-10 01:38:39,213 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15640,15653] [2022-01-10 01:38:39,223 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16861,16874] [2022-01-10 01:38:39,229 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17567,17580] [2022-01-10 01:38:39,241 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19153,19166] [2022-01-10 01:38:39,247 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19859,19872] [2022-01-10 01:38:39,257 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20930,20943] [2022-01-10 01:38:39,275 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23420,23433] [2022-01-10 01:38:39,282 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24129,24142] [2022-01-10 01:38:39,290 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25166,25179] [2022-01-10 01:38:39,305 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27104,27117] [2022-01-10 01:38:39,335 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31138,31151] [2022-01-10 01:38:39,341 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31847,31860] [2022-01-10 01:38:39,350 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32921,32934] [2022-01-10 01:38:39,366 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34896,34909] [2022-01-10 01:38:39,391 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38277,38290] [2022-01-10 01:38:39,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:38:39,567 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:38:39,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39 WrapperNode [2022-01-10 01:38:39,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:38:39,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:38:39,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:38:39,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:38:39,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (1/1) ... [2022-01-10 01:38:39,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (1/1) ... [2022-01-10 01:38:39,695 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3487 [2022-01-10 01:38:39,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:38:39,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:38:39,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:38:39,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:38:39,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (1/1) ... [2022-01-10 01:38:39,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (1/1) ... [2022-01-10 01:38:39,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (1/1) ... [2022-01-10 01:38:39,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (1/1) ... [2022-01-10 01:38:39,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (1/1) ... [2022-01-10 01:38:39,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (1/1) ... [2022-01-10 01:38:39,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (1/1) ... [2022-01-10 01:38:39,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:38:39,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:38:39,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:38:39,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:38:39,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (1/1) ... [2022-01-10 01:38:39,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:38:39,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:38:39,824 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 01:38:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:38:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:38:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:38:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:38:39,844 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 01:38:40,132 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:38:40,142 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:38:41,602 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:38:41,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:38:41,620 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 01:38:41,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:38:41 BoogieIcfgContainer [2022-01-10 01:38:41,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:38:41,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:38:41,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:38:41,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:38:41,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:38:38" (1/3) ... [2022-01-10 01:38:41,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77984e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:38:41, skipping insertion in model container [2022-01-10 01:38:41,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:39" (2/3) ... [2022-01-10 01:38:41,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77984e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:38:41, skipping insertion in model container [2022-01-10 01:38:41,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:38:41" (3/3) ... [2022-01-10 01:38:41,643 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-01-10 01:38:41,647 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:38:41,647 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-01-10 01:38:41,739 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:38:41,744 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 01:38:41,745 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-01-10 01:38:41,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 629 states, 612 states have (on average 1.8480392156862746) internal successors, (1131), 628 states have internal predecessors, (1131), 0 states have call successors, (0), 0 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 01:38:41,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 01:38:41,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:41,827 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] [2022-01-10 01:38:41,827 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:41,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:41,838 INFO L85 PathProgramCache]: Analyzing trace with hash -729096350, now seen corresponding path program 1 times [2022-01-10 01:38:41,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:41,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027684373] [2022-01-10 01:38:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:41,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:42,186 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 01:38:42,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:42,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027684373] [2022-01-10 01:38:42,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027684373] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:42,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:42,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:38:42,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707515057] [2022-01-10 01:38:42,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:42,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:38:42,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:42,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:38:42,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:38:42,218 INFO L87 Difference]: Start difference. First operand has 629 states, 612 states have (on average 1.8480392156862746) internal successors, (1131), 628 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 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 01:38:42,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:42,718 INFO L93 Difference]: Finished difference Result 976 states and 1692 transitions. [2022-01-10 01:38:42,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:38:42,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-01-10 01:38:42,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:42,734 INFO L225 Difference]: With dead ends: 976 [2022-01-10 01:38:42,734 INFO L226 Difference]: Without dead ends: 504 [2022-01-10 01:38:42,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:38:42,744 INFO L933 BasicCegarLoop]: 591 mSDtfsCounter, 2527 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:42,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2527 Valid, 621 Invalid, 298 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:42,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-01-10 01:38:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2022-01-10 01:38:42,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 488 states have (on average 1.305327868852459) internal successors, (637), 503 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:42,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 637 transitions. [2022-01-10 01:38:42,835 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 637 transitions. Word has length 72 [2022-01-10 01:38:42,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:42,836 INFO L470 AbstractCegarLoop]: Abstraction has 504 states and 637 transitions. [2022-01-10 01:38:42,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 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 01:38:42,836 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 637 transitions. [2022-01-10 01:38:42,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 01:38:42,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:42,841 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] [2022-01-10 01:38:42,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:38:42,842 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:42,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:42,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2012921467, now seen corresponding path program 1 times [2022-01-10 01:38:42,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:42,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274442583] [2022-01-10 01:38:42,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:42,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:42,976 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 01:38:42,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:42,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274442583] [2022-01-10 01:38:42,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274442583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:42,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:42,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:38:42,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106572176] [2022-01-10 01:38:42,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:42,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:38:42,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:42,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:38:42,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:38:42,979 INFO L87 Difference]: Start difference. First operand 504 states and 637 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:43,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:43,361 INFO L93 Difference]: Finished difference Result 1056 states and 1379 transitions. [2022-01-10 01:38:43,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:38:43,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-01-10 01:38:43,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:43,365 INFO L225 Difference]: With dead ends: 1056 [2022-01-10 01:38:43,365 INFO L226 Difference]: Without dead ends: 654 [2022-01-10 01:38:43,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:38:43,367 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 2208 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:43,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2208 Valid, 503 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:43,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-01-10 01:38:43,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 594. [2022-01-10 01:38:43,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 578 states have (on average 1.3806228373702423) internal successors, (798), 593 states have internal predecessors, (798), 0 states have call successors, (0), 0 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 01:38:43,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 798 transitions. [2022-01-10 01:38:43,397 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 798 transitions. Word has length 73 [2022-01-10 01:38:43,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:43,397 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 798 transitions. [2022-01-10 01:38:43,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:43,398 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 798 transitions. [2022-01-10 01:38:43,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-10 01:38:43,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:43,399 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] [2022-01-10 01:38:43,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 01:38:43,399 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:43,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:43,400 INFO L85 PathProgramCache]: Analyzing trace with hash -800948093, now seen corresponding path program 1 times [2022-01-10 01:38:43,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:43,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595832385] [2022-01-10 01:38:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:43,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:43,499 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 01:38:43,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:43,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595832385] [2022-01-10 01:38:43,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595832385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:43,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:43,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:38:43,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793016770] [2022-01-10 01:38:43,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:43,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:38:43,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:43,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:38:43,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:38:43,501 INFO L87 Difference]: Start difference. First operand 594 states and 798 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 01:38:43,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:43,827 INFO L93 Difference]: Finished difference Result 1086 states and 1487 transitions. [2022-01-10 01:38:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:38:43,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-01-10 01:38:43,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:43,833 INFO L225 Difference]: With dead ends: 1086 [2022-01-10 01:38:43,833 INFO L226 Difference]: Without dead ends: 574 [2022-01-10 01:38:43,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:38:43,836 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 1483 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:43,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 302 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:43,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-01-10 01:38:43,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2022-01-10 01:38:43,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 558 states have (on average 1.3835125448028673) internal successors, (772), 573 states have internal predecessors, (772), 0 states have call successors, (0), 0 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 01:38:43,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 772 transitions. [2022-01-10 01:38:43,873 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 772 transitions. Word has length 74 [2022-01-10 01:38:43,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:43,874 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 772 transitions. [2022-01-10 01:38:43,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 01:38:43,874 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 772 transitions. [2022-01-10 01:38:43,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 01:38:43,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:43,876 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] [2022-01-10 01:38:43,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 01:38:43,877 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:43,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:43,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1628151892, now seen corresponding path program 1 times [2022-01-10 01:38:43,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:43,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730664597] [2022-01-10 01:38:43,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:43,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:43,953 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 01:38:43,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:43,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730664597] [2022-01-10 01:38:43,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730664597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:43,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:43,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:38:43,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833756250] [2022-01-10 