/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:34:36,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:34:36,143 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 03:34:36,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:34:36,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:34:36,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:34:36,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:34:36,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:34:36,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:34:36,175 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:34:36,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:34:36,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:34:36,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:34:36,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:34:36,177 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:34:36,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:34:36,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:34:36,178 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:34:36,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:34:36,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:34:36,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:34:36,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:34:36,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:34:36,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:34:36,179 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:34:36,180 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:34:36,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:34:36,180 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:34:36,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:34:36,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:34:36,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:34:36,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:34:36,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:34:36,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:34:36,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:34:36,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:34:36,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:34:36,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:34:36,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:34:36,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:34:36,183 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:34:36,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:34:36,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:34:36,183 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:34:36,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:34:36,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:34:36,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:34:36,417 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:34:36,419 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:34:36,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-12-20 03:34:37,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:34:37,829 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:34:37,830 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-12-20 03:34:37,851 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da3751e3/8035a0572af04f61b0483963e2c26fe5/FLAG65218f376 [2023-12-20 03:34:37,862 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da3751e3/8035a0572af04f61b0483963e2c26fe5 [2023-12-20 03:34:37,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:34:37,865 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:34:37,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:34:37,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:34:37,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:34:37,870 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:34:37" (1/1) ... [2023-12-20 03:34:37,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5194cb58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:37, skipping insertion in model container [2023-12-20 03:34:37,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:34:37" (1/1) ... [2023-12-20 03:34:37,957 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:34:38,242 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-12-20 03:34:38,266 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-12-20 03:34:38,276 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-12-20 03:34:38,280 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-12-20 03:34:38,292 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-12-20 03:34:38,299 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-12-20 03:34:38,303 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-12-20 03:34:38,324 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-12-20 03:34:38,329 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-12-20 03:34:38,333 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-12-20 03:34:38,340 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-12-20 03:34:38,357 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-12-20 03:34:38,361 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-12-20 03:34:38,365 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-12-20 03:34:38,373 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-12-20 03:34:38,387 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-12-20 03:34:38,411 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-12-20 03:34:38,414 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-12-20 03:34:38,423 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-12-20 03:34:38,429 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-12-20 03:34:38,440 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-12-20 03:34:38,455 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-12-20 03:34:38,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:34:38,738 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:34:38,779 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-12-20 03:34:38,787 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-12-20 03:34:38,791 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-12-20 03:34:38,794 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-12-20 03:34:38,798 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-12-20 03:34:38,801 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-12-20 03:34:38,806 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-12-20 03:34:38,812 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-12-20 03:34:38,814 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-12-20 03:34:38,817 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-12-20 03:34:38,822 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-12-20 03:34:38,831 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-12-20 03:34:38,833 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-12-20 03:34:38,836 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-12-20 03:34:38,843 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-12-20 03:34:38,851 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-12-20 03:34:38,868 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-12-20 03:34:38,871 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-12-20 03:34:38,874 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-12-20 03:34:38,878 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-12-20 03:34:38,885 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-12-20 03:34:38,900 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-12-20 03:34:39,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:34:39,083 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:34:39,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39 WrapperNode [2023-12-20 03:34:39,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:34:39,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:34:39,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:34:39,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:34:39,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,274 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7077 [2023-12-20 03:34:39,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:34:39,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:34:39,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:34:39,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:34:39,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,303 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,352 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 03:34:39,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,433 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:34:39,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:34:39,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:34:39,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:34:39,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (1/1) ... [2023-12-20 03:34:39,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:34:39,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:34:39,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 03:34:39,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 03:34:39,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:34:39,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:34:39,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:34:39,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:34:39,675 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:34:39,677 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:34:41,740 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:34:41,790 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:34:41,790 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 03:34:41,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:34:41 BoogieIcfgContainer [2023-12-20 03:34:41,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:34:41,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:34:41,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:34:41,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:34:41,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:34:37" (1/3) ... [2023-12-20 03:34:41,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2326b7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:34:41, skipping insertion in model container [2023-12-20 03:34:41,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:34:39" (2/3) ... [2023-12-20 03:34:41,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2326b7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:34:41, skipping insertion in model container [2023-12-20 03:34:41,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:34:41" (3/3) ... [2023-12-20 03:34:41,796 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-12-20 03:34:41,807 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:34:41,807 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-12-20 03:34:41,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:34:41,864 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c9ca806, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:34:41,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-12-20 03:34:41,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 1129 states, 1106 states have (on average 1.8571428571428572) internal successors, (2054), 1128 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:41,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 03:34:41,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:41,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:41,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:41,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:41,888 INFO L85 PathProgramCache]: Analyzing trace with hash 714056904, now seen corresponding path program 1 times [2023-12-20 03:34:41,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:41,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679815639] [2023-12-20 03:34:41,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:41,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:42,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:42,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:42,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679815639] [2023-12-20 03:34:42,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679815639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:42,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:42,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:34:42,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275286590] [2023-12-20 03:34:42,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:42,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:34:42,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:42,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:34:42,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:34:42,390 INFO L87 Difference]: Start difference. First operand has 1129 states, 1106 states have (on average 1.8571428571428572) internal successors, (2054), 1128 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:42,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:42,950 INFO L93 Difference]: Finished difference Result 1710 states and 3007 transitions. [2023-12-20 03:34:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:34:42,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-20 03:34:42,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:42,969 INFO L225 Difference]: With dead ends: 1710 [2023-12-20 03:34:42,969 INFO L226 Difference]: Without dead ends: 883 [2023-12-20 03:34:42,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:34:42,983 INFO L413 NwaCegarLoop]: 1023 mSDtfsCounter, 4520 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:42,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 1063 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:34:42,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2023-12-20 03:34:43,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2023-12-20 03:34:43,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 861 states have (on average 1.3147502903600465) internal successors, (1132), 882 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1132 transitions. [2023-12-20 03:34:43,044 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1132 transitions. Word has length 85 [2023-12-20 03:34:43,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:43,045 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1132 transitions. [2023-12-20 03:34:43,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1132 transitions. [2023-12-20 03:34:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-20 03:34:43,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:43,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:43,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:34:43,048 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:43,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:43,048 INFO L85 PathProgramCache]: Analyzing trace with hash -32531416, now seen corresponding path program 1 times [2023-12-20 03:34:43,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:43,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349582573] [2023-12-20 03:34:43,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:43,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:43,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:43,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:43,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349582573] [2023-12-20 03:34:43,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349582573] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:43,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:43,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:34:43,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994977572] [2023-12-20 03:34:43,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:43,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:34:43,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:43,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:34:43,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:34:43,184 INFO L87 Difference]: Start difference. First operand 883 states and 1132 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:43,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:43,527 INFO L93 Difference]: Finished difference Result 1458 states and 1925 transitions. [2023-12-20 03:34:43,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:34:43,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-20 03:34:43,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:43,530 INFO L225 Difference]: With dead ends: 1458 [2023-12-20 03:34:43,530 INFO L226 Difference]: Without dead ends: 752 [2023-12-20 03:34:43,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:34:43,535 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 2900 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2900 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:43,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2900 Valid, 574 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:34:43,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-12-20 03:34:43,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2023-12-20 03:34:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 730 states have (on average 1.347945205479452) internal successors, (984), 751 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:43,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 984 transitions. [2023-12-20 03:34:43,555 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 984 transitions. Word has length 86 [2023-12-20 03:34:43,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:43,557 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 984 transitions. [2023-12-20 03:34:43,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 984 transitions. [2023-12-20 03:34:43,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-20 03:34:43,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:43,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:43,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:34:43,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:43,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:43,573 INFO L85 PathProgramCache]: Analyzing trace with hash -15254791, now seen corresponding path program 1 times [2023-12-20 03:34:43,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:43,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450410347] [2023-12-20 03:34:43,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:43,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:43,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:43,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:43,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450410347] [2023-12-20 03:34:43,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450410347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:43,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:43,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:34:43,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021221047] [2023-12-20 03:34:43,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:43,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:34:43,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:43,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:34:43,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:34:43,766 INFO L87 Difference]: Start difference. First operand 752 states and 984 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:44,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:44,234 INFO L93 Difference]: Finished difference Result 1327 states and 1776 transitions. [2023-12-20 03:34:44,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:34:44,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-20 03:34:44,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:44,237 INFO L225 Difference]: With dead ends: 1327 [2023-12-20 03:34:44,237 INFO L226 Difference]: Without dead ends: 712 [2023-12-20 03:34:44,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:34:44,240 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 2670 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2670 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:44,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2670 Valid, 471 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:34:44,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-12-20 03:34:44,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2023-12-20 03:34:44,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 690 states have (on average 1.355072463768116) internal successors, (935), 711 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:44,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 935 transitions. [2023-12-20 03:34:44,254 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 935 transitions. Word has length 87 [2023-12-20 03:34:44,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:44,255 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 935 transitions. [2023-12-20 03:34:44,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:44,256 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 935 transitions. [2023-12-20 03:34:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-20 03:34:44,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:44,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:44,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 03:34:44,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:44,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:44,258 INFO L85 PathProgramCache]: Analyzing trace with hash -792677777, now seen corresponding path program 1 times [2023-12-20 03:34:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:44,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602908294] [2023-12-20 03:34:44,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:44,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:44,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:44,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:44,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602908294] [2023-12-20 03:34:44,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602908294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:44,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:44,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:34:44,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110294169] [2023-12-20 03:34:44,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:44,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:34:44,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:44,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:34:44,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:34:44,389 INFO L87 Difference]: Start difference. First operand 712 states and 935 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:44,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:44,726 INFO L93 Difference]: Finished difference Result 1287 states and 1726 transitions. [2023-12-20 03:34:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:34:44,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-20 03:34:44,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:44,730 INFO L225 Difference]: With dead ends: 1287 [2023-12-20 03:34:44,730 INFO L226 Difference]: Without dead ends: 674 [2023-12-20 03:34:44,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:34:44,732 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 2585 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2585 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:44,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2585 Valid, 511 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:34:44,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2023-12-20 03:34:44,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 674. [2023-12-20 03:34:44,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 652 states have (on average 1.3680981595092025) internal successors, (892), 673 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:44,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 892 transitions. [2023-12-20 03:34:44,741 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 892 transitions. Word has length 88 [2023-12-20 03:34:44,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:44,741 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 892 transitions. [2023-12-20 03:34:44,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:44,742 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 892 transitions. [2023-12-20 03:34:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-20 03:34:44,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:44,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:44,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 03:34:44,746 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:44,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:44,747 INFO L85 PathProgramCache]: Analyzing trace with hash -98223662, now seen corresponding path program 1 times [2023-12-20 03:34:44,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:44,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657301009] [2023-12-20 03:34:44,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:44,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:44,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:44,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657301009] [2023-12-20 03:34:44,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657301009] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:44,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:44,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:34:44,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544116174] [2023-12-20 03:34:44,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:44,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:34:44,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:44,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:34:44,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:34:44,851 INFO L87 Difference]: Start difference. First operand 674 states and 892 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:45,157 INFO L93 Difference]: Finished difference Result 1249 states and 1682 transitions. [2023-12-20 03:34:45,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:34:45,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-20 03:34:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:45,160 INFO L225 Difference]: With dead ends: 1249 [2023-12-20 03:34:45,160 INFO L226 Difference]: Without dead ends: 649 [2023-12-20 03:34:45,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:34:45,161 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 2528 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2528 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:45,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2528 Valid, 498 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:34:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-12-20 03:34:45,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2023-12-20 03:34:45,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3779904306220097) internal successors, (864), 648 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:45,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 864 transitions. [2023-12-20 03:34:45,172 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 864 transitions. Word has length 89 [2023-12-20 03:34:45,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:45,173 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 864 transitions. [2023-12-20 03:34:45,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:45,173 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 864 transitions. [2023-12-20 03:34:45,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-20 03:34:45,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:45,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:45,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 03:34:45,174 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:45,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:45,175 INFO L85 PathProgramCache]: Analyzing trace with hash -887858356, now seen corresponding path program 1 times [2023-12-20 03:34:45,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:45,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780817743] [2023-12-20 03:34:45,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:45,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:45,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:45,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780817743] [2023-12-20 03:34:45,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780817743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:45,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:45,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:34:45,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470943509] [2023-12-20 03:34:45,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:45,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:34:45,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:45,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:34:45,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:34:45,288 INFO L87 Difference]: Start difference. First operand 649 states and 864 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:45,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:45,659 INFO L93 Difference]: Finished difference Result 1224 states and 1653 transitions. [2023-12-20 03:34:45,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:34:45,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-20 03:34:45,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:45,661 INFO L225 Difference]: With dead ends: 1224 [2023-12-20 03:34:45,661 INFO L226 Difference]: Without dead ends: 641 [2023-12-20 03:34:45,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:34:45,663 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 2451 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:45,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2451 Valid, 474 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:34:45,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-12-20 03:34:45,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2023-12-20 03:34:45,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3796445880452342) internal successors, (854), 640 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:45,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 854 transitions. [2023-12-20 03:34:45,671 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 854 transitions. Word has length 90 [2023-12-20 03:34:45,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:45,672 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 854 transitions. [2023-12-20 03:34:45,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:45,672 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 854 transitions. [2023-12-20 03:34:45,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:34:45,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:45,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:45,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 03:34:45,673 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:45,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:45,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1395319451, now seen corresponding path program 1 times [2023-12-20 03:34:45,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:45,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385661487] [2023-12-20 03:34:45,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:45,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:45,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:45,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:45,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385661487] [2023-12-20 03:34:45,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385661487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:45,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:45,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:34:45,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196664790] [2023-12-20 03:34:45,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:45,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:34:45,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:45,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:34:45,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:34:45,940 INFO L87 Difference]: Start difference. First operand 641 states and 854 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:46,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:46,880 INFO L93 Difference]: Finished difference Result 1231 states and 1667 transitions. [2023-12-20 03:34:46,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:34:46,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-20 03:34:46,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:46,885 INFO L225 Difference]: With dead ends: 1231 [2023-12-20 03:34:46,885 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:34:46,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:34:46,886 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 3932 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3932 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:46,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3932 Valid, 2226 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:34:46,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:34:46,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-20 03:34:46,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3780290791599354) internal successors, (853), 640 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:46,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 853 transitions. [2023-12-20 03:34:46,898 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 853 transitions. Word has length 91 [2023-12-20 03:34:46,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:46,898 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 853 transitions. [2023-12-20 03:34:46,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:46,899 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 853 transitions. [2023-12-20 03:34:46,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:34:46,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:46,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:46,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 03:34:46,900 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:46,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:46,900 INFO L85 PathProgramCache]: Analyzing trace with hash 897316485, now seen corresponding path program 1 times [2023-12-20 03:34:46,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:46,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915438568] [2023-12-20 03:34:46,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:46,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:47,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:47,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:47,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915438568] [2023-12-20 03:34:47,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915438568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:47,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:47,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:34:47,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346091685] [2023-12-20 03:34:47,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:47,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:34:47,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:47,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:34:47,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:34:47,280 INFO L87 Difference]: Start difference. First operand 641 states and 853 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:48,658 INFO L93 Difference]: Finished difference Result 1326 states and 1781 transitions. [2023-12-20 03:34:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 03:34:48,658 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-20 03:34:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:48,661 INFO L225 Difference]: With dead ends: 1326 [2023-12-20 03:34:48,661 INFO L226 Difference]: Without dead ends: 1217 [2023-12-20 03:34:48,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2023-12-20 03:34:48,662 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 2948 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2948 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:48,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2948 Valid, 3013 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 03:34:48,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2023-12-20 03:34:48,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 650. [2023-12-20 03:34:48,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.377388535031847) internal successors, (865), 649 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:48,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 865 transitions. [2023-12-20 03:34:48,674 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 865 transitions. Word has length 91 [2023-12-20 03:34:48,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:48,674 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 865 transitions. [2023-12-20 03:34:48,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:48,675 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 865 transitions. [2023-12-20 03:34:48,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:34:48,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:48,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:48,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 03:34:48,676 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:48,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:48,676 INFO L85 PathProgramCache]: Analyzing trace with hash 488471257, now seen corresponding path program 1 times [2023-12-20 03:34:48,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:48,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567576214] [2023-12-20 03:34:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:48,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:48,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:48,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567576214] [2023-12-20 03:34:48,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567576214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:48,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:48,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:34:48,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33968265] [2023-12-20 03:34:48,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:48,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:34:48,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:48,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:34:48,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:34:48,982 INFO L87 Difference]: Start difference. First operand 650 states and 865 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:50,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:50,141 INFO L93 Difference]: Finished difference Result 1337 states and 1816 transitions. [2023-12-20 03:34:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:34:50,142 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-20 03:34:50,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:50,145 INFO L225 Difference]: With dead ends: 1337 [2023-12-20 03:34:50,145 INFO L226 Difference]: Without dead ends: 1143 [2023-12-20 03:34:50,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:34:50,146 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 2300 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2300 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:50,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2300 Valid, 2819 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:34:50,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2023-12-20 03:34:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 641. [2023-12-20 03:34:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3764135702746365) internal successors, (852), 640 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 852 transitions. [2023-12-20 03:34:50,158 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 852 transitions. Word has length 91 [2023-12-20 03:34:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:50,158 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 852 transitions. [2023-12-20 03:34:50,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 852 transitions. [2023-12-20 03:34:50,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:34:50,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:50,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:50,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 03:34:50,160 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:50,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:50,160 INFO L85 PathProgramCache]: Analyzing trace with hash -977341548, now seen corresponding path program 1 times [2023-12-20 03:34:50,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:50,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314347397] [2023-12-20 03:34:50,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:50,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:50,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:50,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314347397] [2023-12-20 03:34:50,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314347397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:50,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:50,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 03:34:50,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193017966] [2023-12-20 03:34:50,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:50,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 03:34:50,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:50,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 03:34:50,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-20 03:34:50,411 INFO L87 Difference]: Start difference. First operand 641 states and 852 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:51,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:51,502 INFO L93 Difference]: Finished difference Result 1236 states and 1669 transitions. [2023-12-20 03:34:51,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 03:34:51,503 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-20 03:34:51,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:51,506 INFO L225 Difference]: With dead ends: 1236 [2023-12-20 03:34:51,506 INFO L226 Difference]: Without dead ends: 1127 [2023-12-20 03:34:51,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2023-12-20 03:34:51,507 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 4175 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4175 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:51,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4175 Valid, 2977 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:34:51,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-12-20 03:34:51,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 641. [2023-12-20 03:34:51,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3747980613893376) internal successors, (851), 640 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:51,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 851 transitions. [2023-12-20 03:34:51,516 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 851 transitions. Word has length 91 [2023-12-20 03:34:51,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:51,517 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 851 transitions. [2023-12-20 03:34:51,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 851 transitions. [2023-12-20 03:34:51,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:34:51,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:51,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:51,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 03:34:51,518 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:51,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:51,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1386186776, now seen corresponding path program 1 times [2023-12-20 03:34:51,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:51,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893640178] [2023-12-20 03:34:51,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:51,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:51,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:51,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893640178] [2023-12-20 03:34:51,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893640178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:51,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:51,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:34:51,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988534062] [2023-12-20 03:34:51,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:51,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:34:51,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:51,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:34:51,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:34:51,741 INFO L87 Difference]: Start difference. First operand 641 states and 851 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:52,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:52,361 INFO L93 Difference]: Finished difference Result 1211 states and 1565 transitions. [2023-12-20 03:34:52,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:34:52,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-20 03:34:52,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:52,364 INFO L225 Difference]: With dead ends: 1211 [2023-12-20 03:34:52,364 INFO L226 Difference]: Without dead ends: 864 [2023-12-20 03:34:52,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:34:52,365 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 2836 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:52,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 1043 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:34:52,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2023-12-20 03:34:52,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 641. [2023-12-20 03:34:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3731825525040389) internal successors, (850), 640 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:52,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 850 transitions. [2023-12-20 03:34:52,373 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 850 transitions. Word has length 91 [2023-12-20 03:34:52,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:52,373 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 850 transitions. [2023-12-20 03:34:52,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:52,374 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 850 transitions. [2023-12-20 03:34:52,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:34:52,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:52,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:52,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 03:34:52,375 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:52,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:52,375 INFO L85 PathProgramCache]: Analyzing trace with hash 212783759, now seen corresponding path program 1 times [2023-12-20 03:34:52,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:52,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539556626] [2023-12-20 