01:38:43,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:43,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:38:43,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:43,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:38:43,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:38:43,955 INFO L87 Difference]: Start difference. First operand 574 states and 772 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:44,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:44,209 INFO L93 Difference]: Finished difference Result 1066 states and 1459 transitions. [2022-01-10 01:38:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:38:44,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-10 01:38:44,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:44,212 INFO L225 Difference]: With dead ends: 1066 [2022-01-10 01:38:44,212 INFO L226 Difference]: Without dead ends: 558 [2022-01-10 01:38:44,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:38:44,214 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 1460 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:44,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1460 Valid, 308 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:38:44,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-01-10 01:38:44,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2022-01-10 01:38:44,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 542 states have (on average 1.3874538745387455) internal successors, (752), 557 states have internal predecessors, (752), 0 states have call successors, (0), 0 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 01:38:44,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 752 transitions. [2022-01-10 01:38:44,245 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 752 transitions. Word has length 75 [2022-01-10 01:38:44,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:44,246 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 752 transitions. [2022-01-10 01:38:44,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:44,246 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 752 transitions. [2022-01-10 01:38:44,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 01:38:44,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:44,247 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] [2022-01-10 01:38:44,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 01:38:44,248 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:44,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1037752348, now seen corresponding path program 1 times [2022-01-10 01:38:44,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:44,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216265269] [2022-01-10 01:38:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:44,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:44,310 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 01:38:44,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:44,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216265269] [2022-01-10 01:38:44,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216265269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:44,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:44,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:38:44,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141268752] [2022-01-10 01:38:44,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:44,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:38:44,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:44,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:38:44,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:38:44,315 INFO L87 Difference]: Start difference. First operand 558 states and 752 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 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 01:38:44,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:44,573 INFO L93 Difference]: Finished difference Result 1050 states and 1437 transitions. [2022-01-10 01:38:44,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:38:44,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-01-10 01:38:44,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:44,577 INFO L225 Difference]: With dead ends: 1050 [2022-01-10 01:38:44,577 INFO L226 Difference]: Without dead ends: 547 [2022-01-10 01:38:44,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:38:44,579 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 1443 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:44,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1443 Valid, 305 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:38:44,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-01-10 01:38:44,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2022-01-10 01:38:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3898305084745763) internal successors, (738), 546 states have internal predecessors, (738), 0 states have call successors, (0), 0 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 01:38:44,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 738 transitions. [2022-01-10 01:38:44,625 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 738 transitions. Word has length 76 [2022-01-10 01:38:44,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:44,626 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 738 transitions. [2022-01-10 01:38:44,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 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 01:38:44,626 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 738 transitions. [2022-01-10 01:38:44,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 01:38:44,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:44,631 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] [2022-01-10 01:38:44,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 01:38:44,632 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:44,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:44,632 INFO L85 PathProgramCache]: Analyzing trace with hash -142744767, now seen corresponding path program 1 times [2022-01-10 01:38:44,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:44,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682485543] [2022-01-10 01:38:44,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:44,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:38:44,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:44,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682485543] [2022-01-10 01:38:44,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682485543] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:44,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:44,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:44,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816157480] [2022-01-10 01:38:44,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:44,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:44,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:44,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:44,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:44,813 INFO L87 Difference]: Start difference. First operand 547 states and 738 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:45,695 INFO L93 Difference]: Finished difference Result 1252 states and 1738 transitions. [2022-01-10 01:38:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:45,695 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-10 01:38:45,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:45,702 INFO L225 Difference]: With dead ends: 1252 [2022-01-10 01:38:45,702 INFO L226 Difference]: Without dead ends: 1112 [2022-01-10 01:38:45,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:45,705 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 1580 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:45,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1580 Valid, 1415 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:38:45,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-01-10 01:38:45,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 547. [2022-01-10 01:38:45,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3879472693032016) internal successors, (737), 546 states have internal predecessors, (737), 0 states have call successors, (0), 0 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 01:38:45,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 737 transitions. [2022-01-10 01:38:45,744 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 737 transitions. Word has length 77 [2022-01-10 01:38:45,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:45,745 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 737 transitions. [2022-01-10 01:38:45,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:45,746 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 737 transitions. [2022-01-10 01:38:45,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 01:38:45,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:45,747 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] [2022-01-10 01:38:45,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 01:38:45,747 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:45,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:45,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2022253705, now seen corresponding path program 1 times [2022-01-10 01:38:45,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:45,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574328372] [2022-01-10 01:38:45,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:45,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:45,942 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 01:38:45,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:45,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574328372] [2022-01-10 01:38:45,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574328372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:45,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:45,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:45,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953511065] [2022-01-10 01:38:45,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:45,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:45,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:45,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:45,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:45,944 INFO L87 Difference]: Start difference. First operand 547 states and 737 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:46,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:46,913 INFO L93 Difference]: Finished difference Result 1153 states and 1585 transitions. [2022-01-10 01:38:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:46,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-10 01:38:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:46,917 INFO L225 Difference]: With dead ends: 1153 [2022-01-10 01:38:46,917 INFO L226 Difference]: Without dead ends: 961 [2022-01-10 01:38:46,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:46,919 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 2707 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2707 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:46,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2707 Valid, 1793 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:38:46,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2022-01-10 01:38:46,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 547. [2022-01-10 01:38:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3860640301318268) internal successors, (736), 546 states have internal predecessors, (736), 0 states have call successors, (0), 0 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 01:38:46,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 736 transitions. [2022-01-10 01:38:46,963 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 736 transitions. Word has length 77 [2022-01-10 01:38:46,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:46,963 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 736 transitions. [2022-01-10 01:38:46,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:46,963 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 736 transitions. [2022-01-10 01:38:46,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 01:38:46,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:46,964 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] [2022-01-10 01:38:46,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 01:38:46,965 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:46,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:46,965 INFO L85 PathProgramCache]: Analyzing trace with hash 679839246, now seen corresponding path program 1 times [2022-01-10 01:38:46,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:46,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294712129] [2022-01-10 01:38:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:46,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:47,126 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 01:38:47,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:47,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294712129] [2022-01-10 01:38:47,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294712129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:47,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:47,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 01:38:47,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459975213] [2022-01-10 01:38:47,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:47,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 01:38:47,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:47,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 01:38:47,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-10 01:38:47,131 INFO L87 Difference]: Start difference. First operand 547 states and 736 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:48,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:48,038 INFO L93 Difference]: Finished difference Result 1256 states and 1743 transitions. [2022-01-10 01:38:48,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 01:38:48,038 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-10 01:38:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:48,042 INFO L225 Difference]: With dead ends: 1256 [2022-01-10 01:38:48,042 INFO L226 Difference]: Without dead ends: 1104 [2022-01-10 01:38:48,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-01-10 01:38:48,044 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 2592 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2592 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:48,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2592 Valid, 1788 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:38:48,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-01-10 01:38:48,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 547. [2022-01-10 01:38:48,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3822975517890772) internal successors, (734), 546 states have internal predecessors, (734), 0 states have call successors, (0), 0 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 01:38:48,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 734 transitions. [2022-01-10 01:38:48,092 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 734 transitions. Word has length 77 [2022-01-10 01:38:48,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:48,092 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 734 transitions. [2022-01-10 01:38:48,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:48,093 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 734 transitions. [2022-01-10 01:38:48,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 01:38:48,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:48,094 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] [2022-01-10 01:38:48,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 01:38:48,094 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:48,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:48,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1232357856, now seen corresponding path program 1 times [2022-01-10 01:38:48,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:48,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193444076] [2022-01-10 01:38:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:48,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:48,217 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 01:38:48,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:48,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193444076] [2022-01-10 01:38:48,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193444076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:48,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:48,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:38:48,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802669997] [2022-01-10 01:38:48,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:48,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 01:38:48,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:48,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 01:38:48,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:38:48,219 INFO L87 Difference]: Start difference. First operand 547 states and 734 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:48,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:48,826 INFO L93 Difference]: Finished difference Result 1054 states and 1396 transitions. [2022-01-10 01:38:48,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 01:38:48,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-10 01:38:48,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:48,830 INFO L225 Difference]: With dead ends: 1054 [2022-01-10 01:38:48,830 INFO L226 Difference]: Without dead ends: 778 [2022-01-10 01:38:48,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-01-10 01:38:48,831 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 2634 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2634 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:48,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2634 Valid, 927 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:38:48,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-01-10 01:38:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 547. [2022-01-10 01:38:48,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3804143126177024) internal successors, (733), 546 states have internal predecessors, (733), 0 states have call successors, (0), 0 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 01:38:48,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 733 transitions. [2022-01-10 01:38:48,878 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 733 transitions. Word has length 77 [2022-01-10 01:38:48,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:48,878 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 733 transitions. [2022-01-10 01:38:48,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:48,879 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 733 transitions. [2022-01-10 01:38:48,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 01:38:48,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:48,880 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] [2022-01-10 01:38:48,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 01:38:48,880 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:48,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:48,881 INFO L85 PathProgramCache]: Analyzing trace with hash -204100811, now seen corresponding path program 1 times [2022-01-10 01:38:48,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:48,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904079306] [2022-01-10 01:38:48,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:48,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:38:49,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:49,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904079306] [2022-01-10 01:38:49,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904079306] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:49,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:49,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:38:49,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681136140] [2022-01-10 01:38:49,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:49,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:38:49,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:49,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:38:49,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:38:49,071 INFO L87 Difference]: Start difference. First operand 547 states and 733 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:51,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:51,219 INFO L93 Difference]: Finished difference Result 2316 states and 3282 transitions. [2022-01-10 01:38:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 01:38:51,219 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 01:38:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:51,227 INFO L225 Difference]: With dead ends: 2316 [2022-01-10 01:38:51,227 INFO L226 Difference]: Without dead ends: 2154 [2022-01-10 01:38:51,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-10 01:38:51,229 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 6133 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6133 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:51,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6133 Valid, 2630 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 01:38:51,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2022-01-10 01:38:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 551. [2022-01-10 01:38:51,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.377570093457944) internal successors, (737), 550 states have internal predecessors, (737), 0 states have call successors, (0), 0 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 01:38:51,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 737 transitions. [2022-01-10 01:38:51,309 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 737 transitions. Word has length 79 [2022-01-10 01:38:51,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:51,309 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 737 transitions. [2022-01-10 01:38:51,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:51,309 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 737 transitions. [2022-01-10 01:38:51,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 01:38:51,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:51,311 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] [2022-01-10 01:38:51,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 01:38:51,311 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:51,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:51,311 INFO L85 PathProgramCache]: Analyzing trace with hash -612946039, now seen corresponding path program 1 times [2022-01-10 01:38:51,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:51,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601830978] [2022-01-10 01:38:51,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:51,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:51,432 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 01:38:51,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:51,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601830978] [2022-01-10 01:38:51,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601830978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:51,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:51,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:51,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817135192] [2022-01-10 01:38:51,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:51,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:51,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:51,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:51,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:51,435 INFO L87 Difference]: Start difference. First operand 551 states and 737 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:52,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:52,287 INFO L93 Difference]: Finished difference Result 1256 states and 1737 transitions. [2022-01-10 01:38:52,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:52,288 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 01:38:52,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:52,292 INFO L225 Difference]: With dead ends: 1256 [2022-01-10 01:38:52,292 INFO L226 Difference]: Without dead ends: 1116 [2022-01-10 01:38:52,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:38:52,296 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 2984 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2984 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:52,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2984 Valid, 1432 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:38:52,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-01-10 01:38:52,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 551. [2022-01-10 01:38:52,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3757009345794393) internal successors, (736), 550 states have internal predecessors, (736), 0 states have call successors, (0), 0 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 01:38:52,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 736 transitions. [2022-01-10 01:38:52,372 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 736 transitions. Word has length 79 [2022-01-10 01:38:52,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:52,372 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 736 transitions. [2022-01-10 01:38:52,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:52,373 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 736 transitions. [2022-01-10 01:38:52,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 01:38:52,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:52,374 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] [2022-01-10 01:38:52,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 01:38:52,374 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:52,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:52,374 INFO L85 PathProgramCache]: Analyzing trace with hash 391973260, now seen corresponding path program 1 times [2022-01-10 01:38:52,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:52,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922416353] [2022-01-10 01:38:52,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:52,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:52,512 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 01:38:52,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:52,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922416353] [2022-01-10 01:38:52,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922416353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:52,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:52,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:52,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443018128] [2022-01-10 01:38:52,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:52,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:52,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:52,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:52,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:52,514 INFO L87 Difference]: Start difference. First operand 551 states and 736 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:53,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:53,445 INFO L93 Difference]: Finished difference Result 1252 states and 1732 transitions. [2022-01-10 01:38:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:53,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 01:38:53,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:53,450 INFO L225 Difference]: With dead ends: 1252 [2022-01-10 01:38:53,450 INFO L226 Difference]: Without dead ends: 1116 [2022-01-10 01:38:53,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:38:53,451 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 3020 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3020 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:53,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3020 Valid, 1400 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:38:53,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-01-10 01:38:53,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 551. [2022-01-10 01:38:53,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3738317757009346) internal successors, (735), 550 states have internal predecessors, (735), 0 states have call successors, (0), 0 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 01:38:53,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 735 transitions. [2022-01-10 01:38:53,537 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 735 transitions. Word has length 79 [2022-01-10 01:38:53,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:53,537 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 735 transitions. [2022-01-10 01:38:53,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 735 transitions. [2022-01-10 01:38:53,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 01:38:53,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:53,539 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] [2022-01-10 01:38:53,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 01:38:53,539 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:53,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:53,540 INFO L85 PathProgramCache]: Analyzing trace with hash -757085498, now seen corresponding path program 1 times [2022-01-10 01:38:53,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:53,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754965540] [2022-01-10 01:38:53,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:53,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:53,660 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 01:38:53,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:53,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754965540] [2022-01-10 01:38:53,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754965540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:53,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:53,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:53,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585555318] [2022-01-10 01:38:53,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:53,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:53,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:53,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:53,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:53,662 INFO L87 Difference]: Start difference. First operand 551 states and 735 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:54,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:54,753 INFO L93 Difference]: Finished difference Result 1289 states and 1786 transitions. [2022-01-10 01:38:54,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:54,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 01:38:54,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:54,757 INFO L225 Difference]: With dead ends: 1289 [2022-01-10 01:38:54,758 INFO L226 Difference]: Without dead ends: 1136 [2022-01-10 01:38:54,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:54,759 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 2541 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2541 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:54,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2541 Valid, 1954 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:38:54,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-01-10 01:38:54,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 551. [2022-01-10 01:38:54,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.37196261682243) internal successors, (734), 550 states have internal predecessors, (734), 0 states have call successors, (0), 0 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 01:38:54,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 734 transitions. [2022-01-10 01:38:54,840 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 734 transitions. Word has length 79 [2022-01-10 01:38:54,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:54,840 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 734 transitions. [2022-01-10 01:38:54,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 734 transitions. [2022-01-10 01:38:54,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 01:38:54,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:54,842 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] [2022-01-10 01:38:54,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 01:38:54,842 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:54,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:54,843 INFO L85 PathProgramCache]: Analyzing trace with hash -125566079, now seen corresponding path program 1 times [2022-01-10 01:38:54,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:54,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403741550] [2022-01-10 01:38:54,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:54,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:54,946 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 01:38:54,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:54,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403741550] [2022-01-10 01:38:54,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403741550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:54,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:54,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:54,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847800111] [2022-01-10 