03:34:52,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:52,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:52,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:52,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:52,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539556626] [2023-12-20 03:34:52,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539556626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:52,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:52,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:34:52,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838491312] [2023-12-20 03:34:52,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:52,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:34:52,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:52,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:34:52,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:34:52,588 INFO L87 Difference]: Start difference. First operand 641 states and 850 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:53,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:53,631 INFO L93 Difference]: Finished difference Result 1366 states and 1838 transitions. [2023-12-20 03:34:53,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:34:53,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:34:53,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:53,637 INFO L225 Difference]: With dead ends: 1366 [2023-12-20 03:34:53,637 INFO L226 Difference]: Without dead ends: 1143 [2023-12-20 03:34:53,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:34:53,638 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 2995 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2995 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:53,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2995 Valid, 2940 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:34:53,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2023-12-20 03:34:53,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 641. [2023-12-20 03:34:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.37156704361874) internal successors, (849), 640 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 849 transitions. [2023-12-20 03:34:53,646 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 849 transitions. Word has length 93 [2023-12-20 03:34:53,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:53,646 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 849 transitions. [2023-12-20 03:34:53,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:53,647 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 849 transitions. [2023-12-20 03:34:53,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:34:53,647 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:53,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:53,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 03:34:53,648 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:53,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:53,648 INFO L85 PathProgramCache]: Analyzing trace with hash 426483258, now seen corresponding path program 1 times [2023-12-20 03:34:53,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:53,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094821829] [2023-12-20 03:34:53,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:53,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:53,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:53,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094821829] [2023-12-20 03:34:53,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094821829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:53,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:53,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:34:53,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618491036] [2023-12-20 03:34:53,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:53,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:34:53,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:53,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:34:53,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:34:53,817 INFO L87 Difference]: Start difference. First operand 641 states and 849 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:54,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:54,771 INFO L93 Difference]: Finished difference Result 1231 states and 1661 transitions. [2023-12-20 03:34:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:34:54,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:34:54,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:54,775 INFO L225 Difference]: With dead ends: 1231 [2023-12-20 03:34:54,775 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:34:54,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:34:54,778 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 2489 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:54,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 2293 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:34:54,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:34:54,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-20 03:34:54,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.369951534733441) internal successors, (848), 640 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:54,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 848 transitions. [2023-12-20 03:34:54,791 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 848 transitions. Word has length 93 [2023-12-20 03:34:54,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:54,791 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 848 transitions. [2023-12-20 03:34:54,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:54,791 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 848 transitions. [2023-12-20 03:34:54,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:34:54,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:54,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:54,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 03:34:54,793 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:54,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:54,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1453025680, now seen corresponding path program 1 times [2023-12-20 03:34:54,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:54,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774010515] [2023-12-20 03:34:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:54,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:54,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:54,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:54,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774010515] [2023-12-20 03:34:54,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774010515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:54,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:54,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:34:54,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964024391] [2023-12-20 03:34:54,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:54,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:34:54,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:54,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:34:54,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:34:54,969 INFO L87 Difference]: Start difference. First operand 641 states and 848 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:55,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:55,922 INFO L93 Difference]: Finished difference Result 1240 states and 1667 transitions. [2023-12-20 03:34:55,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:34:55,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:34:55,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:55,926 INFO L225 Difference]: With dead ends: 1240 [2023-12-20 03:34:55,926 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:34:55,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:34:55,927 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 3850 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3850 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:55,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3850 Valid, 2281 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:34:55,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:34:55,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-20 03:34:55,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.368336025848142) internal successors, (847), 640 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 847 transitions. [2023-12-20 03:34:55,936 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 847 transitions. Word has length 93 [2023-12-20 03:34:55,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:55,936 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 847 transitions. [2023-12-20 03:34:55,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:55,937 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 847 transitions. [2023-12-20 03:34:55,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:34:55,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:55,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:55,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 03:34:55,938 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:55,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:55,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1861870908, now seen corresponding path program 1 times [2023-12-20 03:34:55,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:55,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273147282] [2023-12-20 03:34:55,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:55,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:56,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:56,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273147282] [2023-12-20 03:34:56,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273147282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:56,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:56,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:34:56,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135105891] [2023-12-20 03:34:56,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:56,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:34:56,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:56,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:34:56,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:34:56,122 INFO L87 Difference]: Start difference. First operand 641 states and 847 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:57,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:57,176 INFO L93 Difference]: Finished difference Result 1278 states and 1724 transitions. [2023-12-20 03:34:57,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:34:57,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:34:57,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:57,180 INFO L225 Difference]: With dead ends: 1278 [2023-12-20 03:34:57,180 INFO L226 Difference]: Without dead ends: 1139 [2023-12-20 03:34:57,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:34:57,190 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 2975 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 2524 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 3286 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:57,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2975 Valid, 3286 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2524 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:34:57,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-20 03:34:57,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 641. [2023-12-20 03:34:57,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3667205169628434) internal successors, (846), 640 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:57,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 846 transitions. [2023-12-20 03:34:57,198 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 846 transitions. Word has length 93 [2023-12-20 03:34:57,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:57,199 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 846 transitions. [2023-12-20 03:34:57,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:57,199 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 846 transitions. [2023-12-20 03:34:57,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:34:57,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:57,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:57,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 03:34:57,200 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:57,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:57,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1321108389, now seen corresponding path program 1 times [2023-12-20 03:34:57,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:57,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101145134] [2023-12-20 03:34:57,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:57,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:57,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:57,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101145134] [2023-12-20 03:34:57,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101145134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:57,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:57,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:34:57,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071396915] [2023-12-20 03:34:57,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:57,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:34:57,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:57,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:34:57,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:34:57,405 INFO L87 Difference]: Start difference. First operand 641 states and 846 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:58,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:58,355 INFO L93 Difference]: Finished difference Result 1240 states and 1666 transitions. [2023-12-20 03:34:58,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:34:58,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:34:58,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:58,359 INFO L225 Difference]: With dead ends: 1240 [2023-12-20 03:34:58,359 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:34:58,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:34:58,360 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 2775 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2775 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:58,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2775 Valid, 2271 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:34:58,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:34:58,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-20 03:34:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3651050080775444) internal successors, (845), 640 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:58,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 845 transitions. [2023-12-20 03:34:58,369 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 845 transitions. Word has length 93 [2023-12-20 03:34:58,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:58,370 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 845 transitions. [2023-12-20 03:34:58,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:58,370 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 845 transitions. [2023-12-20 03:34:58,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:34:58,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:58,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:58,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 03:34:58,371 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:58,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:58,371 INFO L85 PathProgramCache]: Analyzing trace with hash 912263161, now seen corresponding path program 1 times [2023-12-20 03:34:58,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:58,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236876390] [2023-12-20 03:34:58,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:58,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:58,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:58,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236876390] [2023-12-20 03:34:58,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236876390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:58,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:58,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:34:58,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564434842] [2023-12-20 03:34:58,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:58,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:34:58,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:58,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:34:58,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:34:58,559 INFO L87 Difference]: Start difference. First operand 641 states and 845 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:59,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:34:59,650 INFO L93 Difference]: Finished difference Result 1278 states and 1724 transitions. [2023-12-20 03:34:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:34:59,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:34:59,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:34:59,653 INFO L225 Difference]: With dead ends: 1278 [2023-12-20 03:34:59,653 INFO L226 Difference]: Without dead ends: 1139 [2023-12-20 03:34:59,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:34:59,654 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 3272 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:34:59,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3272 Valid, 3113 Invalid, 2366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:34:59,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-20 03:34:59,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 641. [2023-12-20 03:34:59,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3634894991922455) internal successors, (844), 640 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 844 transitions. [2023-12-20 03:34:59,663 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 844 transitions. Word has length 93 [2023-12-20 03:34:59,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:34:59,663 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 844 transitions. [2023-12-20 03:34:59,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:34:59,663 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 844 transitions. [2023-12-20 03:34:59,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:34:59,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:34:59,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:34:59,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 03:34:59,665 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:34:59,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:34:59,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1094349969, now seen corresponding path program 1 times [2023-12-20 03:34:59,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:34:59,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896295952] [2023-12-20 03:34:59,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:34:59,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:34:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:34:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:34:59,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:34:59,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896295952] [2023-12-20 03:34:59,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896295952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:34:59,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:34:59,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:34:59,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792604062] [2023-12-20 03:34:59,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:34:59,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:34:59,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:34:59,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:34:59,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:34:59,832 INFO L87 Difference]: Start difference. First operand 641 states and 844 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:00,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:00,754 INFO L93 Difference]: Finished difference Result 1231 states and 1655 transitions. [2023-12-20 03:35:00,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:00,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:35:00,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:00,767 INFO L225 Difference]: With dead ends: 1231 [2023-12-20 03:35:00,767 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:35:00,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:00,769 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 3418 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:00,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3418 Valid, 2666 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:35:00,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:35:00,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-20 03:35:00,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3618739903069468) internal successors, (843), 640 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:00,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 843 transitions. [2023-12-20 03:35:00,780 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 843 transitions. Word has length 93 [2023-12-20 03:35:00,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:00,780 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 843 transitions. [2023-12-20 03:35:00,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:00,780 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 843 transitions. [2023-12-20 03:35:00,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:35:00,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:00,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:00,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 03:35:00,781 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:00,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:00,782 INFO L85 PathProgramCache]: Analyzing trace with hash -742152744, now seen corresponding path program 1 times [2023-12-20 03:35:00,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:00,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179355501] [2023-12-20 03:35:00,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:00,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:01,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:01,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179355501] [2023-12-20 03:35:01,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179355501] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:01,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:01,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:01,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596499160] [2023-12-20 03:35:01,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:01,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:01,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:01,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:01,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:01,004 INFO L87 Difference]: Start difference. First operand 641 states and 843 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:01,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:01,868 INFO L93 Difference]: Finished difference Result 1264 states and 1706 transitions. [2023-12-20 03:35:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:01,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:35:01,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:01,886 INFO L225 Difference]: With dead ends: 1264 [2023-12-20 03:35:01,886 INFO L226 Difference]: Without dead ends: 1139 [2023-12-20 03:35:01,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:01,887 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 3238 mSDsluCounter, 2863 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:01,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 3685 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:35:01,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-20 03:35:01,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 641. [2023-12-20 03:35:01,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3602584814216478) internal successors, (842), 640 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:01,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 842 transitions. [2023-12-20 03:35:01,900 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 842 transitions. Word has length 93 [2023-12-20 03:35:01,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:01,900 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 842 transitions. [2023-12-20 03:35:01,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:01,900 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 842 transitions. [2023-12-20 03:35:01,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:35:01,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:01,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:01,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 03:35:01,902 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:01,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:01,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1210703433, now seen corresponding path program 1 times [2023-12-20 03:35:01,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:01,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190945483] [2023-12-20 03:35:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:01,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:02,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:02,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190945483] [2023-12-20 03:35:02,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190945483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:02,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:02,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:02,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158412310] [2023-12-20 03:35:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:02,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:02,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:02,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:02,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:02,071 INFO L87 Difference]: Start difference. First operand 641 states and 842 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:03,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:03,213 INFO L93 Difference]: Finished difference Result 1226 states and 1648 transitions. [2023-12-20 03:35:03,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:03,214 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 03:35:03,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:03,216 INFO L225 Difference]: With dead ends: 1226 [2023-12-20 03:35:03,217 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:35:03,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:03,219 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 2256 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:03,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 2779 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:03,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:35:03,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-20 03:35:03,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.358642972536349) internal successors, (841), 640 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 841 transitions. [2023-12-20 03:35:03,232 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 841 transitions. Word has length 93 [2023-12-20 03:35:03,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:03,233 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 841 transitions. [2023-12-20 03:35:03,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:03,233 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 841 transitions. [2023-12-20 03:35:03,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:03,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:03,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:03,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 03:35:03,236 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:03,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:03,236 INFO L85 PathProgramCache]: Analyzing trace with hash 428439914, now seen corresponding path program 1 times [2023-12-20 03:35:03,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:03,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097693656] [2023-12-20 03:35:03,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:03,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:03,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:03,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:03,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097693656] [2023-12-20 03:35:03,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097693656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:03,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:03,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:03,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444734171] [2023-12-20 03:35:03,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:03,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:03,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:03,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:03,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:03,452 INFO L87 Difference]: Start difference. First operand 641 states and 841 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:04,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:04,690 INFO L93 Difference]: Finished difference Result 1202 states and 1608 transitions. [2023-12-20 03:35:04,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:04,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:04,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:04,693 INFO L225 Difference]: With dead ends: 1202 [2023-12-20 03:35:04,693 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:04,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:04,694 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 2847 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2847 SdHoareTripleChecker+Valid, 3546 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:04,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2847 Valid, 3546 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2570 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 03:35:04,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:04,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:04,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.35702746365105) internal successors, (840), 640 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 840 transitions. [2023-12-20 03:35:04,702 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 840 transitions. Word has length 95 [2023-12-20 03:35:04,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:04,702 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 840 transitions. [2023-12-20 03:35:04,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:04,702 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 840 transitions. [2023-12-20 03:35:04,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:04,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:04,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:04,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 03:35:04,703 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:04,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:04,704 INFO L85 PathProgramCache]: Analyzing trace with hash -403449268, now seen corresponding path program 1 times [2023-12-20 03:35:04,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:04,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570062804] [2023-12-20 03:35:04,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:04,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:04,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:04,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:04,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570062804] [2023-12-20 03:35:04,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570062804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:04,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:04,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:04,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110164421] [2023-12-20 03:35:04,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:04,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:04,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:04,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:04,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:04,867 INFO L87 Difference]: Start difference. First operand 641 states and 840 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:05,854 INFO L93 Difference]: Finished difference Result 1246 states and 1664 transitions. [2023-12-20 03:35:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:05,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:05,858 INFO L225 Difference]: With dead ends: 1246 [2023-12-20 03:35:05,858 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:35:05,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:05,859 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3662 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:05,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3662 Valid, 2646 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:35:05,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:35:05,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 641. [2023-12-20 03:35:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3554119547657513) internal successors, (839), 640 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:05,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 839 transitions. [2023-12-20 03:35:05,871 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 839 transitions. Word has length 95 [2023-12-20 03:35:05,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:05,871 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 839 transitions. [2023-12-20 03:35:05,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:05,871 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 839 transitions. [2023-12-20 03:35:05,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:05,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:05,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:05,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 03:35:05,873 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:05,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash 13593460, now seen corresponding path program 1 times [2023-12-20 03:35:05,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:05,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049029977] [2023-12-20 03:35:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:05,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:06,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:06,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:06,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049029977] [2023-12-20 03:35:06,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049029977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:06,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:06,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:06,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400291367] [2023-12-20 03:35:06,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:06,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:06,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:06,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:06,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:06,084 INFO L87 Difference]: Start difference. First operand 641 states and 839 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:07,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:07,194 INFO L93 Difference]: Finished difference Result 1293 states and 1727 transitions. [2023-12-20 03:35:07,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:07,195 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:07,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:07,197 INFO L225 Difference]: With dead ends: 1293 [2023-12-20 03:35:07,197 INFO L226 Difference]: Without dead ends: 1139 [2023-12-20 03:35:07,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:07,198 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 3056 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:07,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3056 Valid, 3132 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-20 03:35:07,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 641. [2023-12-20 03:35:07,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3537964458804523) internal successors, (838), 640 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:07,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 838 transitions. [2023-12-20 03:35:07,207 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 838 transitions. Word has length 95 [2023-12-20 03:35:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:07,207 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 838 transitions. [2023-12-20 03:35:07,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 838 transitions. [2023-12-20 03:35:07,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:07,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:07,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:07,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 03:35:07,208 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:07,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:07,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1322444417, now seen corresponding path program 1 times [2023-12-20 03:35:07,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:07,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594831041] [2023-12-20 03:35:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:07,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:07,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:07,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594831041] [2023-12-20 03:35:07,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594831041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:07,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:07,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:07,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124743300] [2023-12-20 03:35:07,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:07,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:07,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:07,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:07,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:07,382 INFO L87 Difference]: Start difference. First operand 641 states and 838 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:08,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:08,409 INFO L93 Difference]: Finished difference Result 1202 states and 1604 transitions. [2023-12-20 03:35:08,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:08,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:08,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:08,416 INFO L225 Difference]: With dead ends: 1202 [2023-12-20 03:35:08,417 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:08,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:08,417 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2029 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 2407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:08,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 3111 Invalid, 2407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:35:08,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:08,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:08,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3521809369951534) internal successors, (837), 640 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:08,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 837 transitions. [2023-12-20 03:35:08,425 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 837 transitions. Word has length 95 [2023-12-20 03:35:08,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:08,425 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 837 transitions. [2023-12-20 03:35:08,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:08,425 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 837 transitions. [2023-12-20 03:35:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:08,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:08,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:08,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 03:35:08,426 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:08,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:08,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1959236716, now seen corresponding path program 1 times [2023-12-20 03:35:08,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:08,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171057515] [2023-12-20 03:35:08,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:08,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:08,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:08,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:08,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171057515] [2023-12-20 03:35:08,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171057515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:08,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:08,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:08,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723859701] [2023-12-20 03:35:08,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:08,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:08,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:08,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:08,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:08,666 INFO L87 Difference]: Start difference. First operand 641 states and 837 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:09,692 INFO L93 Difference]: Finished difference Result 1198 states and 1599 transitions. [2023-12-20 03:35:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:09,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:09,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:09,702 INFO L225 Difference]: With dead ends: 1198 [2023-12-20 03:35:09,702 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:09,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:09,703 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 2828 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 2600 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:09,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2828 Valid, 3687 Invalid, 2604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2600 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:35:09,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:09,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3505654281098547) internal successors, (836), 640 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 836 transitions. [2023-12-20 03:35:09,714 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 836 transitions. Word has length 95 [2023-12-20 03:35:09,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:09,714 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 836 transitions. [2023-12-20 03:35:09,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 836 transitions. [2023-12-20 03:35:09,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:09,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:09,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:09,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 03:35:09,715 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:09,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:09,716 INFO L85 PathProgramCache]: Analyzing trace with hash 954342242, now seen corresponding path program 1 times [2023-12-20 03:35:09,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:09,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182241388] [2023-12-20 03:35:09,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:09,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:09,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:09,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182241388] [2023-12-20 03:35:09,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182241388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:09,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:09,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:09,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647468795] [2023-12-20 03:35:09,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:09,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:09,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:09,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:09,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:09,920 INFO L87 Difference]: Start difference. First operand 641 states and 836 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:11,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:11,014 INFO L93 Difference]: Finished difference Result 1202 states and 1601 transitions. [2023-12-20 03:35:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:11,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:11,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:11,025 INFO L225 Difference]: With dead ends: 1202 [2023-12-20 03:35:11,025 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:11,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:11,026 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 2828 mSDsluCounter, 2873 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:11,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2828 Valid, 3685 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:35:11,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:11,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:11,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3489499192245558) internal successors, (835), 640 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:11,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 835 transitions. [2023-12-20 03:35:11,039 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 835 transitions. Word has length 95 [2023-12-20 03:35:11,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:11,039 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 835 transitions. [2023-12-20 03:35:11,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:11,039 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 835 transitions. [2023-12-20 03:35:11,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:11,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:11,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:11,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 03:35:11,041 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:11,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:11,041 INFO L85 PathProgramCache]: Analyzing trace with hash -277492777, now seen corresponding path program 1 times [2023-12-20 03:35:11,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:11,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947318731] [2023-12-20 03:35:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:11,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:11,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:11,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:11,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947318731] [2023-12-20 03:35:11,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947318731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:11,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:11,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:11,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394448319] [2023-12-20 03:35:11,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:11,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:11,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:11,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:11,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:11,246 INFO L87 Difference]: Start difference. First operand 641 states and 835 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:12,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:12,329 INFO L93 Difference]: Finished difference Result 1202 states and 1601 transitions. [2023-12-20 03:35:12,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:12,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:12,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:12,332 INFO L225 Difference]: With dead ends: 1202 [2023-12-20 03:35:12,332 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:12,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:12,332 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 2825 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 3927 SdHoareTripleChecker+Invalid, 2727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:12,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2825 Valid, 3927 Invalid, 2727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2724 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:12,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3473344103392568) internal successors, (834), 640 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 834 transitions. [2023-12-20 03:35:12,339 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 834 transitions. Word has length 95 [2023-12-20 03:35:12,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:12,339 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 834 transitions. [2023-12-20 03:35:12,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 834 transitions. [2023-12-20 03:35:12,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:12,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:12,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:12,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 03:35:12,341 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:12,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:12,341 INFO L85 PathProgramCache]: Analyzing trace with hash 90609398, now seen corresponding path program 1 times [2023-12-20 03:35:12,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:12,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892980619] [2023-12-20 03:35:12,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:12,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:12,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:12,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892980619] [2023-12-20 03:35:12,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892980619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:12,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:12,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:12,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555756920] [2023-12-20 03:35:12,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:12,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:12,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:12,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:12,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:12,488 INFO L87 Difference]: Start difference. First operand 641 states and 834 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:13,485 INFO L93 Difference]: Finished difference Result 1202 states and 1600 transitions. [2023-12-20 03:35:13,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:13,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:13,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:13,487 INFO L225 Difference]: With dead ends: 1202 [2023-12-20 03:35:13,487 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:13,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:13,488 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2951 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2951 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:13,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2951 Valid, 3107 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:35:13,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.345718901453958) internal successors, (833), 640 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:13,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 833 transitions. [2023-12-20 03:35:13,495 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 833 transitions. Word has length 95 [2023-12-20 03:35:13,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:13,495 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 833 transitions. [2023-12-20 03:35:13,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:13,495 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 833 transitions. [2023-12-20 03:35:13,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:13,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:13,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:13,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 03:35:13,496 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:13,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:13,497 INFO L85 PathProgramCache]: Analyzing trace with hash 726921085, now seen corresponding path program 1 times [2023-12-20 03:35:13,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:13,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833684546] [2023-12-20 03:35:13,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:13,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:13,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:13,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833684546] [2023-12-20 03:35:13,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833684546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:13,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:13,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:13,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338226805] [2023-12-20 03:35:13,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:13,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:13,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:13,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:13,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:13,732 INFO L87 Difference]: Start difference. First operand 641 states and 833 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:14,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:14,531 INFO L93 Difference]: Finished difference Result 1198 states and 1594 transitions. [2023-12-20 03:35:14,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:14,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:14,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:14,533 INFO L225 Difference]: With dead ends: 1198 [2023-12-20 03:35:14,533 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:14,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:14,534 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 2816 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:14,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2816 Valid, 3685 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:35:14,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:14,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3441033925686592) internal successors, (832), 640 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 832 transitions. [2023-12-20 03:35:14,543 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 832 transitions. Word has length 95 [2023-12-20 03:35:14,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:14,543 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 832 transitions. [2023-12-20 03:35:14,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:14,543 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 832 transitions. [2023-12-20 03:35:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:14,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:14,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:14,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 03:35:14,545 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:14,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:14,545 INFO L85 PathProgramCache]: Analyzing trace with hash -733177260, now seen corresponding path program 1 times [2023-12-20 03:35:14,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:14,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29013638] [2023-12-20 03:35:14,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:14,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:14,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:14,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:14,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29013638] [2023-12-20 03:35:14,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29013638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:14,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:14,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:14,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691426975] [2023-12-20 03:35:14,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:14,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:14,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:14,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:14,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:14,756 INFO L87 Difference]: Start difference. First operand 641 states and 832 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:15,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:15,923 INFO L93 Difference]: Finished difference Result 1198 states and 1593 transitions. [2023-12-20 03:35:15,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:15,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:15,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:15,926 INFO L225 Difference]: With dead ends: 1198 [2023-12-20 03:35:15,926 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:15,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:15,928 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 2812 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 2707 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2812 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:15,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2812 Valid, 3946 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2707 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:15,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:15,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3424878836833603) internal successors, (831), 640 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 831 transitions. [2023-12-20 03:35:15,951 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 831 transitions. Word has length 95 [2023-12-20 03:35:15,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:15,952 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 831 transitions. [2023-12-20 03:35:15,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:15,952 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 831 transitions. [2023-12-20 03:35:15,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:15,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:15,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:15,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 03:35:15,953 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:15,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:15,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1369271480, now seen corresponding path program 1 times [2023-12-20 03:35:15,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:15,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161503794] [2023-12-20 03:35:15,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:15,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:16,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:16,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161503794] [2023-12-20 03:35:16,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161503794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:16,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:16,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:16,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420173793] [2023-12-20 03:35:16,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:16,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:16,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:16,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:16,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:16,138 INFO L87 Difference]: Start difference. First operand 641 states and 831 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:16,991 INFO L93 Difference]: Finished difference Result 1202 states and 1595 transitions. [2023-12-20 03:35:16,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:16,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:16,993 INFO L225 Difference]: With dead ends: 1202 [2023-12-20 03:35:16,993 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:16,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:17,003 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 2744 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 3313 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:17,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2744 Valid, 3313 Invalid, 2557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:35:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:17,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:17,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3408723747980613) internal successors, (830), 640 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 830 transitions. [2023-12-20 03:35:17,011 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 830 transitions. Word has length 95 [2023-12-20 03:35:17,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:17,011 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 830 transitions. [2023-12-20 03:35:17,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 830 transitions. [2023-12-20 03:35:17,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:17,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:17,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:17,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 03:35:17,035 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:17,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash -532293800, now seen corresponding path program 1 times [2023-12-20 03:35:17,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:17,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276795388] [2023-12-20 03:35:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:17,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:17,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:17,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276795388] [2023-12-20 03:35:17,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276795388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:17,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:17,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:17,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186015038] [2023-12-20 03:35:17,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:17,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:17,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:17,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:17,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:17,239 INFO L87 Difference]: Start difference. First operand 641 states and 830 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:17,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:17,971 INFO L93 Difference]: Finished difference Result 1198 states and 1590 transitions. [2023-12-20 03:35:17,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:17,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:17,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:17,973 INFO L225 Difference]: With dead ends: 1198 [2023-12-20 03:35:17,973 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:17,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:17,974 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2957 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2957 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:17,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2957 Valid, 3103 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:35:17,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:17,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:17,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3392568659127626) internal successors, (829), 640 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:17,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 829 transitions. [2023-12-20 03:35:17,984 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 829 transitions. Word has length 95 [2023-12-20 03:35:17,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:17,985 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 829 transitions. [2023-12-20 03:35:17,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:17,985 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 829 transitions. [2023-12-20 03:35:17,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:35:17,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:17,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:17,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 03:35:17,986 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:17,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:17,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1192103022, now seen corresponding path program 1 times [2023-12-20 03:35:17,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:17,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085913159] [2023-12-20 03:35:17,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:17,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:18,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:18,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:18,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085913159] [2023-12-20 03:35:18,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085913159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:18,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:18,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:18,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797279541] [2023-12-20 03:35:18,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:18,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:18,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:18,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:18,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:18,266 INFO L87 Difference]: Start difference. First operand 641 states and 829 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:19,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:19,385 INFO L93 Difference]: Finished difference Result 1197 states and 1587 transitions. [2023-12-20 03:35:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:19,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 03:35:19,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:19,388 INFO L225 Difference]: With dead ends: 1197 [2023-12-20 03:35:19,388 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:19,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:19,389 INFO L413 NwaCegarLoop]: 902 mSDtfsCounter, 2805 mSDsluCounter, 3026 mSDsCounter, 0 mSdLazyCounter, 2682 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2805 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:19,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2805 Valid, 3928 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2682 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:19,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:19,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3376413570274637) internal successors, (828), 640 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:19,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 828 transitions. [2023-12-20 03:35:19,398 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 828 transitions. Word has length 95 [2023-12-20 03:35:19,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:19,398 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 828 transitions. [2023-12-20 03:35:19,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:19,398 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 828 transitions. [2023-12-20 03:35:19,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:19,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:19,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:19,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 03:35:19,402 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:19,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:19,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2114920515, now seen corresponding path program 1 times [2023-12-20 03:35:19,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:19,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360019909] [2023-12-20 03:35:19,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:19,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:19,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:19,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:19,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360019909] [2023-12-20 03:35:19,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360019909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:19,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:19,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:19,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237993725] [2023-12-20 03:35:19,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:19,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:19,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:19,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:19,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:19,595 INFO L87 Difference]: Start difference. First operand 641 states and 828 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:20,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:20,385 INFO L93 Difference]: Finished difference Result 1163 states and 1529 transitions. [2023-12-20 03:35:20,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:20,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:20,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:20,387 INFO L225 Difference]: With dead ends: 1163 [2023-12-20 03:35:20,387 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:20,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:20,388 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 2884 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 3063 SdHoareTripleChecker+Invalid, 2332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:20,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 3063 Invalid, 2332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2328 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:35:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:20,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 641. [2023-12-20 03:35:20,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3360258481421647) internal successors, (827), 640 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 827 transitions. [2023-12-20 03:35:20,405 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 827 transitions. Word has length 97 [2023-12-20 03:35:20,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:20,405 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 827 transitions. [2023-12-20 03:35:20,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:20,406 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 827 transitions. [2023-12-20 03:35:20,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:20,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:20,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:20,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-20 03:35:20,407 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:20,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:20,407 INFO L85 PathProgramCache]: Analyzing trace with hash -202723413, now seen corresponding path program 1 times [2023-12-20 03:35:20,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:20,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929202156] [2023-12-20 03:35:20,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:20,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:20,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:20,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:20,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929202156] [2023-12-20 03:35:20,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929202156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:20,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:20,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:20,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943369968] [2023-12-20 03:35:20,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:20,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:20,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:20,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:20,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:20,589 INFO L87 Difference]: Start difference. First operand 641 states and 827 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:21,702 INFO L93 Difference]: Finished difference Result 1207 states and 1593 transitions. [2023-12-20 03:35:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:21,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:21,704 INFO L225 Difference]: With dead ends: 1207 [2023-12-20 03:35:21,704 INFO L226 Difference]: Without dead ends: 1115 [2023-12-20 03:35:21,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:21,705 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2934 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 2336 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2934 SdHoareTripleChecker+Valid, 3093 SdHoareTripleChecker+Invalid, 2340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:21,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2934 Valid, 3093 Invalid, 2340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2336 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:21,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-20 03:35:21,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 641. [2023-12-20 03:35:21,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3344103392568658) internal successors, (826), 640 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:21,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 826 transitions. [2023-12-20 03:35:21,711 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 826 transitions. Word has length 97 [2023-12-20 03:35:21,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:21,711 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 826 transitions. [2023-12-20 03:35:21,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:21,711 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 826 transitions. [2023-12-20 03:35:21,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:21,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:21,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:21,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 03:35:21,712 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:21,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:21,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1604074859, now seen corresponding path program 1 times [2023-12-20 03:35:21,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:21,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670196572] [2023-12-20 03:35:21,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:21,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:21,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:21,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:21,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670196572] [2023-12-20 03:35:21,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670196572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:21,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:21,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:21,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260475226] [2023-12-20 03:35:21,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:21,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:21,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:21,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:21,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:21,934 INFO L87 Difference]: Start difference. First operand 641 states and 826 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:23,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:23,141 INFO L93 Difference]: Finished difference Result 1160 states and 1524 transitions. [2023-12-20 03:35:23,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:23,142 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:23,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:23,143 INFO L225 Difference]: With dead ends: 1160 [2023-12-20 03:35:23,144 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:23,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:23,144 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 2872 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 2477 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2872 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:23,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2872 Valid, 3363 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2477 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 03:35:23,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:23,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 641. [2023-12-20 03:35:23,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.332794830371567) internal successors, (825), 640 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 825 transitions. [2023-12-20 03:35:23,150 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 825 transitions. Word has length 97 [2023-12-20 03:35:23,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:23,151 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 825 transitions. [2023-12-20 03:35:23,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:23,151 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 825 transitions. [2023-12-20 03:35:23,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:23,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:23,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:23,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 03:35:23,152 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:23,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:23,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1424910206, now seen corresponding path program 1 times [2023-12-20 03:35:23,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:23,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497841721] [2023-12-20 03:35:23,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:23,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:23,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:23,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:23,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497841721] [2023-12-20 03:35:23,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497841721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:23,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:23,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:23,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925021692] [2023-12-20 03:35:23,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:23,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:23,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:23,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:23,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:23,492 INFO L87 Difference]: Start difference. First operand 641 states and 825 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:25,091 INFO L93 Difference]: Finished difference Result 1544 states and 2071 transitions. [2023-12-20 03:35:25,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:35:25,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:25,094 INFO L225 Difference]: With dead ends: 1544 [2023-12-20 03:35:25,094 INFO L226 Difference]: Without dead ends: 1464 [2023-12-20 03:35:25,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:35:25,095 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 6374 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6374 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:25,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6374 Valid, 2856 Invalid, 2553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2329 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 03:35:25,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-20 03:35:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 645. [2023-12-20 03:35:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3306581059390048) internal successors, (829), 644 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:25,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 829 transitions. [2023-12-20 03:35:25,109 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 829 transitions. Word has length 97 [2023-12-20 03:35:25,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:25,109 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 829 transitions. [2023-12-20 03:35:25,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:25,109 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 829 transitions. [2023-12-20 03:35:25,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:25,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:25,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:25,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 03:35:25,110 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:25,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:25,110 INFO L85 PathProgramCache]: Analyzing trace with hash -183952075, now seen corresponding path program 1 times [2023-12-20 03:35:25,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:25,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282563724] [2023-12-20 03:35:25,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:25,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:25,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:25,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282563724] [2023-12-20 03:35:25,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282563724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:25,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:25,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:25,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147980407] [2023-12-20 03:35:25,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:25,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:25,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:25,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:25,292 INFO L87 Difference]: Start difference. First operand 645 states and 829 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:26,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:26,361 INFO L93 Difference]: Finished difference Result 1163 states and 1525 transitions. [2023-12-20 03:35:26,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:26,362 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:26,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:26,365 INFO L225 Difference]: With dead ends: 1163 [2023-12-20 03:35:26,365 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:26,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:26,367 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 2873 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2873 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:26,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2873 Valid, 3101 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2327 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:35:26,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:26,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 645. [2023-12-20 03:35:26,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3290529695024078) internal successors, (828), 644 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:26,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 828 transitions. [2023-12-20 03:35:26,374 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 828 transitions. Word has length 97 [2023-12-20 03:35:26,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:26,374 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 828 transitions. [2023-12-20 03:35:26,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:26,374 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 828 transitions. [2023-12-20 03:35:26,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:26,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:26,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:26,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-20 03:35:26,375 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:26,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:26,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1728245027, now seen corresponding path program 1 times [2023-12-20 03:35:26,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:26,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487795595] [2023-12-20 03:35:26,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:26,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:26,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:26,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487795595] [2023-12-20 03:35:26,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487795595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:26,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:26,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:26,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821197162] [2023-12-20 03:35:26,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:26,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:26,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:26,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:26,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:26,548 INFO L87 Difference]: Start difference. First operand 645 states and 828 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:27,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:27,724 INFO L93 Difference]: Finished difference Result 1211 states and 1593 transitions. [2023-12-20 03:35:27,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:27,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:27,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:27,727 INFO L225 Difference]: With dead ends: 1211 [2023-12-20 03:35:27,727 INFO L226 Difference]: Without dead ends: 1119 [2023-12-20 03:35:27,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:27,727 INFO L413 NwaCegarLoop]: 904 mSDtfsCounter, 2798 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 3931 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:27,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2798 Valid, 3931 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:27,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2023-12-20 03:35:27,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 645. [2023-12-20 03:35:27,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3274478330658106) internal successors, (827), 644 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:27,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 827 transitions. [2023-12-20 03:35:27,733 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 827 transitions. Word has length 97 [2023-12-20 03:35:27,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:27,733 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 827 transitions. [2023-12-20 03:35:27,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:27,733 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 827 transitions. [2023-12-20 03:35:27,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:27,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:27,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:27,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-20 03:35:27,734 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:27,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:27,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1459574739, now seen corresponding path program 1 times [2023-12-20 03:35:27,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:27,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252904486] [2023-12-20 03:35:27,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:27,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:27,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252904486] [2023-12-20 03:35:27,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252904486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:27,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:27,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:27,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697624823] [2023-12-20 03:35:27,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:27,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:27,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:27,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:27,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:27,895 INFO L87 Difference]: Start difference. First operand 645 states and 827 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:29,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:29,043 INFO L93 Difference]: Finished difference Result 1160 states and 1520 transitions. [2023-12-20 03:35:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:29,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:29,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:29,045 INFO L225 Difference]: With dead ends: 1160 [2023-12-20 03:35:29,045 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:29,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:29,045 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 2861 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 2472 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 3421 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:29,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2861 Valid, 3421 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2472 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:29,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:29,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 645. [2023-12-20 03:35:29,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3258426966292134) internal successors, (826), 644 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:29,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 826 transitions. [2023-12-20 03:35:29,050 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 826 transitions. Word has length 97 [2023-12-20 03:35:29,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:29,051 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 826 transitions. [2023-12-20 03:35:29,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:29,051 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 826 transitions. [2023-12-20 03:35:29,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:29,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:29,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:29,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-20 03:35:29,052 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:29,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:29,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1569790645, now seen corresponding path program 1 times [2023-12-20 03:35:29,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:29,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913198383] [2023-12-20 03:35:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:29,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:29,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:29,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:29,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913198383] [2023-12-20 03:35:29,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913198383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:29,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:29,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:29,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656562057] [2023-12-20 03:35:29,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:29,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:29,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:29,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:29,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:29,308 INFO L87 Difference]: Start difference. First operand 645 states and 826 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:31,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:31,117 INFO L93 Difference]: Finished difference Result 1469 states and 1955 transitions. [2023-12-20 03:35:31,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:35:31,117 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:31,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:31,133 INFO L225 Difference]: With dead ends: 1469 [2023-12-20 03:35:31,134 INFO L226 Difference]: Without dead ends: 1464 [2023-12-20 03:35:31,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:35:31,145 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 5478 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 3140 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5478 SdHoareTripleChecker+Valid, 3796 SdHoareTripleChecker+Invalid, 3353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 3140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:31,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5478 Valid, 3796 Invalid, 3353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 3140 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 03:35:31,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-20 03:35:31,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 649. [2023-12-20 03:35:31,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3237639553429028) internal successors, (830), 648 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:31,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 830 transitions. [2023-12-20 03:35:31,154 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 830 transitions. Word has length 97 [2023-12-20 