01:38:54,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:54,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:54,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:54,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:54,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:54,949 INFO L87 Difference]: Start difference. First operand 551 states and 734 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:55,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:55,682 INFO L93 Difference]: Finished difference Result 1009 states and 1386 transitions. [2022-01-10 01:38:55,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 01:38:55,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 01:38:55,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:55,685 INFO L225 Difference]: With dead ends: 1009 [2022-01-10 01:38:55,685 INFO L226 Difference]: Without dead ends: 751 [2022-01-10 01:38:55,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-01-10 01:38:55,686 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 2472 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:55,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2472 Valid, 1350 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:38:55,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-01-10 01:38:55,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 551. [2022-01-10 01:38:55,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3682242990654205) internal successors, (732), 550 states have internal predecessors, (732), 0 states have call successors, (0), 0 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 01:38:55,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 732 transitions. [2022-01-10 01:38:55,780 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 732 transitions. Word has length 79 [2022-01-10 01:38:55,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:55,780 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 732 transitions. [2022-01-10 01:38:55,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:55,781 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 732 transitions. [2022-01-10 01:38:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 01:38:55,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:55,782 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] [2022-01-10 01:38:55,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 01:38:55,782 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:55,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:55,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1207195179, now seen corresponding path program 1 times [2022-01-10 01:38:55,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:55,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984272911] [2022-01-10 01:38:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:55,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:55,885 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 01:38:55,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:55,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984272911] [2022-01-10 01:38:55,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984272911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:55,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:55,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:55,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704557114] [2022-01-10 01:38:55,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:55,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:55,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:55,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:55,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:55,887 INFO L87 Difference]: Start difference. First operand 551 states and 732 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:56,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:56,718 INFO L93 Difference]: Finished difference Result 1262 states and 1740 transitions. [2022-01-10 01:38:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:56,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 01:38:56,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:56,721 INFO L225 Difference]: With dead ends: 1262 [2022-01-10 01:38:56,721 INFO L226 Difference]: Without dead ends: 1116 [2022-01-10 01:38:56,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:38:56,722 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 2867 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:56,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2867 Valid, 1502 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:38:56,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-01-10 01:38:56,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 551. [2022-01-10 01:38:56,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3644859813084111) internal successors, (730), 550 states have internal predecessors, (730), 0 states have call successors, (0), 0 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 01:38:56,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 730 transitions. [2022-01-10 01:38:56,811 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 730 transitions. Word has length 79 [2022-01-10 01:38:56,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:56,811 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 730 transitions. [2022-01-10 01:38:56,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 730 transitions. [2022-01-10 01:38:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 01:38:56,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:56,812 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] [2022-01-10 01:38:56,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 01:38:56,813 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:56,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:56,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1616040407, now seen corresponding path program 1 times [2022-01-10 01:38:56,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:56,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429840699] [2022-01-10 01:38:56,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:56,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:56,900 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 01:38:56,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:56,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429840699] [2022-01-10 01:38:56,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429840699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:56,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:56,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:56,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173411972] [2022-01-10 01:38:56,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:56,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:56,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:56,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:56,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:56,902 INFO L87 Difference]: Start difference. First operand 551 states and 730 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:57,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:57,730 INFO L93 Difference]: Finished difference Result 1308 states and 1805 transitions. [2022-01-10 01:38:57,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:57,731 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 01:38:57,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:57,734 INFO L225 Difference]: With dead ends: 1308 [2022-01-10 01:38:57,734 INFO L226 Difference]: Without dead ends: 1136 [2022-01-10 01:38:57,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:57,736 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 2644 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2644 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:57,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2644 Valid, 1787 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:38:57,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-01-10 01:38:57,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 551. [2022-01-10 01:38:57,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.360747663551402) internal successors, (728), 550 states have internal predecessors, (728), 0 states have call successors, (0), 0 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 01:38:57,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 728 transitions. [2022-01-10 01:38:57,827 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 728 transitions. Word has length 79 [2022-01-10 01:38:57,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:57,827 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 728 transitions. [2022-01-10 01:38:57,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:57,828 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 728 transitions. [2022-01-10 01:38:57,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 01:38:57,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:57,829 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] [2022-01-10 01:38:57,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 01:38:57,829 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:57,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:57,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1975429315, now seen corresponding path program 1 times [2022-01-10 01:38:57,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:57,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42421256] [2022-01-10 01:38:57,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:57,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:57,916 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 01:38:57,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:57,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42421256] [2022-01-10 01:38:57,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42421256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:57,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:57,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:57,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831737101] [2022-01-10 01:38:57,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:57,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:57,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:57,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:57,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:57,918 INFO L87 Difference]: Start difference. First operand 551 states and 728 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:58,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:58,801 INFO L93 Difference]: Finished difference Result 1298 states and 1789 transitions. [2022-01-10 01:38:58,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:58,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-01-10 01:38:58,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:58,804 INFO L225 Difference]: With dead ends: 1298 [2022-01-10 01:38:58,804 INFO L226 Difference]: Without dead ends: 1136 [2022-01-10 01:38:58,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:58,805 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1381 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:58,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 1923 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:38:58,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-01-10 01:38:58,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 547. [2022-01-10 01:38:58,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3615819209039548) internal successors, (723), 546 states have internal predecessors, (723), 0 states have call successors, (0), 0 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 01:38:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 723 transitions. [2022-01-10 01:38:58,901 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 723 transitions. Word has length 80 [2022-01-10 01:38:58,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:58,901 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 723 transitions. [2022-01-10 01:38:58,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:58,902 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 723 transitions. [2022-01-10 01:38:58,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:38:58,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:58,903 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] [2022-01-10 01:38:58,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 01:38:58,903 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:38:58,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:58,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2135531548, now seen corresponding path program 1 times [2022-01-10 01:38:58,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:58,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713674918] [2022-01-10 01:38:58,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:58,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:59,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:38:59,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:59,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713674918] [2022-01-10 01:38:59,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713674918] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:59,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:59,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:59,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245043280] [2022-01-10 01:38:59,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:59,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:59,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:59,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:59,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:59,025 INFO L87 Difference]: Start difference. First operand 547 states and 723 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:00,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:00,054 INFO L93 Difference]: Finished difference Result 1221 states and 1672 transitions. [2022-01-10 01:39:00,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:00,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:00,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:00,058 INFO L225 Difference]: With dead ends: 1221 [2022-01-10 01:39:00,058 INFO L226 Difference]: Without dead ends: 1088 [2022-01-10 01:39:00,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:00,059 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 2318 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:00,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2318 Valid, 1961 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:39:00,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-01-10 01:39:00,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 547. [2022-01-10 01:39:00,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.35969868173258) internal successors, (722), 546 states have internal predecessors, (722), 0 states have call successors, (0), 0 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 01:39:00,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 722 transitions. [2022-01-10 01:39:00,139 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 722 transitions. Word has length 81 [2022-01-10 01:39:00,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:00,139 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 722 transitions. [2022-01-10 01:39:00,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:00,139 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 722 transitions. [2022-01-10 01:39:00,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:00,140 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:00,140 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] [2022-01-10 01:39:00,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 01:39:00,141 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:00,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:00,141 INFO L85 PathProgramCache]: Analyzing trace with hash -247238646, now seen corresponding path program 1 times [2022-01-10 01:39:00,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:00,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609777198] [2022-01-10 01:39:00,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:00,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:00,229 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 01:39:00,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:00,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609777198] [2022-01-10 01:39:00,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609777198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:00,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:00,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:00,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225783827] [2022-01-10 01:39:00,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:00,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:00,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:00,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:00,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:00,231 INFO L87 Difference]: Start difference. First operand 547 states and 722 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:01,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:01,206 INFO L93 Difference]: Finished difference Result 1257 states and 1725 transitions. [2022-01-10 01:39:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:01,206 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:01,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:01,209 INFO L225 Difference]: With dead ends: 1257 [2022-01-10 01:39:01,209 INFO L226 Difference]: Without dead ends: 1112 [2022-01-10 01:39:01,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:01,210 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 1302 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:01,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1302 Valid, 1818 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:39:01,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-01-10 01:39:01,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 547. [2022-01-10 01:39:01,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3578154425612052) internal successors, (721), 546 states have internal predecessors, (721), 0 states have call successors, (0), 0 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 01:39:01,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 721 transitions. [2022-01-10 01:39:01,290 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 721 transitions. Word has length 81 [2022-01-10 01:39:01,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:01,291 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 721 transitions. [2022-01-10 01:39:01,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:01,291 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 721 transitions. [2022-01-10 01:39:01,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:01,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:01,292 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] [2022-01-10 01:39:01,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 01:39:01,292 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:01,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:01,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1648828412, now seen corresponding path program 1 times [2022-01-10 01:39:01,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:01,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350986977] [2022-01-10 01:39:01,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:01,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:01,393 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 01:39:01,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:01,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350986977] [2022-01-10 01:39:01,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350986977] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:01,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:01,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:01,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127766170] [2022-01-10 01:39:01,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:01,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:01,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:01,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:01,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:01,395 INFO L87 Difference]: Start difference. First operand 547 states and 721 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:02,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:02,353 INFO L93 Difference]: Finished difference Result 1218 states and 1667 transitions. [2022-01-10 01:39:02,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:02,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:02,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:02,357 INFO L225 Difference]: With dead ends: 1218 [2022-01-10 01:39:02,357 INFO L226 Difference]: Without dead ends: 1088 [2022-01-10 01:39:02,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:02,358 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 2214 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 2179 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:02,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2214 Valid, 2179 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:39:02,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-01-10 01:39:02,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 547. [2022-01-10 01:39:02,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3559322033898304) internal successors, (720), 546 states have internal predecessors, (720), 0 states have call successors, (0), 0 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 01:39:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 720 transitions. [2022-01-10 01:39:02,436 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 720 transitions. Word has length 81 [2022-01-10 01:39:02,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:02,437 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 720 transitions. [2022-01-10 01:39:02,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:02,437 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 720 transitions. [2022-01-10 01:39:02,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:02,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:02,438 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] [2022-01-10 01:39:02,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 01:39:02,438 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:02,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1380394973, now seen corresponding path program 1 times [2022-01-10 01:39:02,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:02,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540541106] [2022-01-10 01:39:02,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:02,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:02,604 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 01:39:02,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:02,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540541106] [2022-01-10 01:39:02,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540541106] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:02,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:02,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:39:02,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195123599] [2022-01-10 01:39:02,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:02,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:39:02,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:02,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:39:02,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:39:02,606 INFO L87 Difference]: Start difference. First operand 547 states and 720 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:04,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:04,453 INFO L93 Difference]: Finished difference Result 1890 states and 2634 transitions. [2022-01-10 01:39:04,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 01:39:04,454 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:04,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:04,458 INFO L225 Difference]: With dead ends: 1890 [2022-01-10 01:39:04,458 INFO L226 Difference]: Without dead ends: 1757 [2022-01-10 01:39:04,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-10 01:39:04,459 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 3888 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3888 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:04,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3888 Valid, 2328 Invalid, 2313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 1848 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:39:04,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2022-01-10 01:39:04,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 551. [2022-01-10 01:39:04,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3532710280373832) internal successors, (724), 550 states have internal predecessors, (724), 0 states have call successors, (0), 0 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 01:39:04,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 724 transitions. [2022-01-10 01:39:04,563 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 724 transitions. Word has length 81 [2022-01-10 01:39:04,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:04,563 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 724 transitions. [2022-01-10 01:39:04,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:04,563 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 724 transitions. [2022-01-10 01:39:04,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:04,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:04,564 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] [2022-01-10 01:39:04,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 01:39:04,565 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:04,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:04,565 INFO L85 PathProgramCache]: Analyzing trace with hash -90069907, now seen corresponding path program 1 times [2022-01-10 01:39:04,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:04,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301078670] [2022-01-10 01:39:04,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:04,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:04,663 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 01:39:04,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:04,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301078670] [2022-01-10 01:39:04,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301078670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:04,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:04,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:04,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900127464] [2022-01-10 01:39:04,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:04,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:04,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:04,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:04,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:04,665 INFO L87 Difference]: Start difference. First operand 551 states and 724 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:05,764 INFO L93 Difference]: Finished difference Result 1218 states and 1665 transitions. [2022-01-10 01:39:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:05,769 INFO L225 Difference]: With dead ends: 1218 [2022-01-10 01:39:05,769 INFO L226 Difference]: Without dead ends: 1088 [2022-01-10 01:39:05,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:05,770 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 2207 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:05,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2207 Valid, 2183 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:39:05,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-01-10 01:39:05,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 551. [2022-01-10 01:39:05,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3514018691588785) internal successors, (723), 550 states have internal predecessors, (723), 0 states have call successors, (0), 0 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 01:39:05,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 723 transitions. [2022-01-10 01:39:05,877 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 723 transitions. Word has length 81 [2022-01-10 01:39:05,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:05,878 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 723 transitions. [2022-01-10 01:39:05,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:05,878 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 723 transitions. [2022-01-10 01:39:05,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:05,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:05,879 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] [2022-01-10 01:39:05,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 01:39:05,879 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:05,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:05,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1355696644, now seen corresponding path program 1 times [2022-01-10 01:39:05,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:05,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56288581] [2022-01-10 01:39:05,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:05,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:06,054 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 01:39:06,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:06,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56288581] [2022-01-10 01:39:06,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56288581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:06,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:06,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:39:06,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521822344] [2022-01-10 01:39:06,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:06,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:39:06,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:06,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:39:06,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:39:06,056 INFO L87 Difference]: Start difference. First operand 551 states and 723 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:07,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:07,918 INFO L93 Difference]: Finished difference Result 1762 states and 2440 transitions. [2022-01-10 01:39:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 01:39:07,918 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:07,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:07,923 INFO L225 Difference]: With dead ends: 1762 [2022-01-10 01:39:07,923 INFO L226 Difference]: Without dead ends: 1757 [2022-01-10 01:39:07,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-10 01:39:07,924 INFO L933 BasicCegarLoop]: 477 mSDtfsCounter, 3343 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3343 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:07,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3343 Valid, 2089 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:39:07,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2022-01-10 01:39:08,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 555. [2022-01-10 01:39:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 539 states have (on average 1.3487940630797774) internal successors, (727), 554 states have internal predecessors, (727), 0 states have call successors, (0), 0 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 01:39:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 727 transitions. [2022-01-10 01:39:08,027 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 727 transitions. Word has length 81 [2022-01-10 01:39:08,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:08,027 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 727 transitions. [2022-01-10 01:39:08,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:08,027 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 727 transitions. [2022-01-10 01:39:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:08,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:08,028 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] [2022-01-10 01:39:08,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 01:39:08,029 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:08,029 INFO L85 PathProgramCache]: Analyzing trace with hash 558624169, now seen corresponding path program 1 times [2022-01-10 01:39:08,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:08,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195745947] [2022-01-10 01:39:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:08,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:08,173 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 01:39:08,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:08,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195745947] [2022-01-10 01:39:08,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195745947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:08,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:08,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:39:08,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858841842] [2022-01-10 01:39:08,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:08,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:39:08,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:08,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:39:08,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:39:08,174 INFO L87 Difference]: Start difference. First operand 555 states and 727 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:10,038 