03:35:31,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:31,154 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 830 transitions. [2023-12-20 03:35:31,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:31,155 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 830 transitions. [2023-12-20 03:35:31,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:31,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:31,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:31,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-20 03:35:31,167 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:31,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:31,167 INFO L85 PathProgramCache]: Analyzing trace with hash -810880663, now seen corresponding path program 1 times [2023-12-20 03:35:31,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:31,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30229340] [2023-12-20 03:35:31,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:31,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:31,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:31,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30229340] [2023-12-20 03:35:31,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30229340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:31,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:31,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:31,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009415065] [2023-12-20 03:35:31,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:31,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:31,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:31,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:31,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:31,439 INFO L87 Difference]: Start difference. First operand 649 states and 830 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:33,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:33,157 INFO L93 Difference]: Finished difference Result 1538 states and 2060 transitions. [2023-12-20 03:35:33,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:35:33,158 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:33,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:33,160 INFO L225 Difference]: With dead ends: 1538 [2023-12-20 03:35:33,160 INFO L226 Difference]: Without dead ends: 1461 [2023-12-20 03:35:33,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:35:33,162 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 6310 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6310 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:33,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6310 Valid, 2877 Invalid, 2545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 03:35:33,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-12-20 03:35:33,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 653. [2023-12-20 03:35:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3217115689381933) internal successors, (834), 652 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:33,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 834 transitions. [2023-12-20 03:35:33,184 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 834 transitions. Word has length 97 [2023-12-20 03:35:33,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:33,184 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 834 transitions. [2023-12-20 03:35:33,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 834 transitions. [2023-12-20 03:35:33,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:33,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:33,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:33,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-20 03:35:33,186 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:33,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:33,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1948776647, now seen corresponding path program 1 times [2023-12-20 03:35:33,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:33,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910193999] [2023-12-20 03:35:33,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:33,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:33,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:33,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910193999] [2023-12-20 03:35:33,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910193999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:33,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:33,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:33,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123626393] [2023-12-20 03:35:33,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:33,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:33,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:33,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:33,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:33,425 INFO L87 Difference]: Start difference. First operand 653 states and 834 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:34,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:34,495 INFO L93 Difference]: Finished difference Result 1158 states and 1515 transitions. [2023-12-20 03:35:34,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:34,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:34,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:34,498 INFO L225 Difference]: With dead ends: 1158 [2023-12-20 03:35:34,498 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:34,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:34,498 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 2859 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2859 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:34,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2859 Valid, 3137 Invalid, 2326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2322 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:35:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:34,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 653. [2023-12-20 03:35:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3201267828843106) internal successors, (833), 652 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:34,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 833 transitions. [2023-12-20 03:35:34,504 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 833 transitions. Word has length 97 [2023-12-20 03:35:34,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:34,504 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 833 transitions. [2023-12-20 03:35:34,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:34,504 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 833 transitions. [2023-12-20 03:35:34,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:34,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:34,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:34,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-20 03:35:34,505 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:34,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash 766051541, now seen corresponding path program 1 times [2023-12-20 03:35:34,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:34,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334838679] [2023-12-20 03:35:34,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:34,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:34,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:34,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:34,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334838679] [2023-12-20 03:35:34,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334838679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:34,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:34,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:34,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57825696] [2023-12-20 03:35:34,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:34,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:34,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:34,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:34,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:34,683 INFO L87 Difference]: Start difference. First operand 653 states and 833 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:35,630 INFO L93 Difference]: Finished difference Result 1088 states and 1408 transitions. [2023-12-20 03:35:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:35,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:35,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:35,632 INFO L225 Difference]: With dead ends: 1088 [2023-12-20 03:35:35,632 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:35,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:35,632 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 2858 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:35,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 3138 Invalid, 2317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:35:35,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:35,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 653. [2023-12-20 03:35:35,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.318541996830428) internal successors, (832), 652 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:35,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 832 transitions. [2023-12-20 03:35:35,654 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 832 transitions. Word has length 97 [2023-12-20 03:35:35,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:35,654 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 832 transitions. [2023-12-20 03:35:35,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:35,654 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 832 transitions. [2023-12-20 03:35:35,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:35,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:35,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:35,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-20 03:35:35,666 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:35,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:35,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1616718653, now seen corresponding path program 1 times [2023-12-20 03:35:35,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:35,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518480869] [2023-12-20 03:35:35,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:35,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:35,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:35,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518480869] [2023-12-20 03:35:35,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518480869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:35,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:35,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:35,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329528789] [2023-12-20 03:35:35,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:35,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:35,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:35,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:35,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:35,817 INFO L87 Difference]: Start difference. First operand 653 states and 832 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:36,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:36,966 INFO L93 Difference]: Finished difference Result 1148 states and 1488 transitions. [2023-12-20 03:35:36,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:36,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:36,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:36,968 INFO L225 Difference]: With dead ends: 1148 [2023-12-20 03:35:36,968 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:35:36,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:36,968 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2911 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:36,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2911 Valid, 3097 Invalid, 2297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:36,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:35:36,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 653. [2023-12-20 03:35:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3169572107765453) internal successors, (831), 652 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:36,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 831 transitions. [2023-12-20 03:35:36,975 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 831 transitions. Word has length 97 [2023-12-20 03:35:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:36,975 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 831 transitions. [2023-12-20 03:35:36,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:36,975 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 831 transitions. [2023-12-20 03:35:36,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:36,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:36,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:36,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-20 03:35:36,977 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:36,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:36,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1276634052, now seen corresponding path program 1 times [2023-12-20 03:35:36,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:36,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624490526] [2023-12-20 03:35:36,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:36,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:37,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:37,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624490526] [2023-12-20 03:35:37,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624490526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:37,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:37,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:37,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681135782] [2023-12-20 03:35:37,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:37,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:37,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:37,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:37,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:37,152 INFO L87 Difference]: Start difference. First operand 653 states and 831 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:38,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:38,266 INFO L93 Difference]: Finished difference Result 1160 states and 1514 transitions. [2023-12-20 03:35:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:38,267 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:38,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:38,268 INFO L225 Difference]: With dead ends: 1160 [2023-12-20 03:35:38,268 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:38,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:38,269 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 2848 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2848 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:38,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2848 Valid, 3193 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:38,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:38,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 653. [2023-12-20 03:35:38,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3153724247226624) internal successors, (830), 652 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:38,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 830 transitions. [2023-12-20 03:35:38,275 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 830 transitions. Word has length 97 [2023-12-20 03:35:38,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:38,275 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 830 transitions. [2023-12-20 03:35:38,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:38,275 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 830 transitions. [2023-12-20 03:35:38,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:38,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:38,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:38,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-20 03:35:38,276 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:38,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash 10914966, now seen corresponding path program 1 times [2023-12-20 03:35:38,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:38,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147334799] [2023-12-20 03:35:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:38,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:38,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:38,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:38,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147334799] [2023-12-20 03:35:38,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147334799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:38,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:38,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:38,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876644874] [2023-12-20 03:35:38,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:38,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:38,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:38,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:38,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:38,540 INFO L87 Difference]: Start difference. First operand 653 states and 830 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:40,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:40,167 INFO L93 Difference]: Finished difference Result 1469 states and 1949 transitions. [2023-12-20 03:35:40,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:35:40,167 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:40,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:40,169 INFO L225 Difference]: With dead ends: 1469 [2023-12-20 03:35:40,170 INFO L226 Difference]: Without dead ends: 1464 [2023-12-20 03:35:40,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:35:40,170 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 6164 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 2867 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6164 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 2867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:40,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6164 Valid, 3560 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 2867 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 03:35:40,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-20 03:35:40,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 657. [2023-12-20 03:35:40,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.3133858267716536) internal successors, (834), 656 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:40,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 834 transitions. [2023-12-20 03:35:40,176 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 834 transitions. Word has length 97 [2023-12-20 03:35:40,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:40,176 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 834 transitions. [2023-12-20 03:35:40,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 834 transitions. [2023-12-20 03:35:40,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:40,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:40,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:40,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-20 03:35:40,178 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:40,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:40,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1911379830, now seen corresponding path program 1 times [2023-12-20 03:35:40,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:40,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679674405] [2023-12-20 03:35:40,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:40,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:40,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:40,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:40,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679674405] [2023-12-20 03:35:40,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679674405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:40,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:40,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:40,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483700678] [2023-12-20 03:35:40,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:40,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:40,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:40,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:40,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:40,345 INFO L87 Difference]: Start difference. First operand 657 states and 834 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:41,291 INFO L93 Difference]: Finished difference Result 1163 states and 1515 transitions. [2023-12-20 03:35:41,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:41,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:41,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:41,306 INFO L225 Difference]: With dead ends: 1163 [2023-12-20 03:35:41,306 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:41,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:41,308 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 2848 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2848 SdHoareTripleChecker+Valid, 3175 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:41,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2848 Valid, 3175 Invalid, 2316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:35:41,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:41,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 657. [2023-12-20 03:35:41,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.3118110236220473) internal successors, (833), 656 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:41,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 833 transitions. [2023-12-20 03:35:41,315 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 833 transitions. Word has length 97 [2023-12-20 03:35:41,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:41,315 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 833 transitions. [2023-12-20 03:35:41,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:41,315 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 833 transitions. [2023-12-20 03:35:41,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:41,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:41,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:41,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-20 03:35:41,316 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:41,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:41,316 INFO L85 PathProgramCache]: Analyzing trace with hash 817272, now seen corresponding path program 1 times [2023-12-20 03:35:41,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:41,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84448783] [2023-12-20 03:35:41,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:41,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:41,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:41,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:41,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84448783] [2023-12-20 03:35:41,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84448783] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:41,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:41,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:41,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391308761] [2023-12-20 03:35:41,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:41,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:41,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:41,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:41,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:41,457 INFO L87 Difference]: Start difference. First operand 657 states and 833 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:42,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:42,536 INFO L93 Difference]: Finished difference Result 1227 states and 1598 transitions. [2023-12-20 03:35:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:35:42,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:42,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:42,538 INFO L225 Difference]: With dead ends: 1227 [2023-12-20 03:35:42,538 INFO L226 Difference]: Without dead ends: 1135 [2023-12-20 03:35:42,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:35:42,539 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2904 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 3093 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:42,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 3093 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:35:42,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2023-12-20 03:35:42,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 657. [2023-12-20 03:35:42,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.310236220472441) internal successors, (832), 656 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:42,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 832 transitions. [2023-12-20 03:35:42,544 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 832 transitions. Word has length 97 [2023-12-20 03:35:42,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:42,545 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 832 transitions. [2023-12-20 03:35:42,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:42,545 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 832 transitions. [2023-12-20 03:35:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:42,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:42,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:42,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-20 03:35:42,546 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:42,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:42,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1401277931, now seen corresponding path program 1 times [2023-12-20 03:35:42,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:42,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782024370] [2023-12-20 03:35:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:42,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:42,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:42,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:42,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782024370] [2023-12-20 03:35:42,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782024370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:42,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:42,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:42,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418535788] [2023-12-20 03:35:42,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:42,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:42,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:42,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:42,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:42,699 INFO L87 Difference]: Start difference. First operand 657 states and 832 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:43,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:43,815 INFO L93 Difference]: Finished difference Result 1160 states and 1510 transitions. [2023-12-20 03:35:43,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:43,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:43,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:43,817 INFO L225 Difference]: With dead ends: 1160 [2023-12-20 03:35:43,817 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:43,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:43,818 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 2836 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 3475 SdHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:43,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 3475 Invalid, 2464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:43,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:43,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 657. [2023-12-20 03:35:43,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.3086614173228346) internal successors, (831), 656 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:43,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 831 transitions. [2023-12-20 03:35:43,823 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 831 transitions. Word has length 97 [2023-12-20 03:35:43,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:43,823 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 831 transitions. [2023-12-20 03:35:43,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:43,823 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 831 transitions. [2023-12-20 03:35:43,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:43,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:43,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:43,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-20 03:35:43,824 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:43,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:43,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1628450891, now seen corresponding path program 1 times [2023-12-20 03:35:43,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:43,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22181260] [2023-12-20 03:35:43,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:43,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:44,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:44,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:44,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22181260] [2023-12-20 03:35:44,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22181260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:44,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:44,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:44,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544032366] [2023-12-20 03:35:44,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:44,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:44,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:44,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:44,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:44,089 INFO L87 Difference]: Start difference. First operand 657 states and 831 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:45,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:45,809 INFO L93 Difference]: Finished difference Result 1544 states and 2057 transitions. [2023-12-20 03:35:45,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:35:45,810 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:45,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:45,811 INFO L225 Difference]: With dead ends: 1544 [2023-12-20 03:35:45,811 INFO L226 Difference]: Without dead ends: 1464 [2023-12-20 03:35:45,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:35:45,812 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 6102 mSDsluCounter, 2914 mSDsCounter, 0 mSdLazyCounter, 2869 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6102 SdHoareTripleChecker+Valid, 3606 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:45,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6102 Valid, 3606 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2869 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 03:35:45,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-20 03:35:45,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 661. [2023-12-20 03:35:45,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.3067292644757433) internal successors, (835), 660 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:45,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 835 transitions. [2023-12-20 03:35:45,818 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 835 transitions. Word has length 97 [2023-12-20 03:35:45,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:45,818 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 835 transitions. [2023-12-20 03:35:45,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:45,819 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 835 transitions. [2023-12-20 03:35:45,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:45,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:45,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:45,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-20 03:35:45,819 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:45,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:45,820 INFO L85 PathProgramCache]: Analyzing trace with hash 157480574, now seen corresponding path program 1 times [2023-12-20 03:35:45,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:45,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888612707] [2023-12-20 03:35:45,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:45,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:45,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:45,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888612707] [2023-12-20 03:35:45,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888612707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:45,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:45,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:45,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426577377] [2023-12-20 03:35:45,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:45,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:45,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:45,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:45,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:45,978 INFO L87 Difference]: Start difference. First operand 661 states and 835 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:47,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:47,097 INFO L93 Difference]: Finished difference Result 1160 states and 1508 transitions. [2023-12-20 03:35:47,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:47,097 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:47,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:47,098 INFO L225 Difference]: With dead ends: 1160 [2023-12-20 03:35:47,098 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:47,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:47,098 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 2833 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 3473 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:47,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2833 Valid, 3473 Invalid, 2451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2448 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:47,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:47,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 661. [2023-12-20 03:35:47,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.3051643192488263) internal successors, (834), 660 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:47,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 834 transitions. [2023-12-20 03:35:47,104 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 834 transitions. Word has length 97 [2023-12-20 03:35:47,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:47,104 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 834 transitions. [2023-12-20 03:35:47,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:47,104 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 834 transitions. [2023-12-20 03:35:47,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:47,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:47,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:47,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-20 03:35:47,105 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:47,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:47,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1107640726, now seen corresponding path program 1 times [2023-12-20 03:35:47,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:47,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843736176] [2023-12-20 03:35:47,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:47,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:47,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:47,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:47,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843736176] [2023-12-20 03:35:47,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843736176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:47,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:47,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:47,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071366418] [2023-12-20 03:35:47,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:47,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:47,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:47,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:47,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:47,372 INFO L87 Difference]: Start difference. First operand 661 states and 834 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:48,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:48,953 INFO L93 Difference]: Finished difference Result 1544 states and 2055 transitions. [2023-12-20 03:35:48,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:35:48,954 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:48,955 INFO L225 Difference]: With dead ends: 1544 [2023-12-20 03:35:48,955 INFO L226 Difference]: Without dead ends: 1464 [2023-12-20 03:35:48,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:35:48,956 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 5451 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5451 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 2730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:48,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5451 Valid, 3159 Invalid, 2730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2518 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 03:35:48,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-20 03:35:48,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 665. [2023-12-20 03:35:48,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 643 states have (on average 1.3032659409020217) internal successors, (838), 664 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 838 transitions. [2023-12-20 03:35:48,962 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 838 transitions. Word has length 97 [2023-12-20 03:35:48,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:48,962 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 838 transitions. [2023-12-20 03:35:48,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:48,962 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 838 transitions. [2023-12-20 03:35:48,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:48,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:48,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:48,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-20 03:35:48,963 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:48,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash 806174650, now seen corresponding path program 1 times [2023-12-20 03:35:48,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:48,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114010822] [2023-12-20 03:35:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:48,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:49,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:49,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:49,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114010822] [2023-12-20 03:35:49,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114010822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:49,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:49,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:49,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537237881] [2023-12-20 03:35:49,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:49,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:49,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:49,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:49,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:49,240 INFO L87 Difference]: Start difference. First operand 665 states and 838 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:50,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:50,732 INFO L93 Difference]: Finished difference Result 1538 states and 2048 transitions. [2023-12-20 03:35:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:35:50,733 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:50,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:50,734 INFO L225 Difference]: With dead ends: 1538 [2023-12-20 03:35:50,734 INFO L226 Difference]: Without dead ends: 1461 [2023-12-20 03:35:50,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:35:50,735 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 6202 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6202 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:50,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6202 Valid, 2914 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 03:35:50,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-12-20 03:35:50,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 669. [2023-12-20 03:35:50,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 647 states have (on average 1.3013910355486862) internal successors, (842), 668 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:50,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 842 transitions. [2023-12-20 03:35:50,741 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 842 transitions. Word has length 97 [2023-12-20 03:35:50,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:50,741 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 842 transitions. [2023-12-20 03:35:50,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:50,741 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 842 transitions. [2023-12-20 03:35:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:50,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:50,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:50,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-20 03:35:50,742 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:50,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:50,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1457801230, now seen corresponding path program 1 times [2023-12-20 03:35:50,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:50,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210687695] [2023-12-20 03:35:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:50,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:50,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:50,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210687695] [2023-12-20 03:35:50,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210687695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:50,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:50,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:50,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138185416] [2023-12-20 03:35:50,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:50,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:50,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:50,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:50,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:50,918 INFO L87 Difference]: Start difference. First operand 669 states and 842 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:52,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:52,079 INFO L93 Difference]: Finished difference Result 1158 states and 1503 transitions. [2023-12-20 03:35:52,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:52,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:52,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:52,081 INFO L225 Difference]: With dead ends: 1158 [2023-12-20 03:35:52,081 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:52,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:52,081 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 2830 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2830 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:52,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2830 Valid, 3449 Invalid, 2430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:52,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:52,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 669. [2023-12-20 03:35:52,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 647 states have (on average 1.2998454404945905) internal successors, (841), 668 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:52,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 841 transitions. [2023-12-20 03:35:52,088 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 841 transitions. Word has length 97 [2023-12-20 03:35:52,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:52,088 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 841 transitions. [2023-12-20 03:35:52,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:52,089 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 841 transitions. [2023-12-20 03:35:52,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:52,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:52,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:52,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-20 03:35:52,089 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:52,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:52,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1980221071, now seen corresponding path program 1 times [2023-12-20 03:35:52,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:52,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087629928] [2023-12-20 03:35:52,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:52,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:52,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:52,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087629928] [2023-12-20 03:35:52,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087629928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:52,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:52,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:52,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358585809] [2023-12-20 03:35:52,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:52,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:52,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:52,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:52,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:52,370 INFO L87 Difference]: Start difference. First operand 669 states and 841 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:53,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:53,460 INFO L93 Difference]: Finished difference Result 1538 states and 2046 transitions. [2023-12-20 03:35:53,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:35:53,460 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:53,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:53,462 INFO L225 Difference]: With dead ends: 1538 [2023-12-20 03:35:53,462 INFO L226 Difference]: Without dead ends: 1461 [2023-12-20 03:35:53,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:35:53,463 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 6203 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6203 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 2506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:53,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6203 Valid, 2921 Invalid, 2506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:35:53,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-12-20 03:35:53,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 673. [2023-12-20 03:35:53,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 651 states have (on average 1.2980030721966205) internal successors, (845), 672 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:53,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 845 transitions. [2023-12-20 03:35:53,470 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 845 transitions. Word has length 97 [2023-12-20 03:35:53,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:53,470 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 845 transitions. [2023-12-20 03:35:53,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:53,470 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 845 transitions. [2023-12-20 03:35:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:53,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:53,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:53,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-20 03:35:53,471 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:53,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:53,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1666052149, now seen corresponding path program 1 times [2023-12-20 03:35:53,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:53,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341630797] [2023-12-20 03:35:53,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:53,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:53,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:53,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:53,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341630797] [2023-12-20 03:35:53,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341630797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:53,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:53,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:53,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515175668] [2023-12-20 03:35:53,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:53,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:53,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:53,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:53,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:53,650 INFO L87 Difference]: Start difference. First operand 673 states and 845 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:54,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:54,754 INFO L93 Difference]: Finished difference Result 1160 states and 1503 transitions. [2023-12-20 03:35:54,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:54,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:54,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:54,756 INFO L225 Difference]: With dead ends: 1160 [2023-12-20 03:35:54,756 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:54,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:54,757 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 2827 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2827 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 2412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:54,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2827 Valid, 3447 Invalid, 2412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:35:54,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:54,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 673. [2023-12-20 03:35:54,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 651 states have (on average 1.2964669738863288) internal successors, (844), 672 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:54,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 844 transitions. [2023-12-20 03:35:54,763 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 844 transitions. Word has length 97 [2023-12-20 03:35:54,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:54,763 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 844 transitions. [2023-12-20 03:35:54,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:54,764 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 844 transitions. [2023-12-20 03:35:54,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:54,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:54,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:54,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-20 03:35:54,765 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:54,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:54,765 INFO L85 PathProgramCache]: Analyzing trace with hash 401148316, now seen corresponding path program 1 times [2023-12-20 03:35:54,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:54,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721512504] [2023-12-20 03:35:54,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:54,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:55,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:55,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:55,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721512504] [2023-12-20 03:35:55,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721512504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:55,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:55,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:55,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221801539] [2023-12-20 03:35:55,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:55,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:55,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:55,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:55,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:55,049 INFO L87 Difference]: Start difference. First operand 673 states and 844 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:56,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:56,742 INFO L93 Difference]: Finished difference Result 1469 states and 1938 transitions. [2023-12-20 03:35:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:35:56,742 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:56,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:56,744 INFO L225 Difference]: With dead ends: 1469 [2023-12-20 03:35:56,744 INFO L226 Difference]: Without dead ends: 1464 [2023-12-20 03:35:56,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:35:56,744 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 5468 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 2484 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5468 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:56,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5468 Valid, 3140 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2484 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 03:35:56,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-20 03:35:56,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 677. [2023-12-20 03:35:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 655 states have (on average 1.2946564885496183) internal successors, (848), 676 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:56,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 848 transitions. [2023-12-20 03:35:56,751 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 848 transitions. Word has length 97 [2023-12-20 03:35:56,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:56,751 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 848 transitions. [2023-12-20 03:35:56,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:56,751 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 848 transitions. [2023-12-20 03:35:56,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:56,752 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:56,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:56,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-20 03:35:56,752 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:56,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:56,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2108459819, now seen corresponding path program 1 times [2023-12-20 03:35:56,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:56,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147895571] [2023-12-20 03:35:56,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:56,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:57,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:57,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:57,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147895571] [2023-12-20 03:35:57,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147895571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:57,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:57,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:57,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026693425] [2023-12-20 03:35:57,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:57,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:57,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:57,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:57,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:57,044 INFO L87 Difference]: Start difference. First operand 677 states and 848 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:58,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:58,629 INFO L93 Difference]: Finished difference Result 1538 states and 2043 transitions. [2023-12-20 03:35:58,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:35:58,629 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:58,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:58,631 INFO L225 Difference]: With dead ends: 1538 [2023-12-20 03:35:58,631 INFO L226 Difference]: Without dead ends: 1461 [2023-12-20 03:35:58,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:35:58,631 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 6218 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6218 SdHoareTripleChecker+Valid, 2909 SdHoareTripleChecker+Invalid, 2488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:58,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6218 Valid, 2909 Invalid, 2488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 03:35:58,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-12-20 03:35:58,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 681. [2023-12-20 03:35:58,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 659 states have (on average 1.2928679817905917) internal successors, (852), 680 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:58,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 852 transitions. [2023-12-20 03:35:58,638 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 852 transitions. Word has length 97 [2023-12-20 03:35:58,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:58,638 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 852 transitions. [2023-12-20 03:35:58,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:58,638 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 852 transitions. [2023-12-20 03:35:58,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:58,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:58,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:58,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-20 03:35:58,639 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:58,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:58,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1658266281, now seen corresponding path program 1 times [2023-12-20 03:35:58,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:58,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851412025] [2023-12-20 03:35:58,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:58,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:58,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:58,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:58,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851412025] [2023-12-20 03:35:58,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851412025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:58,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:58,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:35:58,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314209149] [2023-12-20 03:35:58,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:58,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:35:58,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:58,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:35:58,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:35:58,813 INFO L87 Difference]: Start difference. First operand 681 states and 852 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:35:59,516 INFO L93 Difference]: Finished difference Result 1158 states and 1498 transitions. [2023-12-20 03:35:59,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:35:59,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:35:59,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:35:59,517 INFO L225 Difference]: With dead ends: 1158 [2023-12-20 03:35:59,517 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:35:59,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:35:59,518 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 2824 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2824 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 2395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:35:59,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2824 Valid, 3471 Invalid, 2395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:35:59,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:35:59,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 681. [2023-12-20 03:35:59,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 659 states have (on average 1.291350531107739) internal successors, (851), 680 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:59,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 851 transitions. [2023-12-20 03:35:59,523 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 851 transitions. Word has length 97 [2023-12-20 03:35:59,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:35:59,523 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 851 transitions. [2023-12-20 03:35:59,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:35:59,523 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 851 transitions. [2023-12-20 03:35:59,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:35:59,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:35:59,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:35:59,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-20 03:35:59,524 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:35:59,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:35:59,525 INFO L85 PathProgramCache]: Analyzing trace with hash -3808982, now seen corresponding path program 1 times [2023-12-20 03:35:59,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:35:59,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894053698] [2023-12-20 03:35:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:35:59,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:35:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:35:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:35:59,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:35:59,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894053698] [2023-12-20 03:35:59,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894053698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:35:59,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:35:59,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:35:59,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686012880] [2023-12-20 03:35:59,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:35:59,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:35:59,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:35:59,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:35:59,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:35:59,778 INFO L87 Difference]: Start difference. First operand 681 states and 851 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:01,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:01,126 INFO L93 Difference]: Finished difference Result 1534 states and 2037 transitions. [2023-12-20 03:36:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:36:01,127 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 03:36:01,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:01,128 INFO L225 Difference]: With dead ends: 1534 [2023-12-20 03:36:01,128 INFO L226 Difference]: Without dead ends: 1459 [2023-12-20 03:36:01,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:36:01,135 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 6215 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6215 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:01,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6215 Valid, 2893 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:36:01,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2023-12-20 03:36:01,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 685. [2023-12-20 03:36:01,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.2895927601809956) internal successors, (855), 684 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:01,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 855 transitions. [2023-12-20 03:36:01,142 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 855 transitions. Word has length 97 [2023-12-20 03:36:01,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:01,142 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 855 transitions. [2023-12-20 03:36:01,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:01,142 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 855 transitions. [2023-12-20 03:36:01,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:01,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:01,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:01,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-20 03:36:01,143 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:01,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:01,144 INFO L85 PathProgramCache]: Analyzing trace with hash 956375610, now seen corresponding path program 1 times [2023-12-20 03:36:01,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:01,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230949088] [2023-12-20 03:36:01,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:01,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:01,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:01,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230949088] [2023-12-20 03:36:01,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230949088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:01,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:01,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:01,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415872532] [2023-12-20 03:36:01,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:01,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:01,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:01,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:01,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:01,288 INFO L87 Difference]: Start difference. First operand 685 states and 855 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:02,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:02,322 INFO L93 Difference]: Finished difference Result 1163 states and 1501 transitions. [2023-12-20 03:36:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:02,323 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:02,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:02,324 INFO L225 Difference]: With dead ends: 1163 [2023-12-20 03:36:02,324 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:02,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:02,325 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 2120 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:02,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2120 Valid, 2728 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:36:02,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:02,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 681. [2023-12-20 03:36:02,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 659 states have (on average 1.289833080424886) internal successors, (850), 680 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:02,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 850 transitions. [2023-12-20 03:36:02,330 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 850 transitions. Word has length 98 [2023-12-20 03:36:02,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:02,330 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 850 transitions. [2023-12-20 03:36:02,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:02,330 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 850 transitions. [2023-12-20 03:36:02,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:02,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:02,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:02,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-20 03:36:02,331 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:02,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:02,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1152702306, now seen corresponding path program 1 times [2023-12-20 03:36:02,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:02,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659929176] [2023-12-20 03:36:02,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:02,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:02,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:02,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659929176] [2023-12-20 03:36:02,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659929176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:02,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:02,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:02,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22046269] [2023-12-20 03:36:02,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:02,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:02,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:02,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:02,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:02,486 INFO L87 Difference]: Start difference. First operand 681 states and 850 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:03,483 INFO L93 Difference]: Finished difference Result 1088 states and 1389 transitions. [2023-12-20 03:36:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:03,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:03,485 INFO L225 Difference]: With dead ends: 1088 [2023-12-20 03:36:03,485 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:03,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:03,485 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 3054 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3054 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:03,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3054 Valid, 2746 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:36:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:03,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 677. [2023-12-20 03:36:03,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 655 states have (on average 1.2900763358778626) internal successors, (845), 676 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:03,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 845 transitions. [2023-12-20 03:36:03,490 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 845 transitions. Word has length 98 [2023-12-20 03:36:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:03,490 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 845 transitions. [2023-12-20 03:36:03,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 845 transitions. [2023-12-20 03:36:03,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:03,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:03,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:03,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-20 03:36:03,491 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:03,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:03,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1854308446, now seen corresponding path program 1 times [2023-12-20 03:36:03,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:03,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380146493] [2023-12-20 03:36:03,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:03,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:03,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:03,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380146493] [2023-12-20 03:36:03,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380146493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:03,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:03,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:03,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615950092] [2023-12-20 03:36:03,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:03,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:03,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:03,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:03,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:03,706 INFO L87 Difference]: Start difference. First operand 677 states and 845 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:04,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:04,703 INFO L93 Difference]: Finished difference Result 1160 states and 1496 transitions. [2023-12-20 03:36:04,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:04,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:04,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:04,705 INFO L225 Difference]: With dead ends: 1160 [2023-12-20 03:36:04,705 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:04,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:04,705 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 2115 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:04,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 2744 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:36:04,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:04,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 673. [2023-12-20 03:36:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 651 states have (on average 1.2903225806451613) internal successors, (840), 672 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:04,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 840 transitions. [2023-12-20 03:36:04,710 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 840 transitions. Word has length 98 [2023-12-20 03:36:04,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:04,710 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 840 transitions. [2023-12-20 03:36:04,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:04,711 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 840 transitions. [2023-12-20 03:36:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:04,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:04,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:04,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-20 03:36:04,712 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:04,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:04,717 INFO L85 PathProgramCache]: Analyzing trace with hash 72196395, now seen corresponding path program 1 times [2023-12-20 03:36:04,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:04,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70500343] [2023-12-20 03:36:04,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:04,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:04,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:04,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:04,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70500343] [2023-12-20 03:36:04,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70500343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:04,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:04,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:04,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748761476] [2023-12-20 03:36:04,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:04,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:04,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:04,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:04,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:04,945 INFO L87 Difference]: Start difference. First operand 673 states and 840 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:05,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:05,929 INFO L93 Difference]: Finished difference Result 1088 states and 1387 transitions. [2023-12-20 03:36:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:05,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:05,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:05,931 INFO L225 Difference]: With dead ends: 1088 [2023-12-20 03:36:05,931 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:05,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:05,932 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 3036 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 2762 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:05,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3036 Valid, 2762 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:36:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:05,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 669. [2023-12-20 03:36:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 647 states have (on average 1.2905718701700155) internal successors, (835), 668 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 835 transitions. [2023-12-20 03:36:05,938 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 835 transitions. Word has length 98 [2023-12-20 03:36:05,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:05,938 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 835 transitions. [2023-12-20 03:36:05,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:05,938 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 835 transitions. [2023-12-20 03:36:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:05,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:05,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:05,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-20 03:36:05,939 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:05,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:05,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1323796998, now seen corresponding path program 1 times [2023-12-20 03:36:05,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:05,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790841686] [2023-12-20 03:36:05,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:05,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:06,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:06,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:06,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790841686] [2023-12-20 03:36:06,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790841686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:06,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:06,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:06,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571673539] [2023-12-20 03:36:06,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:06,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:06,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:06,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:06,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:06,099 INFO L87 Difference]: Start difference. First operand 669 states and 835 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:07,159 INFO L93 Difference]: Finished difference Result 1163 states and 1497 transitions. [2023-12-20 03:36:07,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:07,159 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:07,160 INFO L225 Difference]: With dead ends: 1163 [2023-12-20 03:36:07,160 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:07,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:07,161 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 2093 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:07,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 2776 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:36:07,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:07,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 665. [2023-12-20 03:36:07,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 643 states have (on average 1.290824261275272) internal successors, (830), 664 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:07,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 830 transitions. [2023-12-20 03:36:07,168 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 830 transitions. Word has length 98 [2023-12-20 03:36:07,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:07,168 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 830 transitions. [2023-12-20 03:36:07,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:07,168 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 830 transitions. [2023-12-20 03:36:07,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:07,169 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:07,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:07,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-20 03:36:07,170 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:07,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:07,170 INFO L85 PathProgramCache]: Analyzing trace with hash -243291087, now seen corresponding path program 1 times [2023-12-20 03:36:07,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:07,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423290822] [2023-12-20 03:36:07,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:07,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:07,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:07,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423290822] [2023-12-20 03:36:07,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423290822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:07,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:07,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:07,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379593974] [2023-12-20 03:36:07,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:07,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:07,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:07,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:07,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:07,308 INFO L87 Difference]: Start difference. First operand 665 states and 830 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:08,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:08,077 INFO L93 Difference]: Finished difference Result 1163 states and 1496 transitions. [2023-12-20 03:36:08,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:08,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:08,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:08,078 INFO L225 Difference]: With dead ends: 1163 [2023-12-20 03:36:08,078 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:08,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:08,079 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 2086 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2086 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:08,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2086 Valid, 2792 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:36:08,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:08,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 661. [2023-12-20 03:36:08,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.2910798122065728) internal successors, (825), 660 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:08,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 825 transitions. [2023-12-20 03:36:08,084 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 825 transitions. Word has length 98 [2023-12-20 03:36:08,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:08,084 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 825 transitions. [2023-12-20 03:36:08,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:08,085 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 825 transitions. [2023-12-20 03:36:08,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:08,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:08,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:08,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-20 03:36:08,085 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:08,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:08,086 INFO L85 PathProgramCache]: Analyzing trace with hash 457834441, now seen corresponding path program 1 times [2023-12-20 03:36:08,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:08,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707595042] [2023-12-20 03:36:08,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:08,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:08,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:08,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:08,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707595042] [2023-12-20 03:36:08,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707595042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:08,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:08,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:08,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707824962] [2023-12-20 03:36:08,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:08,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:08,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:08,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:08,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:08,224 INFO L87 Difference]: Start difference. First operand 661 states and 825 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:08,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:08,861 INFO L93 Difference]: Finished difference Result 1160 states and 1492 transitions. [2023-12-20 03:36:08,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:08,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:08,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:08,863 INFO L225 Difference]: With dead ends: 1160 [2023-12-20 03:36:08,863 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:08,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:08,863 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 2080 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:08,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2080 Valid, 2795 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2063 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:36:08,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:08,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 657. [2023-12-20 03:36:08,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.2913385826771653) internal successors, (820), 656 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:08,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 820 transitions. [2023-12-20 03:36:08,869 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 820 transitions. Word has length 98 [2023-12-20 03:36:08,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:08,869 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 820 transitions. [2023-12-20 03:36:08,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:08,869 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 820 transitions. [2023-12-20 03:36:08,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:08,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:08,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:08,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-20 03:36:08,870 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:08,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:08,870 INFO L85 PathProgramCache]: Analyzing trace with hash -14562761, now seen corresponding path program 1 times [2023-12-20 03:36:08,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:08,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218430250] [2023-12-20 03:36:08,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:08,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:09,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:09,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218430250] [2023-12-20 03:36:09,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218430250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:09,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:09,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:09,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589551537] [2023-12-20 03:36:09,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:09,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:09,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:09,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:09,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:09,018 INFO L87 Difference]: Start difference. First operand 657 states and 820 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:09,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:09,824 INFO L93 Difference]: Finished difference Result 1160 states and 1491 transitions. [2023-12-20 03:36:09,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:09,824 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:09,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:09,825 INFO L225 Difference]: With dead ends: 1160 [2023-12-20 03:36:09,825 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:09,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:09,826 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 2994 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:09,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 2808 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:36:09,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:09,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 653. [2023-12-20 03:36:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.2916006339144215) internal successors, (815), 652 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 815 transitions. [2023-12-20 03:36:09,835 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 815 transitions. Word has length 98 [2023-12-20 03:36:09,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:09,835 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 815 transitions. [2023-12-20 03:36:09,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 815 transitions. [2023-12-20 03:36:09,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:09,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:09,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:09,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-20 03:36:09,837 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:09,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:09,837 INFO L85 PathProgramCache]: Analyzing trace with hash -715470822, now seen corresponding path program 1 times [2023-12-20 03:36:09,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:09,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924668932] [2023-12-20 03:36:09,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:09,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:09,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:09,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924668932] [2023-12-20 03:36:09,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924668932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:09,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:09,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:09,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994998896] [2023-12-20 03:36:09,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:09,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:09,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:09,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:09,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:09,966 INFO L87 Difference]: Start difference. First operand 653 states and 815 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:10,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:10,737 INFO L93 Difference]: Finished difference Result 1088 states and 1382 transitions. [2023-12-20 03:36:10,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:10,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:10,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:10,738 INFO L225 Difference]: With dead ends: 1088 [2023-12-20 03:36:10,738 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:10,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:10,739 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 2985 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:10,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 2814 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:36:10,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:10,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 649. [2023-12-20 03:36:10,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.291866028708134) internal successors, (810), 648 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:10,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 810 transitions. [2023-12-20 03:36:10,744 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 810 transitions. Word has length 98 [2023-12-20 03:36:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:10,744 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 810 transitions. [2023-12-20 03:36:10,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 810 transitions. [2023-12-20 03:36:10,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:10,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:10,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:10,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-20 03:36:10,745 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:10,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:10,745 INFO L85 PathProgramCache]: Analyzing trace with hash 308012238, now seen