INFO L93 Difference]: Finished difference Result 1884 states and 2625 transitions. [2022-01-10 01:39:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 01:39:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:10,043 INFO L225 Difference]: With dead ends: 1884 [2022-01-10 01:39:10,043 INFO L226 Difference]: Without dead ends: 1754 [2022-01-10 01:39:10,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-10 01:39:10,045 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 4008 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4008 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:10,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4008 Valid, 1870 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:39:10,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-01-10 01:39:10,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 559. [2022-01-10 01:39:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 543 states have (on average 1.3462246777163904) internal successors, (731), 558 states have internal predecessors, (731), 0 states have call successors, (0), 0 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 01:39:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 731 transitions. [2022-01-10 01:39:10,176 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 731 transitions. Word has length 81 [2022-01-10 01:39:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:10,176 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 731 transitions. [2022-01-10 01:39:10,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:10,176 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 731 transitions. [2022-01-10 01:39:10,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:10,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:10,178 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] [2022-01-10 01:39:10,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 01:39:10,178 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:10,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:10,178 INFO L85 PathProgramCache]: Analyzing trace with hash -237124242, now seen corresponding path program 1 times [2022-01-10 01:39:10,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:10,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984461788] [2022-01-10 01:39:10,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:10,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:10,288 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 01:39:10,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:10,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984461788] [2022-01-10 01:39:10,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984461788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:10,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:10,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:10,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381414169] [2022-01-10 01:39:10,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:10,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:10,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:10,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:10,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:10,289 INFO L87 Difference]: Start difference. First operand 559 states and 731 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:11,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:11,303 INFO L93 Difference]: Finished difference Result 1216 states and 1660 transitions. [2022-01-10 01:39:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:11,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:11,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:11,306 INFO L225 Difference]: With dead ends: 1216 [2022-01-10 01:39:11,306 INFO L226 Difference]: Without dead ends: 1088 [2022-01-10 01:39:11,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:11,307 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 2290 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2290 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:11,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2290 Valid, 1981 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:39:11,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-01-10 01:39:11,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 559. [2022-01-10 01:39:11,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 543 states have (on average 1.3443830570902393) internal successors, (730), 558 states have internal predecessors, (730), 0 states have call successors, (0), 0 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 01:39:11,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 730 transitions. [2022-01-10 01:39:11,437 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 730 transitions. Word has length 81 [2022-01-10 01:39:11,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:11,437 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 730 transitions. [2022-01-10 01:39:11,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:11,437 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 730 transitions. [2022-01-10 01:39:11,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:11,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:11,438 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] [2022-01-10 01:39:11,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 01:39:11,439 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:11,439 INFO L85 PathProgramCache]: Analyzing trace with hash -302100420, now seen corresponding path program 1 times [2022-01-10 01:39:11,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:11,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889950965] [2022-01-10 01:39:11,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:11,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:11,545 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 01:39:11,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:11,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889950965] [2022-01-10 01:39:11,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889950965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:11,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:11,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:11,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941290025] [2022-01-10 01:39:11,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:11,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:11,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:11,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:11,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:11,548 INFO L87 Difference]: Start difference. First operand 559 states and 730 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:12,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:12,626 INFO L93 Difference]: Finished difference Result 1224 states and 1668 transitions. [2022-01-10 01:39:12,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:12,627 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:12,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:12,629 INFO L225 Difference]: With dead ends: 1224 [2022-01-10 01:39:12,629 INFO L226 Difference]: Without dead ends: 1088 [2022-01-10 01:39:12,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:12,630 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 2289 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2289 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:12,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2289 Valid, 1981 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:39:12,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-01-10 01:39:12,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 559. [2022-01-10 01:39:12,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 543 states have (on average 1.3406998158379373) internal successors, (728), 558 states have internal predecessors, (728), 0 states have call successors, (0), 0 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 01:39:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 728 transitions. [2022-01-10 01:39:12,764 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 728 transitions. Word has length 81 [2022-01-10 01:39:12,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:12,764 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 728 transitions. [2022-01-10 01:39:12,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:12,765 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 728 transitions. [2022-01-10 01:39:12,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:12,765 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:12,766 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] [2022-01-10 01:39:12,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 01:39:12,766 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:12,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:12,766 INFO L85 PathProgramCache]: Analyzing trace with hash -286808248, now seen corresponding path program 1 times [2022-01-10 01:39:12,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:12,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653930282] [2022-01-10 01:39:12,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:12,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:39:12,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:12,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653930282] [2022-01-10 01:39:12,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653930282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:12,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:12,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:39:12,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772185862] [2022-01-10 01:39:12,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:12,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:39:12,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:12,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:39:12,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:39:12,923 INFO L87 Difference]: Start difference. First operand 559 states and 728 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:15,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:15,156 INFO L93 Difference]: Finished difference Result 2392 states and 3352 transitions. [2022-01-10 01:39:15,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 01:39:15,156 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:15,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:15,160 INFO L225 Difference]: With dead ends: 2392 [2022-01-10 01:39:15,160 INFO L226 Difference]: Without dead ends: 2200 [2022-01-10 01:39:15,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-10 01:39:15,161 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 4085 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:15,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4085 Valid, 2484 Invalid, 2202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 01:39:15,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2022-01-10 01:39:15,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 567. [2022-01-10 01:39:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 551 states have (on average 1.3357531760435573) internal successors, (736), 566 states have internal predecessors, (736), 0 states have call successors, (0), 0 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 01:39:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 736 transitions. [2022-01-10 01:39:15,330 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 736 transitions. Word has length 81 [2022-01-10 01:39:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:15,330 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 736 transitions. [2022-01-10 01:39:15,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 736 transitions. [2022-01-10 01:39:15,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:15,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:15,332 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] [2022-01-10 01:39:15,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 01:39:15,332 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:15,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:15,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1055423202, now seen corresponding path program 1 times [2022-01-10 01:39:15,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:15,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360682999] [2022-01-10 01:39:15,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:15,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:15,456 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 01:39:15,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:15,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360682999] [2022-01-10 01:39:15,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360682999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:15,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:15,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:15,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394091143] [2022-01-10 01:39:15,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:15,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:15,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:15,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:15,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:15,458 INFO L87 Difference]: Start difference. First operand 567 states and 736 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:16,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:16,538 INFO L93 Difference]: Finished difference Result 1101 states and 1479 transitions. [2022-01-10 01:39:16,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:16,538 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:16,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:16,540 INFO L225 Difference]: With dead ends: 1101 [2022-01-10 01:39:16,540 INFO L226 Difference]: Without dead ends: 1096 [2022-01-10 01:39:16,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:16,540 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 2284 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:16,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2284 Valid, 1982 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:39:16,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-01-10 01:39:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 567. [2022-01-10 01:39:16,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 551 states have (on average 1.3321234119782215) internal successors, (734), 566 states have internal predecessors, (734), 0 states have call successors, (0), 0 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 01:39:16,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 734 transitions. [2022-01-10 01:39:16,657 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 734 transitions. Word has length 81 [2022-01-10 01:39:16,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:16,658 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 734 transitions. [2022-01-10 01:39:16,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:16,658 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 734 transitions. [2022-01-10 01:39:16,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:16,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:16,658 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] [2022-01-10 01:39:16,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 01:39:16,659 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:16,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:16,659 INFO L85 PathProgramCache]: Analyzing trace with hash 856773900, now seen corresponding path program 1 times [2022-01-10 01:39:16,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:16,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349828241] [2022-01-10 01:39:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:16,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:16,747 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 01:39:16,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:16,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349828241] [2022-01-10 01:39:16,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349828241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:16,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:16,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:16,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799669148] [2022-01-10 01:39:16,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:16,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:16,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:16,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:16,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:16,749 INFO L87 Difference]: Start difference. First operand 567 states and 734 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:17,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:17,783 INFO L93 Difference]: Finished difference Result 1153 states and 1546 transitions. [2022-01-10 