corresponding path program 1 times [2023-12-20 03:36:10,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:10,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496307163] [2023-12-20 03:36:10,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:10,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:10,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:10,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:10,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496307163] [2023-12-20 03:36:10,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496307163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:10,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:10,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:10,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396928140] [2023-12-20 03:36:10,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:10,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:10,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:10,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:10,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:10,899 INFO L87 Difference]: Start difference. First operand 649 states and 810 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:11,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:11,867 INFO L93 Difference]: Finished difference Result 1160 states and 1489 transitions. [2023-12-20 03:36:11,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:11,867 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:11,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:11,868 INFO L225 Difference]: With dead ends: 1160 [2023-12-20 03:36:11,868 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:11,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:11,869 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 2065 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:11,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 2824 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:36:11,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:11,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 645. [2023-12-20 03:36:11,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.2921348314606742) internal successors, (805), 644 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 805 transitions. [2023-12-20 03:36:11,874 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 805 transitions. Word has length 98 [2023-12-20 03:36:11,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:11,874 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 805 transitions. [2023-12-20 03:36:11,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:11,874 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 805 transitions. [2023-12-20 03:36:11,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:11,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:11,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:11,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-20 03:36:11,875 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:11,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:11,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1209361993, now seen corresponding path program 1 times [2023-12-20 03:36:11,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:11,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221744130] [2023-12-20 03:36:11,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:11,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:12,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:12,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221744130] [2023-12-20 03:36:12,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221744130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:12,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:12,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:12,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111266142] [2023-12-20 03:36:12,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:12,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:12,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:12,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:12,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:12,039 INFO L87 Difference]: Start difference. First operand 645 states and 805 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:13,063 INFO L93 Difference]: Finished difference Result 1159 states and 1487 transitions. [2023-12-20 03:36:13,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:36:13,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:13,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:13,065 INFO L225 Difference]: With dead ends: 1159 [2023-12-20 03:36:13,065 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:13,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:36:13,066 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 2792 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2792 SdHoareTripleChecker+Valid, 3273 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:13,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2792 Valid, 3273 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:36:13,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 645. [2023-12-20 03:36:13,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.290529695024077) internal successors, (804), 644 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 804 transitions. [2023-12-20 03:36:13,070 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 804 transitions. Word has length 98 [2023-12-20 03:36:13,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:13,071 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 804 transitions. [2023-12-20 03:36:13,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:13,071 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 804 transitions. [2023-12-20 03:36:13,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:36:13,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:13,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:13,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-12-20 03:36:13,072 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:13,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:13,072 INFO L85 PathProgramCache]: Analyzing trace with hash -817835515, now seen corresponding path program 1 times [2023-12-20 03:36:13,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:13,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754034753] [2023-12-20 03:36:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:13,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:13,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:13,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754034753] [2023-12-20 03:36:13,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754034753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:13,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:13,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:13,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195244159] [2023-12-20 03:36:13,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:13,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:13,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:13,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:13,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:13,220 INFO L87 Difference]: Start difference. First operand 645 states and 804 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:13,908 INFO L93 Difference]: Finished difference Result 1158 states and 1485 transitions. [2023-12-20 03:36:13,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:13,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:36:13,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:13,909 INFO L225 Difference]: With dead ends: 1158 [2023-12-20 03:36:13,909 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:36:13,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:13,917 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 1967 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:13,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1967 Valid, 3001 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:36:13,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:36:13,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 641. [2023-12-20 03:36:13,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.2907915993537964) internal successors, (799), 640 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:13,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 799 transitions. [2023-12-20 03:36:13,922 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 799 transitions. Word has length 98 [2023-12-20 03:36:13,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:13,923 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 799 transitions. [2023-12-20 03:36:13,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:13,923 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 799 transitions. [2023-12-20 03:36:13,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:36:13,924 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:13,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:13,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-12-20 03:36:13,924 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:13,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:13,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1517389818, now seen corresponding path program 1 times [2023-12-20 03:36:13,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:13,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201972918] [2023-12-20 03:36:13,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:13,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:14,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:14,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:14,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201972918] [2023-12-20 03:36:14,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201972918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:14,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:14,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:36:14,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243441716] [2023-12-20 03:36:14,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:14,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:36:14,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:14,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:36:14,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:36:14,529 INFO L87 Difference]: Start difference. First operand 641 states and 799 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:15,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:15,577 INFO L93 Difference]: Finished difference Result 2003 states and 2641 transitions. [2023-12-20 03:36:15,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:36:15,578 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:36:15,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:15,579 INFO L225 Difference]: With dead ends: 2003 [2023-12-20 03:36:15,580 INFO L226 Difference]: Without dead ends: 1865 [2023-12-20 03:36:15,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:36:15,580 INFO L413 NwaCegarLoop]: 1814 mSDtfsCounter, 3630 mSDsluCounter, 12499 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3630 SdHoareTripleChecker+Valid, 14313 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:15,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3630 Valid, 14313 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:36:15,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2023-12-20 03:36:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 578. [2023-12-20 03:36:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 560 states have (on average 1.2875) internal successors, (721), 577 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) [2023-12-20 03:36:15,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 721 transitions. [2023-12-20 03:36:15,587 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 721 transitions. Word has length 99 [2023-12-20 03:36:15,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:15,587 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 721 transitions. [2023-12-20 03:36:15,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:15,587 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 721 transitions. [2023-12-20 03:36:15,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:36:15,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:15,588 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:15,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-12-20 03:36:15,588 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:15,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:15,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2051081877, now seen corresponding path program 1 times [2023-12-20 03:36:15,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:15,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139751246] [2023-12-20 03:36:15,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:15,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:15,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:15,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:15,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139751246] [2023-12-20 03:36:15,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139751246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:15,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:15,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:36:15,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462787248] [2023-12-20 03:36:15,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:15,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:36:15,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:15,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:36:15,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:36:15,942 INFO L87 Difference]: Start difference. First operand 578 states and 721 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:16,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:16,883 INFO L93 Difference]: Finished difference Result 918 states and 1154 transitions. [2023-12-20 03:36:16,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 03:36:16,883 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:36:16,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:16,884 INFO L225 Difference]: With dead ends: 918 [2023-12-20 03:36:16,884 INFO L226 Difference]: Without dead ends: 839 [2023-12-20 03:36:16,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:36:16,885 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 3395 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3395 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:16,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3395 Valid, 3591 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:36:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2023-12-20 03:36:16,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 574. [2023-12-20 03:36:16,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 557 states have (on average 1.2854578096947935) internal successors, (716), 573 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:16,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 716 transitions. [2023-12-20 03:36:16,889 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 716 transitions. Word has length 99 [2023-12-20 03:36:16,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:16,890 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 716 transitions. [2023-12-20 03:36:16,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:16,890 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 716 transitions. [2023-12-20 03:36:16,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:36:16,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:16,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:16,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-12-20 03:36:16,891 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:16,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:16,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1752184082, now seen corresponding path program 1 times [2023-12-20 03:36:16,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:16,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513446991] [2023-12-20 03:36:16,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:16,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:17,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:17,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513446991] [2023-12-20 03:36:17,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513446991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:17,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:17,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:36:17,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661146999] [2023-12-20 03:36:17,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:17,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:36:17,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:17,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:36:17,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:36:17,327 INFO L87 Difference]: Start difference. First operand 574 states and 716 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:18,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:18,308 INFO L93 Difference]: Finished difference Result 918 states and 1152 transitions. [2023-12-20 03:36:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:36:18,308 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:36:18,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:18,309 INFO L225 Difference]: With dead ends: 918 [2023-12-20 03:36:18,309 INFO L226 Difference]: Without dead ends: 839 [2023-12-20 03:36:18,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:36:18,310 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 3380 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:18,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3380 Valid, 2960 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:36:18,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2023-12-20 03:36:18,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 570. [2023-12-20 03:36:18,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 554 states have (on average 1.2833935018050542) internal successors, (711), 569 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 711 transitions. [2023-12-20 03:36:18,314 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 711 transitions. Word has length 99 [2023-12-20 03:36:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:18,314 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 711 transitions. [2023-12-20 03:36:18,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 711 transitions. [2023-12-20 03:36:18,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:36:18,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:18,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:18,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-12-20 03:36:18,315 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:18,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:18,315 INFO L85 PathProgramCache]: Analyzing trace with hash -28333066, now seen corresponding path program 1 times [2023-12-20 03:36:18,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:18,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686683987] [2023-12-20 03:36:18,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:18,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:19,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:19,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:19,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686683987] [2023-12-20 03:36:19,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686683987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:19,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:19,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-20 03:36:19,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548794517] [2023-12-20 03:36:19,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:19,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-20 03:36:19,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:19,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-20 03:36:19,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=962, Unknown=0, NotChecked=0, Total=1056 [2023-12-20 03:36:19,871 INFO L87 Difference]: Start difference. First operand 570 states and 711 transitions. Second operand has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:30,785 INFO L93 Difference]: Finished difference Result 2455 states and 3109 transitions. [2023-12-20 03:36:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-20 03:36:30,785 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:36:30,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:30,787 INFO L225 Difference]: With dead ends: 2455 [2023-12-20 03:36:30,787 INFO L226 Difference]: Without dead ends: 2373 [2023-12-20 03:36:30,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=520, Invalid=3020, Unknown=0, NotChecked=0, Total=3540 [2023-12-20 03:36:30,788 INFO L413 NwaCegarLoop]: 2135 mSDtfsCounter, 7684 mSDsluCounter, 33687 mSDsCounter, 0 mSdLazyCounter, 20103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7684 SdHoareTripleChecker+Valid, 35822 SdHoareTripleChecker+Invalid, 20106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:30,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7684 Valid, 35822 Invalid, 20106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 20103 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-12-20 03:36:30,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2023-12-20 03:36:30,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 594. [2023-12-20 03:36:30,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 578 states have (on average 1.282006920415225) internal successors, (741), 593 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:30,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 741 transitions. [2023-12-20 03:36:30,796 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 741 transitions. Word has length 99 [2023-12-20 03:36:30,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:30,796 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 741 transitions. [2023-12-20 03:36:30,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:30,797 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 741 transitions. [2023-12-20 03:36:30,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:36:30,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:30,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:30,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-12-20 03:36:30,807 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:30,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:30,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1080698848, now seen corresponding path program 1 times [2023-12-20 03:36:30,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:30,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263184601] [2023-12-20 03:36:30,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:30,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:31,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:31,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263184601] [2023-12-20 03:36:31,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263184601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:31,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:31,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:36:31,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347997231] [2023-12-20 03:36:31,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:31,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:36:31,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:31,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:36:31,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:36:31,179 INFO L87 Difference]: Start difference. First operand 594 states and 741 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:32,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:32,018 INFO L93 Difference]: Finished difference Result 1932 states and 2552 transitions. [2023-12-20 03:36:32,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 03:36:32,019 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:36:32,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:32,020 INFO L225 Difference]: With dead ends: 1932 [2023-12-20 03:36:32,021 INFO L226 Difference]: Without dead ends: 1808 [2023-12-20 03:36:32,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2023-12-20 03:36:32,021 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 4795 mSDsluCounter, 9687 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 11371 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:32,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 11371 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:36:32,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2023-12-20 03:36:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 545. [2023-12-20 03:36:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 530 states have (on average 1.2792452830188679) internal successors, (678), 544 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:32,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 678 transitions. [2023-12-20 03:36:32,027 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 678 transitions. Word has length 99 [2023-12-20 03:36:32,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:32,027 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 678 transitions. [2023-12-20 03:36:32,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:32,027 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 678 transitions. [2023-12-20 03:36:32,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:36:32,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:32,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:32,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-12-20 03:36:32,028 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:32,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:32,028 INFO L85 PathProgramCache]: Analyzing trace with hash -122361806, now seen corresponding path program 1 times [2023-12-20 03:36:32,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:32,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626394144] [2023-12-20 03:36:32,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:32,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:32,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:32,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:32,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626394144] [2023-12-20 03:36:32,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626394144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:32,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:32,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-20 03:36:32,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784249868] [2023-12-20 03:36:32,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:32,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-20 03:36:32,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:32,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-20 03:36:32,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:36:32,580 INFO L87 Difference]: Start difference. First operand 545 states and 678 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:33,779 INFO L93 Difference]: Finished difference Result 1406 states and 1832 transitions. [2023-12-20 03:36:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 03:36:33,779 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:36:33,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:33,781 INFO L225 Difference]: With dead ends: 1406 [2023-12-20 03:36:33,781 INFO L226 Difference]: Without dead ends: 1266 [2023-12-20 03:36:33,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2023-12-20 03:36:33,781 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 4946 mSDsluCounter, 9784 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4946 SdHoareTripleChecker+Valid, 11076 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:33,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4946 Valid, 11076 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:36:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2023-12-20 03:36:33,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 545. [2023-12-20 03:36:33,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 530 states have (on average 1.2773584905660378) internal successors, (677), 544 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 677 transitions. [2023-12-20 03:36:33,786 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 677 transitions. Word has length 99 [2023-12-20 03:36:33,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:33,786 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 677 transitions. [2023-12-20 03:36:33,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 677 transitions. [2023-12-20 03:36:33,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:36:33,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:33,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:33,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-12-20 03:36:33,787 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:33,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:33,787 INFO L85 PathProgramCache]: Analyzing trace with hash -448483545, now seen corresponding path program 1 times [2023-12-20 03:36:33,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:33,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931524008] [2023-12-20 03:36:33,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:33,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:34,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:34,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:34,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931524008] [2023-12-20 03:36:34,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931524008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:34,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:34,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:36:34,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080811241] [2023-12-20 03:36:34,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:34,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:36:34,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:34,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:36:34,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:36:34,121 INFO L87 Difference]: Start difference. First operand 545 states and 677 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:35,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:35,009 INFO L93 Difference]: Finished difference Result 863 states and 1083 transitions. [2023-12-20 03:36:35,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:36:35,009 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:36:35,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:35,010 INFO L225 Difference]: With dead ends: 863 [2023-12-20 03:36:35,010 INFO L226 Difference]: Without dead ends: 784 [2023-12-20 03:36:35,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:36:35,011 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 3056 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:35,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3056 Valid, 2699 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:36:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2023-12-20 03:36:35,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 541. [2023-12-20 03:36:35,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 527 states have (on average 1.2751423149905123) internal successors, (672), 540 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:35,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 672 transitions. [2023-12-20 03:36:35,015 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 672 transitions. Word has length 99 [2023-12-20 03:36:35,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:35,015 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 672 transitions. [2023-12-20 03:36:35,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 672 transitions. [2023-12-20 03:36:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:36:35,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:35,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:35,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2023-12-20 03:36:35,017 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:35,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:35,017 INFO L85 PathProgramCache]: Analyzing trace with hash 2065966603, now seen corresponding path program 1 times [2023-12-20 03:36:35,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:35,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556927531] [2023-12-20 03:36:35,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:35,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:35,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:35,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556927531] [2023-12-20 03:36:35,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556927531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:35,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:35,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:36:35,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158853381] [2023-12-20 03:36:35,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:35,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:36:35,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:35,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:36:35,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:36:35,296 INFO L87 Difference]: Start difference. First operand 541 states and 672 transitions. Second operand has 11 states, 11 states have (on average 9.0) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:35,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:35,834 INFO L93 Difference]: Finished difference Result 1243 states and 1600 transitions. [2023-12-20 03:36:35,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 03:36:35,835 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:36:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:35,836 INFO L225 Difference]: With dead ends: 1243 [2023-12-20 03:36:35,836 INFO L226 Difference]: Without dead ends: 951 [2023-12-20 03:36:35,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:36:35,837 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 2785 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:35,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 2604 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:36:35,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-12-20 03:36:35,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 324. [2023-12-20 03:36:35,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 315 states have (on average 1.2476190476190476) internal successors, (393), 323 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:35,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 393 transitions. [2023-12-20 03:36:35,840 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 393 transitions. Word has length 99 [2023-12-20 03:36:35,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:35,840 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 393 transitions. [2023-12-20 03:36:35,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:35,840 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 393 transitions. [2023-12-20 03:36:35,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:36:35,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:35,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:35,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2023-12-20 03:36:35,841 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:35,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:35,841 INFO L85 PathProgramCache]: Analyzing trace with hash -480559089, now seen corresponding path program 1 times [2023-12-20 03:36:35,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:35,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233625768] [2023-12-20 03:36:35,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:35,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:36,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:36,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:36,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233625768] [2023-12-20 03:36:36,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233625768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:36,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:36,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-20 03:36:36,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583450895] [2023-12-20 03:36:36,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:36,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-20 03:36:36,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:36,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-20 03:36:36,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:36:36,499 INFO L87 Difference]: Start difference. First operand 324 states and 393 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:37,874 INFO L93 Difference]: Finished difference Result 1267 states and 1718 transitions. [2023-12-20 03:36:37,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-20 03:36:37,875 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 03:36:37,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:37,876 INFO L225 Difference]: With dead ends: 1267 [2023-12-20 03:36:37,876 INFO L226 Difference]: Without dead ends: 1163 [2023-12-20 03:36:37,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=247, Invalid=1013, Unknown=0, NotChecked=0, Total=1260 [2023-12-20 03:36:37,877 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 2173 mSDsluCounter, 7847 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2173 SdHoareTripleChecker+Valid, 8804 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:37,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2173 Valid, 8804 Invalid, 1645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:36:37,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2023-12-20 03:36:37,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 330. [2023-12-20 03:36:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 321 states have (on average 1.2461059190031152) internal successors, (400), 329 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:37,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 400 transitions. [2023-12-20 03:36:37,882 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 400 transitions. Word has length 100 [2023-12-20 03:36:37,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:37,882 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 400 transitions. [2023-12-20 03:36:37,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:37,882 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 400 transitions. [2023-12-20 03:36:37,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:36:37,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:37,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:37,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2023-12-20 03:36:37,883 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:37,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:37,884 INFO L85 PathProgramCache]: Analyzing trace with hash -125460370, now seen corresponding path program 1 times [2023-12-20 03:36:37,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:37,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570331563] [2023-12-20 03:36:37,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:37,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:38,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:38,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570331563] [2023-12-20 03:36:38,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570331563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:38,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:38,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:38,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024351235] [2023-12-20 03:36:38,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:38,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:38,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:38,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:38,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:38,113 INFO L87 Difference]: Start difference. First operand 330 states and 400 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:38,448 INFO L93 Difference]: Finished difference Result 478 states and 587 transitions. [2023-12-20 03:36:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 03:36:38,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 03:36:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:38,449 INFO L225 Difference]: With dead ends: 478 [2023-12-20 03:36:38,449 INFO L226 Difference]: Without dead ends: 471 [2023-12-20 03:36:38,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:36:38,450 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1123 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:38,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 1222 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:36:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-20 03:36:38,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 330. [2023-12-20 03:36:38,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 321 states have (on average 1.2429906542056075) internal successors, (399), 329 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:38,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 399 transitions. [2023-12-20 03:36:38,453 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 399 transitions. Word has length 100 [2023-12-20 03:36:38,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:38,454 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 399 transitions. [2023-12-20 03:36:38,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:38,454 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 399 transitions. [2023-12-20 03:36:38,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:36:38,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:38,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:38,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2023-12-20 03:36:38,455 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:38,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:38,455 INFO L85 PathProgramCache]: Analyzing trace with hash 38543128, now seen corresponding path program 1 times [2023-12-20 03:36:38,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:38,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501211361] [2023-12-20 03:36:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:38,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:38,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:38,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:38,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501211361] [2023-12-20 03:36:38,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501211361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:38,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:38,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:38,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579604592] [2023-12-20 03:36:38,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:38,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:38,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:38,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:38,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:38,621 INFO L87 Difference]: Start difference. First operand 330 states and 399 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:39,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:39,024 INFO L93 Difference]: Finished difference Result 724 states and 944 transitions. [2023-12-20 03:36:39,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:36:39,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 03:36:39,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:39,025 INFO L225 Difference]: With dead ends: 724 [2023-12-20 03:36:39,025 INFO L226 Difference]: Without dead ends: 631 [2023-12-20 03:36:39,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:36:39,026 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 1468 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:39,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 1482 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:36:39,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-20 03:36:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 330. [2023-12-20 03:36:39,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 321 states have (on average 1.2398753894080996) internal successors, (398), 329 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 398 transitions. [2023-12-20 03:36:39,029 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 398 transitions. Word has length 100 [2023-12-20 03:36:39,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:39,030 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 398 transitions. [2023-12-20 03:36:39,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:39,030 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 398 transitions. [2023-12-20 03:36:39,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:36:39,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:39,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:39,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2023-12-20 03:36:39,031 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:39,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:39,032 INFO L85 PathProgramCache]: Analyzing trace with hash -801357341, now seen corresponding path program 1 times [2023-12-20 03:36:39,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:39,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601142807] [2023-12-20 03:36:39,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:39,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:39,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:39,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:39,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601142807] [2023-12-20 03:36:39,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601142807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:39,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:39,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:36:39,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832939573] [2023-12-20 03:36:39,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:39,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:36:39,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:39,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:36:39,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:36:39,364 INFO L87 Difference]: Start difference. First operand 330 states and 398 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:40,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:40,017 INFO L93 Difference]: Finished difference Result 673 states and 861 transitions. [2023-12-20 03:36:40,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 03:36:40,017 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 03:36:40,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:40,018 INFO L225 Difference]: With dead ends: 673 [2023-12-20 03:36:40,018 INFO L226 Difference]: Without dead ends: 666 [2023-12-20 03:36:40,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=541, Unknown=0, NotChecked=0, Total=756 [2023-12-20 03:36:40,019 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 3340 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3340 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:40,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3340 Valid, 1329 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:36:40,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2023-12-20 03:36:40,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 334. [2023-12-20 03:36:40,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 325 states have (on average 1.236923076923077) internal successors, (402), 333 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 402 transitions. [2023-12-20 03:36:40,024 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 402 transitions. Word has length 100 [2023-12-20 03:36:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:40,024 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 402 transitions. [2023-12-20 03:36:40,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:40,024 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 402 transitions. [2023-12-20 03:36:40,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:36:40,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:40,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:40,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2023-12-20 03:36:40,025 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:40,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:40,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1340768153, now seen corresponding path program 1 times [2023-12-20 03:36:40,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:40,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138454621] [2023-12-20 03:36:40,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:40,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:40,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:40,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138454621] [2023-12-20 03:36:40,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138454621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:40,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:40,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:36:40,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724704375] [2023-12-20 03:36:40,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:40,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:36:40,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:36:40,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:36:40,415 INFO L87 Difference]: Start difference. First operand 334 states and 402 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:40,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:40,863 INFO L93 Difference]: Finished difference Result 566 states and 712 transitions. [2023-12-20 03:36:40,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 03:36:40,863 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 03:36:40,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:40,864 INFO L225 Difference]: With dead ends: 566 [2023-12-20 03:36:40,864 INFO L226 Difference]: Without dead ends: 476 [2023-12-20 03:36:40,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:36:40,864 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 1532 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:40,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 2509 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:36:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-12-20 03:36:40,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 299. [2023-12-20 03:36:40,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 291 states have (on average 1.2302405498281788) internal successors, (358), 298 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:40,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 358 transitions. [2023-12-20 03:36:40,867 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 358 transitions. Word has length 100 [2023-12-20 03:36:40,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:40,867 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 358 transitions. [2023-12-20 03:36:40,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:40,867 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 358 transitions. [2023-12-20 03:36:40,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:36:40,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:40,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:40,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2023-12-20 03:36:40,868 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:40,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:40,868 INFO L85 PathProgramCache]: Analyzing trace with hash 885897345, now seen corresponding path program 1 times [2023-12-20 03:36:40,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:40,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411389906] [2023-12-20 03:36:40,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:40,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:41,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:41,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:41,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411389906] [2023-12-20 03:36:41,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411389906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:41,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:41,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:36:41,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261657316] [2023-12-20 03:36:41,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:41,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:36:41,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:41,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:36:41,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:36:41,218 INFO L87 Difference]: Start difference. First operand 299 states and 358 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:41,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:41,717 INFO L93 Difference]: Finished difference Result 446 states and 543 transitions. [2023-12-20 03:36:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:36:41,717 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 03:36:41,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:41,718 INFO L225 Difference]: With dead ends: 446 [2023-12-20 03:36:41,718 INFO L226 Difference]: Without dead ends: 442 [2023-12-20 03:36:41,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:36:41,718 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1879 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:41,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 1515 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:36:41,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-20 03:36:41,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 295. [2023-12-20 03:36:41,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 288 states have (on average 1.2291666666666667) internal successors, (354), 294 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:41,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 354 transitions. [2023-12-20 03:36:41,721 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 354 transitions. Word has length 100 [2023-12-20 03:36:41,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:41,721 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 354 transitions. [2023-12-20 03:36:41,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:41,721 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 354 transitions. [2023-12-20 03:36:41,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:36:41,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:41,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:41,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2023-12-20 03:36:41,721 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:41,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:41,722 INFO L85 PathProgramCache]: Analyzing trace with hash -894619803, now seen corresponding path program 1 times [2023-12-20 03:36:41,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:41,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497215921] [2023-12-20 03:36:41,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:41,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:42,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:42,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:42,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497215921] [2023-12-20 03:36:42,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497215921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:42,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:42,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:36:42,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321153071] [2023-12-20 03:36:42,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:42,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:36:42,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:42,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:36:42,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:36:42,051 INFO L87 Difference]: Start difference. First operand 295 states and 354 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:42,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:42,656 INFO L93 Difference]: Finished difference Result 982 states and 1283 transitions. [2023-12-20 03:36:42,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 03:36:42,657 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 03:36:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:42,657 INFO L225 Difference]: With dead ends: 982 [2023-12-20 03:36:42,658 INFO L226 Difference]: Without dead ends: 842 [2023-12-20 03:36:42,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:36:42,658 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 1487 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 5686 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:42,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 5686 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:36:42,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2023-12-20 03:36:42,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 230. [2023-12-20 03:36:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 226 states have (on average 1.2256637168141593) internal successors, (277), 229 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 277 transitions. [2023-12-20 03:36:42,661 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 277 transitions. Word has length 100 [2023-12-20 03:36:42,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:42,661 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 277 transitions. [2023-12-20 03:36:42,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 277 transitions. [2023-12-20 03:36:42,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 03:36:42,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:42,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:42,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2023-12-20 03:36:42,662 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:42,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:42,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1435047818, now seen corresponding path program 1 times [2023-12-20 03:36:42,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:42,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228553695] [2023-12-20 03:36:42,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:42,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:42,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:42,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:42,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228553695] [2023-12-20 03:36:42,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228553695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:42,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:42,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:36:42,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233972223] [2023-12-20 03:36:42,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:42,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:42,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:42,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:42,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:42,804 INFO L87 Difference]: Start difference. First operand 230 states and 277 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:43,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:43,187 INFO L93 Difference]: Finished difference Result 343 states and 426 transitions. [2023-12-20 03:36:43,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 03:36:43,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-20 03:36:43,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:43,188 INFO L225 Difference]: With dead ends: 343 [2023-12-20 03:36:43,188 INFO L226 Difference]: Without dead ends: 336 [2023-12-20 03:36:43,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-20 03:36:43,188 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 806 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:43,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 971 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:36:43,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-20 03:36:43,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 226. [2023-12-20 03:36:43,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 222 states have (on average 1.2252252252252251) internal successors, (272), 225 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 272 transitions. [2023-12-20 03:36:43,190 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 272 transitions. Word has length 101 [2023-12-20 03:36:43,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:43,191 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 272 transitions. [2023-12-20 03:36:43,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:43,191 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 272 transitions. [2023-12-20 03:36:43,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 03:36:43,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:43,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:43,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2023-12-20 03:36:43,191 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:43,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:43,192 INFO L85 PathProgramCache]: Analyzing trace with hash 912718675, now seen corresponding path program 1 times [2023-12-20 03:36:43,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:43,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477757175] [2023-12-20 03:36:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:43,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:43,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:43,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:43,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477757175] [2023-12-20 03:36:43,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477757175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:43,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:43,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:36:43,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366423455] [2023-12-20 03:36:43,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:43,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:36:43,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:43,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:36:43,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:36:43,568 INFO L87 Difference]: Start difference. First operand 226 states and 272 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:44,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:44,102 INFO L93 Difference]: Finished difference Result 492 states and 646 transitions. [2023-12-20 03:36:44,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:36:44,103 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 03:36:44,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:44,103 INFO L225 Difference]: With dead ends: 492 [2023-12-20 03:36:44,103 INFO L226 Difference]: Without dead ends: 486 [2023-12-20 03:36:44,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:36:44,104 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 1372 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:44,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 2880 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:36:44,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-12-20 03:36:44,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 220. [2023-12-20 03:36:44,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 217 states have (on average 1.2258064516129032) internal successors, (266), 219 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:44,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 266 transitions. [2023-12-20 03:36:44,106 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 266 transitions. Word has length 102 [2023-12-20 03:36:44,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:44,106 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 266 transitions. [2023-12-20 03:36:44,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:44,106 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 266 transitions. [2023-12-20 03:36:44,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 03:36:44,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:44,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:44,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2023-12-20 03:36:44,107 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:44,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:44,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1107731518, now seen corresponding path program 1 times [2023-12-20 03:36:44,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:44,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767368380] [2023-12-20 03:36:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:44,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:45,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:45,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767368380] [2023-12-20 03:36:45,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767368380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:45,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:45,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-20 03:36:45,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348676205] [2023-12-20 03:36:45,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:45,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-20 03:36:45,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:45,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-20 03:36:45,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=949, Unknown=0, NotChecked=0, Total=1056 [2023-12-20 03:36:45,580 INFO L87 Difference]: Start difference. First operand 220 states and 266 transitions. Second operand has 33 states, 33 states have (on average 3.090909090909091) internal successors, (102), 32 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:50,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:50,173 INFO L93 Difference]: Finished difference Result 965 states and 1253 transitions. [2023-12-20 03:36:50,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-20 03:36:50,174 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.090909090909091) internal successors, (102), 32 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 03:36:50,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:50,175 INFO L225 Difference]: With dead ends: 965 [2023-12-20 03:36:50,175 INFO L226 Difference]: Without dead ends: 957 [2023-12-20 03:36:50,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=546, Invalid=2994, Unknown=0, NotChecked=0, Total=3540 [2023-12-20 03:36:50,175 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 3136 mSDsluCounter, 12643 mSDsCounter, 0 mSdLazyCounter, 6627 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3136 SdHoareTripleChecker+Valid, 13534 SdHoareTripleChecker+Invalid, 6629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:50,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3136 Valid, 13534 Invalid, 6629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6627 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-20 03:36:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2023-12-20 03:36:50,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 244. [2023-12-20 03:36:50,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 241 states have (on average 1.2240663900414939) internal successors, (295), 243 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:50,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 295 transitions. [2023-12-20 03:36:50,178 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 295 transitions. Word has length 102 [2023-12-20 03:36:50,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:50,179 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 295 transitions. [2023-12-20 03:36:50,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.090909090909091) internal successors, (102), 32 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:50,179 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 295 transitions. [2023-12-20 03:36:50,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 03:36:50,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:50,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:50,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2023-12-20 03:36:50,183 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:50,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:50,184 INFO L85 PathProgramCache]: Analyzing trace with hash 110806707, now seen corresponding path program 1 times [2023-12-20 03:36:50,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:50,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509280852] [2023-12-20 03:36:50,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:50,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:51,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:51,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:51,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509280852] [2023-12-20 03:36:51,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509280852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:51,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:51,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2023-12-20 03:36:51,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658720223] [2023-12-20 03:36:51,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:51,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-20 03:36:51,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:51,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-20 03:36:51,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=838, Unknown=0, NotChecked=0, Total=930 [2023-12-20 03:36:51,681 INFO L87 Difference]: Start difference. First operand 244 states and 295 transitions. Second operand has 31 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 31 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:56,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:56,367 INFO L93 Difference]: Finished difference Result 956 states and 1245 transitions. [2023-12-20 03:36:56,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-20 03:36:56,368 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 31 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 03:36:56,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:56,369 INFO L225 Difference]: With dead ends: 956 [2023-12-20 03:36:56,369 INFO L226 Difference]: Without dead ends: 948 [2023-12-20 03:36:56,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=483, Invalid=2709, Unknown=0, NotChecked=0, Total=3192 [2023-12-20 03:36:56,369 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 2648 mSDsluCounter, 13385 mSDsCounter, 0 mSdLazyCounter, 7452 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2648 SdHoareTripleChecker+Valid, 14238 SdHoareTripleChecker+Invalid, 7457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:56,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2648 Valid, 14238 Invalid, 7457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7452 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-20 03:36:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2023-12-20 03:36:56,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 253. [2023-12-20 03:36:56,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 250 states have (on average 1.224) internal successors, (306), 252 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:56,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 306 transitions. [2023-12-20 03:36:56,372 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 306 transitions. Word has length 102 [2023-12-20 03:36:56,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:56,372 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 306 transitions. [2023-12-20 03:36:56,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 31 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:56,373 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 306 transitions. [2023-12-20 03:36:56,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 03:36:56,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:56,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:56,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2023-12-20 03:36:56,373 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:56,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:56,373 INFO L85 PathProgramCache]: Analyzing trace with hash -2140279419, now seen corresponding path program 1 times [2023-12-20 03:36:56,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:56,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310012675] [2023-12-20 03:36:56,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:56,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:56,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:56,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:56,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310012675] [2023-12-20 03:36:56,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310012675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:56,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:56,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:36:56,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502563513] [2023-12-20 03:36:56,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:56,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:36:56,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:56,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:36:56,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:36:56,754 INFO L87 Difference]: Start difference. First operand 253 states and 306 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:57,376 INFO L93 Difference]: Finished difference Result 687 states and 923 transitions. [2023-12-20 03:36:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:36:57,377 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-20 03:36:57,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:57,378 INFO L225 Difference]: With dead ends: 687 [2023-12-20 03:36:57,378 INFO L226 Difference]: Without dead ends: 672 [2023-12-20 03:36:57,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:36:57,378 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1433 mSDsluCounter, 3993 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:57,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 4561 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:36:57,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-12-20 03:36:57,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 232. [2023-12-20 03:36:57,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 230 states have (on average 1.2260869565217392) internal successors, (282), 231 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:57,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 282 transitions. [2023-12-20 03:36:57,381 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 282 transitions. Word has length 103 [2023-12-20 03:36:57,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:57,381 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 282 transitions. [2023-12-20 03:36:57,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:57,381 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 282 transitions. [2023-12-20 03:36:57,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 03:36:57,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:57,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:57,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2023-12-20 03:36:57,382 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:57,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:57,382 INFO L85 PathProgramCache]: Analyzing trace with hash 131660042, now seen corresponding path program 1 times [2023-12-20 03:36:57,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:57,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714605375] [2023-12-20 03:36:57,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:57,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:57,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:57,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:57,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714605375] [2023-12-20 03:36:57,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714605375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:57,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:57,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:36:57,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095221926] [2023-12-20 03:36:57,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:57,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:36:57,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:57,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:36:57,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:36:57,748 INFO L87 Difference]: Start difference. First operand 232 states and 282 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:58,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:58,424 INFO L93 Difference]: Finished difference Result 664 states and 898 transitions. [2023-12-20 03:36:58,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 03:36:58,425 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-20 03:36:58,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:58,425 INFO L225 Difference]: With dead ends: 664 [2023-12-20 03:36:58,426 INFO L226 Difference]: Without dead ends: 638 [2023-12-20 03:36:58,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:36:58,426 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 1396 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 4397 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:58,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 4397 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:36:58,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-12-20 03:36:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 184. [2023-12-20 03:36:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.2349726775956285) internal successors, (226), 183 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:58,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 226 transitions. [2023-12-20 03:36:58,428 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 226 transitions. Word has length 103 [2023-12-20 03:36:58,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:58,428 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 226 transitions. [2023-12-20 03:36:58,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:58,429 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 226 transitions. [2023-12-20 03:36:58,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-20 03:36:58,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:58,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:58,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2023-12-20 03:36:58,429 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:58,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:58,430 INFO L85 PathProgramCache]: Analyzing trace with hash -261467090, now seen corresponding path program 1 times [2023-12-20 03:36:58,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:58,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439252145] [2023-12-20 03:36:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:58,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:58,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:58,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:58,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439252145] [2023-12-20 03:36:58,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439252145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:58,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:58,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:36:58,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158942217] [2023-12-20 03:36:58,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:58,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:58,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:58,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:58,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:58,576 INFO L87 Difference]: Start difference. First operand 184 states and 226 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:58,761 INFO L93 Difference]: Finished difference Result 1084 states and 1546 transitions. [2023-12-20 03:36:58,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 03:36:58,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2023-12-20 03:36:58,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:58,785 INFO L225 Difference]: With dead ends: 1084 [2023-12-20 03:36:58,785 INFO L226 Difference]: Without dead ends: 1009 [2023-12-20 03:36:58,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:36:58,786 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1795 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:58,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 3628 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:36:58,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2023-12-20 03:36:58,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 257. [2023-12-20 03:36:58,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.30078125) internal successors, (333), 256 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:58,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 333 transitions. [2023-12-20 03:36:58,790 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 333 transitions. Word has length 134 [2023-12-20 03:36:58,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:58,790 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 333 transitions. [2023-12-20 03:36:58,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:58,790 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 333 transitions. [2023-12-20 03:36:58,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 03:36:58,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:58,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:58,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2023-12-20 03:36:58,791 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:58,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:58,792 INFO L85 PathProgramCache]: Analyzing trace with hash 225254308, now seen corresponding path program 1 times [2023-12-20 03:36:58,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:58,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646923816] [2023-12-20 03:36:58,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:58,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:58,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:58,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646923816] [2023-12-20 03:36:58,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646923816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:58,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:58,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:36:58,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161857409] [2023-12-20 03:36:58,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:58,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:58,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:58,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:58,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:58,916 INFO L87 Difference]: Start difference. First operand 257 states and 333 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:59,047 INFO L93 Difference]: Finished difference Result 1220 states and 1743 transitions. [2023-12-20 03:36:59,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:36:59,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2023-12-20 03:36:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:59,062 INFO L225 Difference]: With dead ends: 1220 [2023-12-20 03:36:59,062 INFO L226 Difference]: Without dead ends: 1072 [2023-12-20 03:36:59,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:36:59,063 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1519 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:59,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1918 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:36:59,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-12-20 03:36:59,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 403. [2023-12-20 03:36:59,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.36318407960199) internal successors, (548), 402 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 548 transitions. [2023-12-20 03:36:59,070 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 548 transitions. Word has length 136 [2023-12-20 03:36:59,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:59,070 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 548 transitions. [2023-12-20 03:36:59,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,070 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 548 transitions. [2023-12-20 03:36:59,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 03:36:59,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:59,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:59,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2023-12-20 03:36:59,071 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:59,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:59,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1290742750, now seen corresponding path program 1 times [2023-12-20 03:36:59,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:59,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004977975] [2023-12-20 03:36:59,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:59,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:59,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:59,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004977975] [2023-12-20 03:36:59,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004977975] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:59,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:59,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:36:59,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464093343] [2023-12-20 03:36:59,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:59,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:59,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:59,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:59,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:59,185 INFO L87 Difference]: Start difference. First operand 403 states and 548 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:59,290 INFO L93 Difference]: Finished difference Result 1366 states and 1958 transitions. [2023-12-20 03:36:59,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:36:59,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2023-12-20 03:36:59,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:59,291 INFO L225 Difference]: With dead ends: 1366 [2023-12-20 03:36:59,291 INFO L226 Difference]: Without dead ends: 1218 [2023-12-20 03:36:59,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:36:59,292 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 1519 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:59,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1828 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:36:59,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2023-12-20 03:36:59,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 622. [2023-12-20 03:36:59,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 1.4009661835748792) internal successors, (870), 621 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 870 transitions. [2023-12-20 03:36:59,299 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 870 transitions. Word has length 136 [2023-12-20 03:36:59,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:59,299 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 870 transitions. [2023-12-20 03:36:59,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 870 transitions. [2023-12-20 03:36:59,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 03:36:59,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:59,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:59,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2023-12-20 03:36:59,300 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:59,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:59,300 INFO L85 PathProgramCache]: Analyzing trace with hash 655189144, now seen corresponding path program 1 times [2023-12-20 03:36:59,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:59,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603077887] [2023-12-20 03:36:59,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:59,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:59,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:59,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:59,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603077887] [2023-12-20 03:36:59,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603077887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:59,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:59,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:36:59,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938644352] [2023-12-20 03:36:59,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:59,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:59,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:59,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:59,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:59,404 INFO L87 Difference]: Start difference. First operand 622 states and 870 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:59,493 INFO L93 Difference]: Finished difference Result 1512 states and 2173 transitions. [2023-12-20 03:36:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:36:59,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2023-12-20 03:36:59,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:59,494 INFO L225 Difference]: With dead ends: 1512 [2023-12-20 03:36:59,494 INFO L226 Difference]: Without dead ends: 1364 [2023-12-20 03:36:59,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:36:59,495 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1594 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:59,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 1736 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:36:59,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2023-12-20 03:36:59,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 768. [2023-12-20 03:36:59,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 767 states have (on average 1.4146023468057367) internal successors, (1085), 767 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1085 transitions. [2023-12-20 03:36:59,503 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1085 transitions. Word has length 136 [2023-12-20 03:36:59,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:59,503 INFO L495 AbstractCegarLoop]: Abstraction has 768 states and 1085 transitions. [2023-12-20 03:36:59,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,503 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1085 transitions. [2023-12-20 03:36:59,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 03:36:59,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:59,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:59,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2023-12-20 03:36:59,504 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:59,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:59,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1681502324, now seen corresponding path program 1 times [2023-12-20 03:36:59,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:59,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289004454] [2023-12-20 03:36:59,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:59,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:59,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:59,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289004454] [2023-12-20 03:36:59,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289004454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:59,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:59,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:36:59,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094271145] [2023-12-20 03:36:59,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:59,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:59,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:59,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:59,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:59,615 INFO L87 Difference]: Start difference. First operand 768 states and 1085 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:59,709 INFO L93 Difference]: Finished difference Result 1658 states and 2388 transitions. [2023-12-20 03:36:59,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:36:59,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2023-12-20 03:36:59,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:59,710 INFO L225 Difference]: With dead ends: 1658 [2023-12-20 03:36:59,711 INFO L226 Difference]: Without dead ends: 1510 [2023-12-20 03:36:59,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:36:59,711 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1703 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:59,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 1781 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:36:59,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2023-12-20 03:36:59,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 914. [2023-12-20 03:36:59,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 913 states have (on average 1.4238773274917853) internal successors, (1300), 913 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1300 transitions. [2023-12-20 03:36:59,721 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1300 transitions. Word has length 136 [2023-12-20 03:36:59,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:59,721 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1300 transitions. [2023-12-20 03:36:59,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,721 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1300 transitions. [2023-12-20 03:36:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 