01:39:17,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:17,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:17,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:17,785 INFO L225 Difference]: With dead ends: 1153 [2022-01-10 01:39:17,785 INFO L226 Difference]: Without dead ends: 1136 [2022-01-10 01:39:17,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:17,786 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 1276 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:17,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1276 Valid, 1870 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:39:17,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-01-10 01:39:17,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 567. [2022-01-10 01:39:17,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 551 states have (on average 1.3284936479128857) internal successors, (732), 566 states have internal predecessors, (732), 0 states have call successors, (0), 0 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 01:39:17,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 732 transitions. [2022-01-10 01:39:17,912 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 732 transitions. Word has length 81 [2022-01-10 01:39:17,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:17,912 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 732 transitions. [2022-01-10 01:39:17,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:17,912 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 732 transitions. [2022-01-10 01:39:17,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:17,915 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:17,915 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] [2022-01-10 01:39:17,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 01:39:17,915 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:17,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:17,916 INFO L85 PathProgramCache]: Analyzing trace with hash -544552721, now seen corresponding path program 1 times [2022-01-10 01:39:17,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:17,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256278416] [2022-01-10 01:39:17,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:17,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:18,011 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 01:39:18,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:18,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256278416] [2022-01-10 01:39:18,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256278416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:18,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:18,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:18,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345670052] [2022-01-10 01:39:18,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:18,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:18,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:18,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:18,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:18,013 INFO L87 Difference]: Start difference. First operand 567 states and 732 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:19,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:19,098 INFO L93 Difference]: Finished difference Result 1228 states and 1665 transitions. [2022-01-10 01:39:19,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:19,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:19,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:19,100 INFO L225 Difference]: With dead ends: 1228 [2022-01-10 01:39:19,100 INFO L226 Difference]: Without dead ends: 1096 [2022-01-10 01:39:19,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:19,101 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 2255 mSDsluCounter, 1641 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2255 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:19,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2255 Valid, 2033 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:39:19,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-01-10 01:39:19,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 567. [2022-01-10 01:39:19,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 551 states have (on average 1.32486388384755) internal successors, (730), 566 states have internal predecessors, (730), 0 states have call successors, (0), 0 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 01:39:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 730 transitions. [2022-01-10 01:39:19,235 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 730 transitions. Word has length 81 [2022-01-10 01:39:19,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:19,235 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 730 transitions. [2022-01-10 01:39:19,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:19,235 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 730 transitions. [2022-01-10 01:39:19,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:39:19,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:19,236 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] [2022-01-10 01:39:19,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 01:39:19,237 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:19,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:19,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1810559777, now seen corresponding path program 1 times [2022-01-10 01:39:19,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:19,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057558044] [2022-01-10 01:39:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:19,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:19,393 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 01:39:19,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:19,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057558044] [2022-01-10 01:39:19,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057558044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:19,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:19,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:39:19,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697859233] [2022-01-10 01:39:19,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:19,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:39:19,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:19,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:39:19,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:39:19,395 INFO L87 Difference]: Start difference. First operand 567 states and 730 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:21,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:21,450 INFO L93 Difference]: Finished difference Result 1770 states and 2437 transitions. [2022-01-10 01:39:21,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 01:39:21,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:39:21,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:21,452 INFO L225 Difference]: With dead ends: 1770 [2022-01-10 01:39:21,452 INFO L226 Difference]: Without dead ends: 1765 [2022-01-10 01:39:21,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-10 01:39:21,453 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 4626 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4626 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:21,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4626 Valid, 1931 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:39:21,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2022-01-10 01:39:21,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 575. [2022-01-10 01:39:21,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 559 states have (on average 1.3202146690518783) internal successors, (738), 574 states have internal predecessors, (738), 0 states have call successors, (0), 0 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 01:39:21,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 738 transitions. [2022-01-10 01:39:21,581 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 738 transitions. Word has length 81 [2022-01-10 01:39:21,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:21,581 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 738 transitions. [2022-01-10 01:39:21,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:21,582 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 738 transitions. [2022-01-10 01:39:21,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 01:39:21,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:21,582 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] [2022-01-10 01:39:21,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 01:39:21,583 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:21,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:21,583 INFO L85 PathProgramCache]: Analyzing trace with hash -423596437, now seen corresponding path program 1 times [2022-01-10 01:39:21,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:21,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076791341] [2022-01-10 01:39:21,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:21,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:21,677 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 01:39:21,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:21,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076791341] [2022-01-10 01:39:21,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076791341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:21,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:21,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:21,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214203531] [2022-01-10 01:39:21,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:21,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:21,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:21,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:21,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:21,679 INFO L87 Difference]: Start difference. First operand 575 states and 738 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:22,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:22,690 INFO L93 Difference]: Finished difference Result 1229 states and 1662 transitions. [2022-01-10 01:39:22,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:22,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 01:39:22,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:22,692 INFO L225 Difference]: With dead ends: 1229 [2022-01-10 01:39:22,692 INFO L226 Difference]: Without dead ends: 1096 [2022-01-10 01:39:22,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:22,693 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1845 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:22,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1845 Valid, 1765 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:39:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-01-10 01:39:22,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 571. [2022-01-10 01:39:22,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 555 states have (on average 1.3207207207207208) internal successors, (733), 570 states have internal predecessors, (733), 0 states have call successors, (0), 0 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 01:39:22,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 733 transitions. [2022-01-10 01:39:22,825 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 733 transitions. Word has length 82 [2022-01-10 01:39:22,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:22,826 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 733 transitions. [2022-01-10 01:39:22,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:22,826 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 733 transitions. [2022-01-10 01:39:22,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 01:39:22,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:22,827 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] [2022-01-10 01:39:22,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 01:39:22,827 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:22,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash 656909474, now seen corresponding path program 1 times [2022-01-10 01:39:22,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:22,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788875572] [2022-01-10 01:39:22,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:22,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:22,930 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 01:39:22,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:22,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788875572] [2022-01-10 01:39:22,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788875572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:22,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:22,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:22,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136574701] [2022-01-10 01:39:22,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:22,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:22,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:22,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:22,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:22,932 INFO L87 Difference]: Start difference. First operand 571 states and 733 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:23,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:23,992 INFO L93 Difference]: Finished difference Result 1101 states and 1470 transitions. [2022-01-10 01:39:23,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:23,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 01:39:23,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:23,994 INFO L225 Difference]: With dead ends: 1101 [2022-01-10 01:39:23,994 INFO L226 Difference]: Without dead ends: 1096 [2022-01-10 01:39:23,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:23,995 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1825 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1825 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:23,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1825 Valid, 1783 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:39:23,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-01-10 01:39:24,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 567. [2022-01-10 01:39:24,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 551 states have (on average 1.3212341197822142) internal successors, (728), 566 states have internal predecessors, (728), 0 states have call successors, (0), 0 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 01:39:24,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 728 transitions. [2022-01-10 01:39:24,122 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 728 transitions. Word has length 82 [2022-01-10 01:39:24,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:24,122 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 728 transitions. [2022-01-10 01:39:24,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 728 transitions. [2022-01-10 01:39:24,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 01:39:24,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:24,123 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] [2022-01-10 01:39:24,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 01:39:24,124 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:24,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:24,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1358540439, now seen corresponding path program 1 times [2022-01-10 01:39:24,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:24,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82519249] [2022-01-10 01:39:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:24,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:24,214 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 01:39:24,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:24,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82519249] [2022-01-10 01:39:24,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82519249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:24,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:24,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:24,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387298326] [2022-01-10 01:39:24,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:24,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:24,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:24,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:24,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:24,216 INFO L87 Difference]: Start difference. First operand 567 states and 728 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:25,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:25,361 INFO L93 Difference]: Finished difference Result 1226 states and 1657 transitions. [2022-01-10 01:39:25,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:25,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 01:39:25,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:25,363 INFO L225 Difference]: With dead ends: 1226 [2022-01-10 01:39:25,363 INFO L226 Difference]: Without dead ends: 1096 [2022-01-10 01:39:25,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:25,364 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 2414 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2414 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:25,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2414 Valid, 1781 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:39:25,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-01-10 01:39:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 563. [2022-01-10 01:39:25,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 547 states have (on average 1.3217550274223036) internal successors, (723), 562 states have internal predecessors, (723), 0 states have call successors, (0), 0 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 01:39:25,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 723 transitions. [2022-01-10 01:39:25,490 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 723 transitions. Word has length 82 [2022-01-10 01:39:25,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:25,490 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 723 transitions. [2022-01-10 01:39:25,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:25,490 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 723 transitions. [2022-01-10 01:39:25,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 01:39:25,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:25,491 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] [2022-01-10 01:39:25,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 01:39:25,491 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:25,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:25,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1796987520, now seen corresponding path program 1 times [2022-01-10 01:39:25,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:25,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70387238] [2022-01-10 01:39:25,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:25,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:25,586 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 01:39:25,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:25,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70387238] [2022-01-10 01:39:25,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70387238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:25,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:25,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:25,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083856995] [2022-01-10 01:39:25,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:25,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:25,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:25,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:25,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:25,587 INFO L87 Difference]: Start difference. First operand 563 states and 723 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:26,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:26,656 INFO L93 Difference]: Finished difference Result 1336 states and 1811 transitions. [2022-01-10 01:39:26,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:26,656 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 01:39:26,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:26,658 INFO L225 Difference]: With dead ends: 1336 [2022-01-10 01:39:26,658 INFO L226 Difference]: Without dead ends: 1144 [2022-01-10 01:39:26,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:26,659 INFO L933 BasicCegarLoop]: 548 mSDtfsCounter, 1193 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:26,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1193 Valid, 2114 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:39:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-01-10 01:39:26,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 555. [2022-01-10 01:39:26,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 539 states have (on average 1.3228200371057515) internal successors, (713), 554 states have internal predecessors, (713), 0 states have call successors, (0), 0 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 01:39:26,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 713 transitions. [2022-01-10 01:39:26,797 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 713 transitions. Word has length 82 [2022-01-10 01:39:26,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:26,797 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 713 transitions. [2022-01-10 01:39:26,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:26,798 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 713 transitions. [2022-01-10 01:39:26,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 01:39:26,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:26,798 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] [2022-01-10 01:39:26,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 01:39:26,799 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:26,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:26,799 INFO L85 PathProgramCache]: Analyzing trace with hash -558946144, now seen corresponding path program 1 times [2022-01-10 01:39:26,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:26,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771192768] [2022-01-10 01:39:26,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:26,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:26,887 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 01:39:26,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:26,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771192768] [2022-01-10 01:39:26,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771192768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:26,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:26,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:39:26,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145330496] [2022-01-10 01:39:26,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:26,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:39:26,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:26,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:39:26,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:26,889 INFO L87 Difference]: Start difference. First operand 555 states and 713 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:28,059 INFO L93 Difference]: Finished difference Result 1093 states and 1458 transitions. [2022-01-10 01:39:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:39:28,059 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 01:39:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:28,061 INFO L225 Difference]: With dead ends: 1093 [2022-01-10 01:39:28,061 INFO L226 Difference]: Without dead ends: 1088 [2022-01-10 01:39:28,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:39:28,062 INFO L933 BasicCegarLoop]: 491 mSDtfsCounter, 1422 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:28,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1422 Valid, 1953 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:39:28,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-01-10 01:39:28,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 547. [2022-01-10 01:39:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3239171374764596) internal successors, (703), 546 states have internal predecessors, (703), 0 states have call successors, (0), 0 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 01:39:28,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 703 transitions. [2022-01-10 01:39:28,205 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 703 transitions. Word has length 82 [2022-01-10 01:39:28,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:28,206 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 703 transitions. [2022-01-10 01:39:28,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:28,206 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 703 transitions. [2022-01-10 01:39:28,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 01:39:28,206 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:28,206 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] [2022-01-10 01:39:28,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 01:39:28,207 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:28,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:28,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1687929497, now seen corresponding path program 1 times [2022-01-10 01:39:28,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:28,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985597862] [2022-01-10 01:39:28,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:28,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:28,501 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 01:39:28,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:28,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985597862] [2022-01-10 01:39:28,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985597862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:28,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:28,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-10 01:39:28,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580205953] [2022-01-10 01:39:28,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:28,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 01:39:28,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:28,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 01:39:28,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-10 01:39:28,503 INFO L87 Difference]: Start difference. First operand 547 states and 703 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:30,311 INFO L93 Difference]: Finished difference Result 1380 states and 1793 transitions. [2022-01-10 01:39:30,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 01:39:30,312 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-10 01:39:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:30,314 INFO L225 Difference]: With dead ends: 1380 [2022-01-10 01:39:30,314 INFO L226 Difference]: Without dead ends: 1248 [2022-01-10 01:39:30,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-01-10 01:39:30,315 INFO L933 BasicCegarLoop]: 566 mSDtfsCounter, 2074 mSDsluCounter, 3647 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 4213 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:30,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2074 Valid, 4213 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:39:30,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-01-10 01:39:30,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 543. [2022-01-10 01:39:30,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 528 states have (on average 1.321969696969697) internal successors, (698), 542 states have internal predecessors, (698), 0 states have call successors, (0), 0 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 01:39:30,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 698 transitions. [2022-01-10 01:39:30,497 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 698 transitions. Word has length 83 [2022-01-10 01:39:30,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:30,497 INFO L470 AbstractCegarLoop]: Abstraction has 543 states and 698 transitions. [2022-01-10 01:39:30,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:30,498 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 698 transitions. [2022-01-10 01:39:30,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 01:39:30,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:30,498 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] [2022-01-10 01:39:30,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 01:39:30,498 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:30,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:30,499 INFO L85 PathProgramCache]: Analyzing trace with hash -92587651, now seen corresponding path program 1 times [2022-01-10 01:39:30,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:30,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407195787] [2022-01-10 01:39:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:30,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:30,828 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 01:39:30,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:30,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407195787] [2022-01-10 01:39:30,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407195787] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:30,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:30,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-10 01:39:30,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769243451] [2022-01-10 01:39:30,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:30,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-10 01:39:30,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:30,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-10 01:39:30,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-01-10 01:39:30,830 INFO L87 Difference]: Start difference. First operand 543 states and 698 transitions. Second operand has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:32,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:32,095 INFO L93 Difference]: Finished difference Result 1013 states and 1364 transitions. [2022-01-10 01:39:32,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 01:39:32,095 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-10 01:39:32,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:32,096 INFO L225 Difference]: With dead ends: 1013 [2022-01-10 01:39:32,096 INFO L226 Difference]: Without dead ends: 775 [2022-01-10 01:39:32,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-01-10 01:39:32,098 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 1324 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 4425 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:32,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 4425 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:39:32,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2022-01-10 01:39:32,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 494. [2022-01-10 01:39:32,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 480 states have (on average 1.3208333333333333) internal successors, (634), 493 states have internal predecessors, (634), 0 states have call successors, (0), 0 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 01:39:32,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 634 transitions. [2022-01-10 01:39:32,287 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 634 transitions. Word has length 83 [2022-01-10 01:39:32,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:32,287 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 634 transitions. [2022-01-10 01:39:32,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:39:32,287 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 634 transitions. [2022-01-10 01:39:32,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 01:39:32,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:32,288 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] [2022-01-10 01:39:32,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 01:39:32,288 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-01-10 01:39:32,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:32,288 INFO L85 PathProgramCache]: Analyzing trace with hash -119228615, now seen corresponding path program 1 times [2022-01-10 01:39:32,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:32,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229392867] [2022-01-10 01:39:32,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:32,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:32,539 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 01:39:32,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:32,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229392867] [2022-01-10 01:39:32,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229392867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:32,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:32,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-10 01:39:32,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366792308] [2022-01-10 01:39:32,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:32,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:39:32,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:32,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:39:32,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:39:32,540 INFO L87 Difference]: Start difference. First operand 494 states and 634 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)