03:36:59,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:59,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:59,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2023-12-20 03:36:59,724 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:59,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:59,724 INFO L85 PathProgramCache]: Analyzing trace with hash 841520143, now seen corresponding path program 1 times [2023-12-20 03:36:59,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:59,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4247491] [2023-12-20 03:36:59,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:59,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:59,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:59,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4247491] [2023-12-20 03:36:59,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4247491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:59,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:59,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:36:59,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26428952] [2023-12-20 03:36:59,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:59,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:36:59,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:59,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:36:59,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:36:59,771 INFO L87 Difference]: Start difference. First operand 914 states and 1300 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:59,800 INFO L93 Difference]: Finished difference Result 1721 states and 2485 transitions. [2023-12-20 03:36:59,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:36:59,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2023-12-20 03:36:59,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:59,801 INFO L225 Difference]: With dead ends: 1721 [2023-12-20 03:36:59,801 INFO L226 Difference]: Without dead ends: 916 [2023-12-20 03:36:59,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:36:59,803 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 86 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:59,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 373 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:36:59,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2023-12-20 03:36:59,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 914. [2023-12-20 03:36:59,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 913 states have (on average 1.4173055859802848) internal successors, (1294), 913 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1294 transitions. [2023-12-20 03:36:59,810 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1294 transitions. Word has length 136 [2023-12-20 03:36:59,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:59,811 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1294 transitions. [2023-12-20 03:36:59,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1294 transitions. [2023-12-20 03:36:59,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 03:36:59,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:59,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:59,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2023-12-20 03:36:59,812 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:59,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:59,812 INFO L85 PathProgramCache]: Analyzing trace with hash 72227150, now seen corresponding path program 1 times [2023-12-20 03:36:59,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:59,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785450897] [2023-12-20 03:36:59,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:59,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:59,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:59,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:59,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785450897] [2023-12-20 03:36:59,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785450897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:59,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:59,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:36:59,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514464946] [2023-12-20 03:36:59,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:59,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:36:59,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:59,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:36:59,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:36:59,853 INFO L87 Difference]: Start difference. First operand 914 states and 1294 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:36:59,869 INFO L93 Difference]: Finished difference Result 2453 states and 3531 transitions. [2023-12-20 03:36:59,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:36:59,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2023-12-20 03:36:59,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:36:59,870 INFO L225 Difference]: With dead ends: 2453 [2023-12-20 03:36:59,870 INFO L226 Difference]: Without dead ends: 1648 [2023-12-20 03:36:59,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:36:59,871 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 97 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:36:59,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 530 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:36:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2023-12-20 03:36:59,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1646. [2023-12-20 03:36:59,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1645 states have (on average 1.4164133738601823) internal successors, (2330), 1645 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2330 transitions. [2023-12-20 03:36:59,882 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2330 transitions. Word has length 136 [2023-12-20 03:36:59,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:36:59,882 INFO L495 AbstractCegarLoop]: Abstraction has 1646 states and 2330 transitions. [2023-12-20 03:36:59,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:36:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2330 transitions. [2023-12-20 03:36:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 03:36:59,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:36:59,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:36:59,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2023-12-20 03:36:59,883 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:36:59,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:36:59,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1617232326, now seen corresponding path program 1 times [2023-12-20 03:36:59,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:36:59,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937285921] [2023-12-20 03:36:59,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:36:59,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:36:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:36:59,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:36:59,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:36:59,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937285921] [2023-12-20 03:36:59,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937285921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:36:59,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:36:59,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:36:59,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527151057] [2023-12-20 03:36:59,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:36:59,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:36:59,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:36:59,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:36:59,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:36:59,989 INFO L87 Difference]: Start difference. First operand 1646 states and 2330 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:00,144 INFO L93 Difference]: Finished difference Result 3334 states and 4761 transitions. [2023-12-20 03:37:00,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:37:00,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2023-12-20 03:37:00,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:00,146 INFO L225 Difference]: With dead ends: 3334 [2023-12-20 03:37:00,146 INFO L226 Difference]: Without dead ends: 3053 [2023-12-20 03:37:00,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:37:00,147 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1546 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:00,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 1854 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:37:00,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2023-12-20 03:37:00,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 1925. [2023-12-20 03:37:00,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1924 states have (on average 1.4199584199584199) internal successors, (2732), 1924 states have internal predecessors, (2732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2732 transitions. [2023-12-20 03:37:00,162 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2732 transitions. Word has length 136 [2023-12-20 03:37:00,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:00,162 INFO L495 AbstractCegarLoop]: Abstraction has 1925 states and 2732 transitions. [2023-12-20 03:37:00,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2732 transitions. [2023-12-20 03:37:00,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 03:37:00,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:00,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:00,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2023-12-20 03:37:00,163 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:00,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:00,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2097560110, now seen corresponding path program 1 times [2023-12-20 03:37:00,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:00,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537820301] [2023-12-20 03:37:00,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:00,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:00,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:00,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537820301] [2023-12-20 03:37:00,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537820301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:00,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:00,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:37:00,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787844287] [2023-12-20 03:37:00,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:00,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:00,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:00,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:00,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:00,269 INFO L87 Difference]: Start difference. First operand 1925 states and 2732 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:00,417 INFO L93 Difference]: Finished difference Result 3613 states and 5163 transitions. [2023-12-20 03:37:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:37:00,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2023-12-20 03:37:00,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:00,420 INFO L225 Difference]: With dead ends: 3613 [2023-12-20 03:37:00,420 INFO L226 Difference]: Without dead ends: 3332 [2023-12-20 03:37:00,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:37:00,421 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1442 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 2078 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:00,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 2078 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:37:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2023-12-20 03:37:00,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 2204. [2023-12-20 03:37:00,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 2203 states have (on average 1.4226055379028597) internal successors, (3134), 2203 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 3134 transitions. [2023-12-20 03:37:00,438 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 3134 transitions. Word has length 136 [2023-12-20 03:37:00,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:00,438 INFO L495 AbstractCegarLoop]: Abstraction has 2204 states and 3134 transitions. [2023-12-20 03:37:00,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 3134 transitions. [2023-12-20 03:37:00,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-20 03:37:00,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:00,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:00,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2023-12-20 03:37:00,439 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:00,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:00,440 INFO L85 PathProgramCache]: Analyzing trace with hash 258153237, now seen corresponding path program 1 times [2023-12-20 03:37:00,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:00,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351663445] [2023-12-20 03:37:00,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:00,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:00,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:00,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:00,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351663445] [2023-12-20 03:37:00,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351663445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:00,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:00,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:37:00,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695088506] [2023-12-20 03:37:00,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:00,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:37:00,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:00,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:37:00,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:00,513 INFO L87 Difference]: Start difference. First operand 2204 states and 3134 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:00,542 INFO L93 Difference]: Finished difference Result 5509 states and 7864 transitions. [2023-12-20 03:37:00,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:37:00,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2023-12-20 03:37:00,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:00,544 INFO L225 Difference]: With dead ends: 5509 [2023-12-20 03:37:00,544 INFO L226 Difference]: Without dead ends: 3414 [2023-12-20 03:37:00,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:00,546 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 112 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:00,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:37:00,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2023-12-20 03:37:00,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3292. [2023-12-20 03:37:00,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 3291 states have (on average 1.4175022789425706) internal successors, (4665), 3291 states have internal predecessors, (4665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 4665 transitions. [2023-12-20 03:37:00,567 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 4665 transitions. Word has length 137 [2023-12-20 03:37:00,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:00,567 INFO L495 AbstractCegarLoop]: Abstraction has 3292 states and 4665 transitions. [2023-12-20 03:37:00,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 4665 transitions. [2023-12-20 03:37:00,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-20 03:37:00,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:00,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:00,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2023-12-20 03:37:00,568 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:00,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:00,569 INFO L85 PathProgramCache]: Analyzing trace with hash 541145819, now seen corresponding path program 1 times [2023-12-20 03:37:00,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:00,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336167602] [2023-12-20 03:37:00,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:00,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:00,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:00,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:00,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336167602] [2023-12-20 03:37:00,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336167602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:00,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:00,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:37:00,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182088563] [2023-12-20 03:37:00,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:00,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:37:00,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:00,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:37:00,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:00,642 INFO L87 Difference]: Start difference. First operand 3292 states and 4665 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:00,665 INFO L93 Difference]: Finished difference Result 9478 states and 13448 transitions. [2023-12-20 03:37:00,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:37:00,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2023-12-20 03:37:00,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:00,670 INFO L225 Difference]: With dead ends: 9478 [2023-12-20 03:37:00,671 INFO L226 Difference]: Without dead ends: 6295 [2023-12-20 03:37:00,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:00,673 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 105 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:00,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:37:00,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6295 states. [2023-12-20 03:37:00,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6295 to 6113. [2023-12-20 03:37:00,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6113 states, 6112 states have (on average 1.411649214659686) internal successors, (8628), 6112 states have internal predecessors, (8628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6113 states to 6113 states and 8628 transitions. [2023-12-20 03:37:00,717 INFO L78 Accepts]: Start accepts. Automaton has 6113 states and 8628 transitions. Word has length 138 [2023-12-20 03:37:00,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:00,717 INFO L495 AbstractCegarLoop]: Abstraction has 6113 states and 8628 transitions. [2023-12-20 03:37:00,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,718 INFO L276 IsEmpty]: Start isEmpty. Operand 6113 states and 8628 transitions. [2023-12-20 03:37:00,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-20 03:37:00,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:00,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:00,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2023-12-20 03:37:00,718 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:00,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:00,718 INFO L85 PathProgramCache]: Analyzing trace with hash -262829556, now seen corresponding path program 1 times [2023-12-20 03:37:00,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:00,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600687351] [2023-12-20 03:37:00,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:00,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:00,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:00,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:00,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600687351] [2023-12-20 03:37:00,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600687351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:00,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:00,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:37:00,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351350523] [2023-12-20 03:37:00,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:00,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:37:00,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:00,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:37:00,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:00,790 INFO L87 Difference]: Start difference. First operand 6113 states and 8628 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:00,824 INFO L93 Difference]: Finished difference Result 17761 states and 25022 transitions. [2023-12-20 03:37:00,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:37:00,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2023-12-20 03:37:00,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:00,835 INFO L225 Difference]: With dead ends: 17761 [2023-12-20 03:37:00,835 INFO L226 Difference]: Without dead ends: 11757 [2023-12-20 03:37:00,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:00,840 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 98 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:00,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:37:00,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2023-12-20 03:37:00,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 11395. [2023-12-20 03:37:00,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11395 states, 11394 states have (on average 1.4015271195365981) internal successors, (15969), 11394 states have internal predecessors, (15969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11395 states to 11395 states and 15969 transitions. [2023-12-20 03:37:00,930 INFO L78 Accepts]: Start accepts. Automaton has 11395 states and 15969 transitions. Word has length 139 [2023-12-20 03:37:00,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:00,930 INFO L495 AbstractCegarLoop]: Abstraction has 11395 states and 15969 transitions. [2023-12-20 03:37:00,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:00,931 INFO L276 IsEmpty]: Start isEmpty. Operand 11395 states and 15969 transitions. [2023-12-20 03:37:00,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 03:37:00,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:00,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:00,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2023-12-20 03:37:00,931 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:00,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:00,932 INFO L85 PathProgramCache]: Analyzing trace with hash -754057410, now seen corresponding path program 1 times [2023-12-20 03:37:00,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:00,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270082503] [2023-12-20 03:37:00,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:00,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:01,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:01,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:01,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270082503] [2023-12-20 03:37:01,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270082503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:01,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:01,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:37:01,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346625815] [2023-12-20 03:37:01,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:01,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:37:01,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:01,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:37:01,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:01,010 INFO L87 Difference]: Start difference. First operand 11395 states and 15969 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:01,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:01,072 INFO L93 Difference]: Finished difference Result 33247 states and 46415 transitions. [2023-12-20 03:37:01,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:37:01,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2023-12-20 03:37:01,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:01,091 INFO L225 Difference]: With dead ends: 33247 [2023-12-20 03:37:01,091 INFO L226 Difference]: Without dead ends: 21961 [2023-12-20 03:37:01,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:01,102 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 91 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:01,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:37:01,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21961 states. [2023-12-20 03:37:01,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21961 to 21239. [2023-12-20 03:37:01,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21239 states, 21238 states have (on average 1.3881250588567662) internal successors, (29481), 21238 states have internal predecessors, (29481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:01,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21239 states to 21239 states and 29481 transitions. [2023-12-20 03:37:01,329 INFO L78 Accepts]: Start accepts. Automaton has 21239 states and 29481 transitions. Word has length 140 [2023-12-20 03:37:01,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:01,329 INFO L495 AbstractCegarLoop]: Abstraction has 21239 states and 29481 transitions. [2023-12-20 03:37:01,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:01,330 INFO L276 IsEmpty]: Start isEmpty. Operand 21239 states and 29481 transitions. [2023-12-20 03:37:01,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-20 03:37:01,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:01,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:01,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2023-12-20 03:37:01,330 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:01,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:01,331 INFO L85 PathProgramCache]: Analyzing trace with hash -382631269, now seen corresponding path program 1 times [2023-12-20 03:37:01,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:01,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255714083] [2023-12-20 03:37:01,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:01,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:01,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:01,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:01,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255714083] [2023-12-20 03:37:01,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255714083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:01,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:01,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:37:01,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811911652] [2023-12-20 03:37:01,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:01,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:37:01,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:01,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:37:01,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:01,404 INFO L87 Difference]: Start difference. First operand 21239 states and 29481 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:01,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:01,514 INFO L93 Difference]: Finished difference Result 62059 states and 85691 transitions. [2023-12-20 03:37:01,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:37:01,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2023-12-20 03:37:01,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:01,554 INFO L225 Difference]: With dead ends: 62059 [2023-12-20 03:37:01,554 INFO L226 Difference]: Without dead ends: 40929 [2023-12-20 03:37:01,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:01,577 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 84 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:01,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 491 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:37:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40929 states. [2023-12-20 03:37:01,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40929 to 39487. [2023-12-20 03:37:01,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39487 states, 39486 states have (on average 1.371752013371828) internal successors, (54165), 39486 states have internal predecessors, (54165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:01,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39487 states to 39487 states and 54165 transitions. [2023-12-20 03:37:01,999 INFO L78 Accepts]: Start accepts. Automaton has 39487 states and 54165 transitions. Word has length 141 [2023-12-20 03:37:01,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:01,999 INFO L495 AbstractCegarLoop]: Abstraction has 39487 states and 54165 transitions. [2023-12-20 03:37:01,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:01,999 INFO L276 IsEmpty]: Start isEmpty. Operand 39487 states and 54165 transitions. [2023-12-20 03:37:02,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-20 03:37:02,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:02,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:02,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2023-12-20 03:37:02,000 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:02,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:02,000 INFO L85 PathProgramCache]: Analyzing trace with hash 473251129, now seen corresponding path program 1 times [2023-12-20 03:37:02,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:02,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582513007] [2023-12-20 03:37:02,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:02,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:02,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:02,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582513007] [2023-12-20 03:37:02,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582513007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:02,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:02,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:37:02,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820790713] [2023-12-20 03:37:02,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:02,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:37:02,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:02,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:37:02,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:02,074 INFO L87 Difference]: Start difference. First operand 39487 states and 54165 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:02,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:02,295 INFO L93 Difference]: Finished difference Result 115363 states and 157223 transitions. [2023-12-20 03:37:02,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:37:02,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2023-12-20 03:37:02,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:02,375 INFO L225 Difference]: With dead ends: 115363 [2023-12-20 03:37:02,375 INFO L226 Difference]: Without dead ends: 75985 [2023-12-20 03:37:02,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:02,414 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 74 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:02,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 489 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:37:02,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75985 states. [2023-12-20 03:37:03,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75985 to 73103. [2023-12-20 03:37:03,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73103 states, 73102 states have (on average 1.3522612240431178) internal successors, (98853), 73102 states have internal predecessors, (98853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73103 states to 73103 states and 98853 transitions. [2023-12-20 03:37:03,441 INFO L78 Accepts]: Start accepts. Automaton has 73103 states and 98853 transitions. Word has length 142 [2023-12-20 03:37:03,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:03,441 INFO L495 AbstractCegarLoop]: Abstraction has 73103 states and 98853 transitions. [2023-12-20 03:37:03,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:03,442 INFO L276 IsEmpty]: Start isEmpty. Operand 73103 states and 98853 transitions. [2023-12-20 03:37:03,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-20 03:37:03,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:03,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:03,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2023-12-20 03:37:03,442 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:03,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:03,442 INFO L85 PathProgramCache]: Analyzing trace with hash -477023038, now seen corresponding path program 1 times [2023-12-20 03:37:03,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:03,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991629892] [2023-12-20 03:37:03,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:03,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:03,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:03,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991629892] [2023-12-20 03:37:03,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991629892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:03,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:03,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:37:03,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465000476] [2023-12-20 03:37:03,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:03,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:37:03,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:03,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:37:03,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:37:03,582 INFO L87 Difference]: Start difference. First operand 73103 states and 98853 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:03,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:03,997 INFO L93 Difference]: Finished difference Result 113397 states and 152884 transitions. [2023-12-20 03:37:03,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:37:03,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2023-12-20 03:37:03,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:04,135 INFO L225 Difference]: With dead ends: 113397 [2023-12-20 03:37:04,135 INFO L226 Difference]: Without dead ends: 113395 [2023-12-20 03:37:04,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:37:04,174 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 363 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:04,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1153 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:37:04,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113395 states. [2023-12-20 03:37:05,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113395 to 74447. [2023-12-20 03:37:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74447 states, 74446 states have (on average 1.339024259194584) internal successors, (99685), 74446 states have internal predecessors, (99685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:05,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74447 states to 74447 states and 99685 transitions. [2023-12-20 03:37:05,459 INFO L78 Accepts]: Start accepts. Automaton has 74447 states and 99685 transitions. Word has length 143 [2023-12-20 03:37:05,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:05,459 INFO L495 AbstractCegarLoop]: Abstraction has 74447 states and 99685 transitions. [2023-12-20 03:37:05,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:05,459 INFO L276 IsEmpty]: Start isEmpty. Operand 74447 states and 99685 transitions. [2023-12-20 03:37:05,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-20 03:37:05,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:05,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:05,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2023-12-20 03:37:05,460 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:05,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:05,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1949863942, now seen corresponding path program 1 times [2023-12-20 03:37:05,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:05,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960765508] [2023-12-20 03:37:05,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:05,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:05,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:05,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:05,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960765508] [2023-12-20 03:37:05,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960765508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:05,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:05,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:37:05,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770693535] [2023-12-20 03:37:05,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:05,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:37:05,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:05,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:37:05,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:05,543 INFO L87 Difference]: Start difference. First operand 74447 states and 99685 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:06,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:06,042 INFO L93 Difference]: Finished difference Result 150483 states and 201543 transitions. [2023-12-20 03:37:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:37:06,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2023-12-20 03:37:06,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:06,308 INFO L225 Difference]: With dead ends: 150483 [2023-12-20 03:37:06,309 INFO L226 Difference]: Without dead ends: 76145 [2023-12-20 03:37:06,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:37:06,336 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 129 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:06,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 407 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:37:06,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76145 states. [2023-12-20 03:37:07,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76145 to 76143. [2023-12-20 03:37:07,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76143 states, 76142 states have (on average 1.3262194321136824) internal successors, (100981), 76142 states have internal predecessors, (100981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:07,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76143 states to 76143 states and 100981 transitions. [2023-12-20 03:37:07,261 INFO L78 Accepts]: Start accepts. Automaton has 76143 states and 100981 transitions. Word has length 143 [2023-12-20 03:37:07,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:07,262 INFO L495 AbstractCegarLoop]: Abstraction has 76143 states and 100981 transitions. [2023-12-20 03:37:07,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:07,262 INFO L276 IsEmpty]: Start isEmpty. Operand 76143 states and 100981 transitions. [2023-12-20 03:37:07,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-20 03:37:07,269 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:07,270 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:07,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2023-12-20 03:37:07,270 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:07,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:07,271 INFO L85 PathProgramCache]: Analyzing trace with hash 896095117, now seen corresponding path program 1 times [2023-12-20 03:37:07,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:07,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489166421] [2023-12-20 03:37:07,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:07,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:08,001 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:08,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:08,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489166421] [2023-12-20 03:37:08,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489166421] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:37:08,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597508530] [2023-12-20 03:37:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:08,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:37:08,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:37:08,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:37:08,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 03:37:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:08,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 03:37:08,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:37:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:09,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:37:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:10,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597508530] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:37:10,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:37:10,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 30 [2023-12-20 03:37:10,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215882409] [2023-12-20 03:37:10,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:37:10,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-20 03:37:10,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:10,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-20 03:37:10,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=825, Unknown=0, NotChecked=0, Total=930 [2023-12-20 03:37:10,259 INFO L87 Difference]: Start difference. First operand 76143 states and 100981 transitions. Second operand has 31 states, 31 states have (on average 15.64516129032258) internal successors, (485), 30 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:04,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:04,167 INFO L93 Difference]: Finished difference Result 2317144 states and 3020540 transitions. [2023-12-20 03:38:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 713 states. [2023-12-20 03:38:04,168 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 15.64516129032258) internal successors, (485), 30 states have internal predecessors, (485), 0 states have call successors, (0), 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 179 [2023-12-20 03:38:04,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:08,244 INFO L225 Difference]: With dead ends: 2317144 [2023-12-20 03:38:08,244 INFO L226 Difference]: Without dead ends: 2241110 [2023-12-20 03:38:08,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1078 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 740 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252467 ImplicationChecksByTransitivity, 39.5s TimeCoverageRelationStatistics Valid=53172, Invalid=496650, Unknown=0, NotChecked=0, Total=549822 [2023-12-20 03:38:08,708 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 17716 mSDsluCounter, 7900 mSDsCounter, 0 mSdLazyCounter, 8095 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17716 SdHoareTripleChecker+Valid, 8433 SdHoareTripleChecker+Invalid, 8200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 8095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:08,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17716 Valid, 8433 Invalid, 8200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [105 Valid, 8095 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-20 03:38:10,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241110 states. [2023-12-20 03:38:24,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241110 to 375510. [2023-12-20 03:38:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375510 states, 375509 states have (on average 1.316298677262063) internal successors, (494282), 375509 states have internal predecessors, (494282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:25,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375510 states to 375510 states and 494282 transitions. [2023-12-20 03:38:25,559 INFO L78 Accepts]: Start accepts. Automaton has 375510 states and 494282 transitions. Word has length 179 [2023-12-20 03:38:25,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:25,559 INFO L495 AbstractCegarLoop]: Abstraction has 375510 states and 494282 transitions. [2023-12-20 03:38:25,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 15.64516129032258) internal successors, (485), 30 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:25,559 INFO L276 IsEmpty]: Start isEmpty. Operand 375510 states and 494282 transitions. [2023-12-20 03:38:25,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-20 03:38:25,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:25,589 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:25,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 03:38:25,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2023-12-20 03:38:25,797 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:25,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:25,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2132455148, now seen corresponding path program 1 times [2023-12-20 03:38:25,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:25,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121380842] [2023-12-20 03:38:25,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:25,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:26,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:26,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121380842] [2023-12-20 03:38:26,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121380842] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:38:26,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761151938] [2023-12-20 03:38:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:26,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:38:26,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:38:26,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:38:26,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 03:38:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:26,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-20 03:38:26,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:38:27,535 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:27,535 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:38:28,089 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:28,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761151938] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:38:28,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:38:28,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 29 [2023-12-20 03:38:28,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413647455] [2023-12-20 03:38:28,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:38:28,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 03:38:28,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:28,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 03:38:28,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2023-12-20 03:38:28,091 INFO L87 Difference]: Start difference. First operand 375510 states and 494282 transitions. Second operand has 29 states, 29 states have (on average 16.689655172413794) internal successors, (484), 29 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)